Art. LIII.—Notes on New Zealand Mosses: Genus Grimmia.

Transactions and Proceedings of the Royal Society of New Zealand, Volume 27, 1894, Page 409

Art. LIII.—Notes on New Zealand Mosses: Genus Grimmia. By Robert Brown. [Read before the Philosophical Institute of Canterbury, 6th June, 1894.] Plates XXIX.–XXIV. Section A. Columella adhering to the operculum. 1. Grimmia (Schstidium) aquatica, sp. nov. Plants light-green at the tips of the branches, dark below; growing in loose patches from 2in. to 5in. long, subdichotomously branched by innovations. Stem and branches slender. Leaves erecto-patent, loosely imbricating; lower broadly lanceolate, obtuse, very concave, slightly cucul-late at the apex; upper ones larger. Margins entire, nerved to the apex. Perichaetial leaves longer than the upper ones, broadly lanceolate-obtuse, cucullate at the apex, concave, margins entire, nerve continuous. Areola punctiform, crisped when dry. Fruitstalk 1/32in. Capsule sometimes sessile, immersed in the perichaetial leaves, subrotund, large, as broad as long, mouth wide. Peristome single, 16, entire or slightly

bifid, perforated, red. Operculum large, convexo-rostrate, oblique. Columella adhering to the operculum. Calyptra not found. Hab. On rocks, submerged in the water of a small tarn, near the summit of Kelly's Hill; altitude, 3,800ft.; growing with Andrea aquatilis; November, 1889. Collected by R. B. 2. Grimmia (Sehistidium) searellii, sp. nov. Plants yellowish at the tips of the branches, dark-green below, ¾in. high, growing in small tufts branched by innovations, fastigiate. Branches slender. Leaves closely imbricating, diaphanous, erecto-patent; lower leaves ovate-lanceolate, tapering into a hyaline hair-point one-third the length of the leaf, concave. Margins entire, keeled. Nerve ending at the hyaline hair-point. Areola: Upper punctiform, lower quadrate, when dry erect and adpressed. Perichaetial leaves slightly smaller than the upper ones, but otherwise very similar. Fruitstalk extremely short. Capsule small, immersed, subrotund, mouth wide. Peristome single, 16, perforated, very slightly bifid or entire at the apex. Operculum large, mammillate. Columella falling away, adherent to the operculum. Calyptra not found. Hab. On rocks, Mount Self, near the River Hurunui; March, 1893. Collected by R. B. Section B. Columella not adhering to the operculum. 3. Grimmia (Schistidium) revisa, sp. nov. Plants small, dark-green, growing in tufts ¼in.–¾in. high, branched by innovations, fastigiate. Leaves erecto-patent, diaphanous, upper and middle lanceolate or oblong-lanceolate, ending in a hyaline toothed hair-point, concave. Margins entire, flat or slightly recurved. Nerve ending at the hyaline point. Leaves, lower ovate-lanceolate or cordate-lanceolate, acute, with or without a hair-point, nerved. Margins entire. Areola: Upper punctiform, lower oblong-quadrate; when dry erect and closely adpressed. Perichatial leaves large, erect, broadly oblong-lanceolate, ending in toothed hyaline hair-point, concave. Margins entire. Fruitstalk 1/32in. -long. Capsule immersed, oblong-ovate, symmetrical. Operculum straight, conico-rostrate, about one-third the length of the capsule. Columella not falling away, not attached to the operculum. Peristome single, 16, irregular, shortly bifid, perforated. Calyptra small, mitriform, lobed at the base. Hab. Damp rocks, Port Lyttelton hills; 1876. Collected by R. B. This moss is extremely common in the Middle Island.

4. Grimmia (Schistidium) saxitilis, sp. nov. Plants reddish-brown, growing in small tufts about ½in. high, branched by innovations, fastigiate. Leaves diaphanous, closely imbricating, lower spreading; upper nearly erect, ovate-lanceolate, acuminate, with a hyaline short hair-point, base erect, sheathing, middle leaves smaller, but otherwise similar to the upper ones, concave. Margins entire. Nerve ending at the hair-point. Areola upper punctiform, loosely adpressed when dry. Perichaetial leaves very large, erect, semi-convolute, sheathing, oblong-lanceolate, tapering into a short hyaline hair-point. Fruitstalk short. Capsule immersed, ovate-oblong, mouth wide. Peristome single, 16, slightly bifid and minutely perforated. Operoulum convex, with a short straight beak. Columella not adhering to the operculum. Calyptra not found. Hab. On rocks, Broken River, Canterbury; November, 1889. Collected by R. B. 5. Grimmia (Schistidium) mitchelli, sp. nov. Plants growing in small dense tufts, brownish-green, ¼in. high, branched by innovations, fastigiate. Leaves imbricating, erecto-patent; lower leaves ovate-lanceolate, acute; upper ones oblong-lanceolate, acute, without hyaline hair-points. Margins entire, recurved to near the apex, concave, keeled. Nerve continuous. Areola upper punctiform, when dry slightly crisp. Perichaetial leaves large, erect, broadly oblong-lanceolate, acute, slightly recurved near the apex. Fruitstalk very short. Capsule immersed, broadly ovate, mouth wide. Peristome single, 16, irregular, perforated. Operculum conico-rostrate, oblique, slender. Columella not adherent to the operculum. Calyptra mitriform, entire at the base. Hab. Damp rocks, Port Lyttelton hills; 1878: and Mount Self, near the Hurunui River; March, 1893. Collected by R. B. 6. Grimmia (Schistidium) cyathiformis, sp. nov. Plants loosely tufted, brownish-green, ½in.–1in. high, branched by innovations, spreading, fastigiate. Leaves imbricating, diaphanous, erecto-patent; lower leaves ovate-lanceolate, obtuse; upper ones oblong-lanceolate, with a short acute hyaline point, concave. Margins entire. Nerve ending at the hyaline point. Areola upper punctiform, when dry erect and adpressed. Perichaetial leaves erect, oblong-lanceolate, acute, concave. Margins entire, nerved, disappearing under the apex, without a hyaline point. Fruitstalk very short. Capsule cyathiform, mouth wide. Peristome single, 16, slender at the apex, shortly bifid or minutely perforated. Oper-

cuhim convexo-rostrate. Beak slender, straight. Columella not adherent to the operculum. Calyptra not found. Hab. Damp rocks, Port Lyttelton hills; 1880: and Hurunui Gorge; March, 1893. Collected by R. B. 7. Grimmia (Schistidium) alfredii, sp. nov. Plants brownish-green, growing in small tufts ¼in.–1in. high, branched by innovations, fastigiate, leaves closely imbricating, erecto-patent, diaphanous; lower leaves lanceolate, acute; upper ones ovate-lanceolate or oblong-lanceolate, tapering into a short hyaline point. Margins entire, recurved, concave, nerved to the hyaline point. Areola upper punctiform, when dry erect and adpressed to the branches. Perichaetial leaves erect, oblong-lanceolate, tapering into a short hyaline point, concave. Margins entire. Nerve ending at the hyaline point. Fruitstalk very short. Capsule small, ovate, immersed, mouth wide. Peristome single, irregular, 16, minutely bifid, perforated. Operculum conico-rostrate, straight, about one-half the length of the capsule. Columella not adhering to the operculum. Calyptra not found. Hab. Limestone rocks, Broken River, Canterbury; November, 1889. Collected by R. B. 8. Grimmia (Schistidium) turbinata, sp. nov. Plants brownish – green, growing in small dense tufts ¼in–½in. high, branched by innovations, fastigiate, Leaves spreading, recurved, diaphanous; lower leaves ovate-lanceolate, acute; middle ones ovate-lanceolate, tapering into a hyaline point, upper oblong-lanceolate, tapering into a hyaline point, concave. Margins entire. Nerve ending at the hyaline point. Areola upper punctiform, leaves nearly erect when dry. Perichaetial leaves longer, erect, sheathing, oblong – lanceolate, tapering into a hyaline point. Nerve ending at the hyaline point. Fruitstalk as long as the capsule. Capsule immersed, turbinate, mouth wide. Peristome single, 16, perforated. Operculum convex, apiculate, straight. Columella not adhering to the operculum. Calyptra cucullate, lobed at the base. Hab. Damp rocks, Port Lyttelton hills; June, 1884: and Hurunui Gorge; March, 1893. Collected by R. B. 9. Grimmia (Schistidium) argentea, sp. nov. Plants growing in small greyish-white tufts ¼in. high, branched by innovations, fastigiate. Leaves closely imbricating, nearly erect, diaphanous; lower leaves small, linear-lanceolate, with toothed hyaline hair-point; upper ones large, broadly ovate-lanceolote, tapering into a toothed hair-point, upper half of leaf, hyaline. Margins entire. Nerve running

out into the hair-point, very concave. Areola upper punctiform, when dry erect and adpressed. Perichaetial leaves similar to the upper ones, sheathing the capsule. Fruitstalk extremely short. Capsule subrotund, small, mouth wide, immersed. Peristome single, 16, imperfect. Operculum short, conico-rostrate. Columella not falling away, not adherent to the operculum. Calyptra mitriform, entire at base. Hab. Limestone rocks, Castle Hill, Canterbury; November, 1889. Collected by R.B. This plant appears to be very rare. 10. Grimmia (Schistidium) wrightii, sp. nov. Plants small, growing in dense red-brown tufts ¼in.–½in. high, branched by innovations, fastigiate. Leaves small, closely imbricating, erecto-patent, ovate-lanceolate, acute, concave. Margins entire. Nerve continued to the apex. Areola upper punctiform, when dry erect and adpressed. Perichaetial leaves erect, outer one larger than the inner, small, oblong-lanceolate, acute, shortly hyaline at the apex. Margins entire, concave. Nerve ending at the hyaline apex. Fruitstalk very short. Capsule small, shortly ovate, immersed, mouth wide. Peristome single, 16, imperfect. Operculum convexo-rostrate. Beak short, straight, Columella not falling away, not adhering to the operculum. Hab. Limestone rocks, Broken River, Canterbury; November, 1889. Collected by R. B. Operculum not found in three species next described. 11. Grimmia (Schistidium) laingii, sp. nov. Plants reddish-brown, growing in small tufts ½in.–1in. high, branched by innovations, fastigiate. Leaves diaphanous, erecto-patent, closely imbricating; lower leaves ovate-lanceolate, acute, muticous or with a short hyaline point; upper ones ovate-lanceolate or oblong-lanceolate, tapering hyaline, toothed hair-point, concave. Margins entire. Nerve ending at the hair-point. Areola upper punctiform, when dry erect, adpressed. Perichaetial erect, narrower than the upper leaves, semi-convolute, oblong-lanceolate, tapering into a toothed hyaline hair-point. Nerve ending at the hair-point. Fruit-stalk very short. Capsule immersed, turbinate, mouth wide. Peristome single, 16, perforated or slightly bifid. Operculum and calyptra not found. Hab. Damp rocks, Mount Torlesse; January, 1886. Collected by R. B. (named after R. M. Laing, Esq., B.Sc., President of the Philosophical Institute of Canterbury).

12. Grimmia (Schistidium) gracilis, sp. nov. Plants growing in small, dense tufts, brownish-coloured, ¼in.—½in. high, branched by innovations, fastigiate. Leaves closely imbricating, diaphanous, erecto-patent; lower leaves linear, tapering into a long hyaline hair-point; upper ones narrowly oblong-lanceolate or ovate-linear-lanceolate, tapering into a long slender hyaline hair-point. concave. Margins entire. Nerve ending at the hair-point. Areola upper punctiform, slightly crisp when dry. Perichaetial leaves shorter than the upper ones, ovate-lanceolate, tapering into a long hyaline hair-point, inner perichaetial leaf smallest, concave. Margins entire. Nerve ending at the hair-point. Fruitstalk very short, slender. Capsule immersed, small, turbihate, mouth wide. Peristome single, 16, incomplete. Operculum and calyptra not found. Hab. Limestone rocks, Broken River, Canterbury; November, 1889. Collected by R. B. 13. Grimmia (Schistidium) minime-perichaetalis, sp. nov. Plants dark-green, growing in small tufts, ¼in.–1in. high, branched by innovations, fastigiate. Leaves closely imbricating, spreading, diaphanous; lower leaves small, muticous, or with a short hyaline point; middle and upper ones oblong-lanceolate, tapering into a toothed hyaline hair-point, concave. Margins entire. Nerve ending at the hair-point. Areola upper punctiform, erect and adpressed when dry. Perichaetial leaves very small: inner lanceolate, acute, nerved to the apex, concave; outer larger, lanceolate, tapering into a hyaline toothed hair-point. Margins entire. Fruitstalk extremely short. Capsule short, subrotund, immersed, mouth wide. Peristome single, 16, minutely perforated. Operculum not found. Calyptra mitriform, small. Hab. Rocks, Mount Torlesse; January, 1886. Collected by R. B. 14. Grimmia novae-zealandiae, sp. nov. Plants dark- or yellowish-green, growing in tufts ¼in.–1in. high, branched by innovations, fastigiate. Leaves erecto-patent, diaphanous; upper ones ovate-lanceolate, with a long tapering hyaline hair-point, slightly toothed, concave. Margins entire. Nerve ending at the hyaline point. Areola upper punctiform, slightly adpressed and erect when dry. Perichaetial leaves one-half narrower than the upper ones, erect, linear-lanceolate, ending in a long hyaline hair-point. Margins entire, semi-convolute. Nerve ending at the hair-point. Fruit-stalk ¼in., curved, erect, and twisted when dry. Capsule ovate, mouth wide. Peristome single, 16, slightly bifid and perforated. Operculum mammillate. Calyptra mitriform, monoecious.

Hab. Damp rocks, Port Lyttelton hills; Mount Torlesse; Stewart Island; Dunedin; West Coast. One of the commonest of this genus. Collected in these localities by R. B. 15. Grimmia tricophylla, var. nigra, var. nov. Plants small, dark-green, growing in dense tufts ¼in.–½in. high, branched by innovations, fastigiate. Leaves closely imbricating, diaphanous, erecto-patent; lower leaves ovate-lanceolate, acute, muticous; upper ones ovate-lanceolate, narrowing towards the slender hyaline hair-point, concave. Margins entire. Nerve ending at the hair-point. Areola upper punctiform, nearly black when dry. Perichaetial leaves erect or: long-lanceolate, narrowed into the hyaline hair-point, concave. Margins entire. Nerve disappearing at the hair-point. Fruitstalk decurved. Capsule ovate, mouth large. Peristome single, 16, incomplete. Operculum and calyptra not found. Hab. Rocks in the gorge of the River Hurunui; March, 1893. Collected by R. B. 16. Grimmia versabilis, sp. nov. Plants small, dark-green, growing in dense tufts ¼in.–½in. high, branched by innovations, fastigiate. Leaves spreading, upper ones erect, diaphanous, narrow-lanceolate or oblong-lanceolate, narrowed to the hyaline hair-point, very concave, keeled. Margins entire. Nerve ending at the hair-point. Upper areola punctiform, erect and adpressed when dry. Perichaetial leaves smaller than the upper ones, erect, inner linear-lanceolate, outer ovate-lanceolate narrowed to the hyaline hair-point, concave. Margins entire, nerved to the hair-point. Fruitstalk decurved. Capsule elliptic, mouth small, annulate. Peristome single, 16, short, membranous. Operculum, narrow, conico-rostrate, oblique, one-third the length of capsule. Calyptra small, mitriform. Hab. Rocks, summit of Port Lyttelton hills; 1880. Collected by R. B. 17. Grimmia finitima, sp. nov. Plants yellowwish-green, dark below, growing in small tufts ½in. high, branched by innovations, fastigiate. Leaves: Lower spreading; upper nearly erect, diaphanous, ovate-lanceolate, narrowed to the hyaline hair-point; base erect, sheathing very concave, keeled. Margins entire. Nerve ending at the hair point. Upper areola punctiform, erect and adpressed when, dry. Perichatial leaves erect, smaller than the upper ones, ovate-lanceolate, narrowed to the hyaline hair-point; base of the leaves narrow. Margins entire, concave. Nerve ending at the hair-point. Fruitstalk decurved. Capsule elliptic, narrowed to the mouth, annulate. Peristome single, 16, bifid

to the middle. Operculum oblique, conico-rostrate, nearly one-third the length of the capsule. Calyptra not found. Hab. Rocks, Lyttelton hills; 1880. Collected by R. B. 18. Grimmia rotunda, sp. nov. Plants yellowish-green, growing in small tufts ¼in.—½in. high, branched by innovations, fastigiate. Leaves erectopatent, diaphanous, lower leaves small, ovate-lanceolate, acute, muticous, upper ones oval, tapering to a long hyaline hairpoint as long as the leaf, concave. Margins entire. Nerve ending at the hair-point. Areola upper punctiform, erect when dry. Perichcetial leaves erect, as large as the upper ones, convolute, sheathing, oval. Margins entire. Nerve ending at the hair-point. Fruitstalk decurved, rotund, narrowing to the mouth. Peristome single, 16, upper half irregularly lobed, not bifid nor perforated. Operculum mammillate. Calyptra mitriform. Hab. Rocks, Lyttelton hills; 1880. Collected by R. B. 19. Grimmia obovata, sp. nov. Plants pale or dark-green, growing in small tufts ¼in.—½in. high, branched by innovations, fastigiate. Leaves closely imbricating, erecto-patent, diaphanous, middle and upper ones ovate-lanceolate, ending in a hyaline toothed hair-point. Margins entire, concave. Nerve ending at the hair-point. Areola upper punctiform, erect when dry. Perichcetial leaves shorter than the upper ones; outer one broadly lanceolate, acuminate, with, a short hyaline point; inner one smaller, concave. Margins entire. Nerve ending at the hyaline point. Fruitstalk decurved. Capsule obovate, mouth very wide. Peristome single, 16, short, slightly bifid at the apex. Operculum, large, mammillate. Calyptra not found. Hab. Rocks, Lyttelton hills; 1880. Collected by R. B. 20. Grimmia belli, sp. nov. Plants dark-green, growing in small tufts or in large patches sometimes 2ft. or more in diameter, ¼in.—¾in. high, branched by innovations, fastigiate. Leaves closely imbricating, diaphanous, erecto-patent; lower ones cordate acute or obtuse, muticous; middle leaves cordate-lanceolate, ending in a strongly papillose hair-point; upper ones large, broadly oval, tapering to a hair-point. Margins entire, concave. Nerve ending at the hair-point. Areola upper punctiform, erect and adpressed when dry. Perichcetial large, very concave, broadly oval, ending in a hyaline hair-point. Margins entire. Nerve ending at the hair-point. Fruitstalk erect. Capsule subrotund. Peristome single, 16, shortly bifid. Operculum conic, straight, half the length of the capsule. Calyptra mitriform.

Hab. Dry rocks, Lyttelton hills, in several places; 1882. Birdling's Flat, Lake Forsyth; Mount Self, Gorge of the Hurunui; 1893. Palmer Pass, head of the River Conway; February, 1894. Collected in these localities by R. B. 21. Grimmia flexifolia, sp. nov. Plants yellow-green, growing in small tufts ½in. high, branched by innovations, fastigiate. Leaves diaphanous, erectopatent, flexuous; lower ones linear-lanceolate, muticous; middle and upper oblong-lanceolate, tapering to the hyaline hair-point, semi-convolute. Margins entire. Nerve ending at the hairpoint. Areola upper punctiform, crisped when dry. Perichcetial leaves shorter than the upper ones, linear-lanceolate, ending in a hyaline hair-point, concave. Margins entire. Nerve ending at the hair-point. Fruitstalk decurved. Capsule small, oblong, mouth wide. Peristome single, 16. Operculum stout, conic. Calyptra mitriform. Hab. Rocks, Mount Torlesse; January, 1886. Collected by R. B. 22. Grimmia pusilla, sp. nov. Plants small, reddish-brown, growing in small tufts ¼in. high, branched by innovations, fastigiate. Leaves small, erecto-patent, diaphanous; lower ones small, linear-lanceolate, with a hair-point; middle and upper leaves oblong-lanceolate or ovate-lanceolate, tapering to a hyaline hair-point, as long as the leaf, concave. Margins entire. Nerve ending at the hairpoint. Areola upper punctiform. Leaves erect when dry. Perichcetial erect, inner smaller than the outer one, oblonglanceolate, tapering to the hyaline hair-point, concave. Margins entire. Nerve ending at the hair-point. Fruitstalk decurved, 1 1/6in. long. Capsule small, obovate, mouth wide. Peristome single, 16, entire. Operculum conico – rostrate, straight. Beak short. Hab. On rocks, Mount Self, near the Hurunui River March, 1893. Collected by R. B. 23. Grimmia diminuta, sp. nov. Plants extremely small, about 1 3/2in. long, green, growing in small tufts, fastigiate. Leaves erecto-patent, middle and upper linear-lanceolate, acute or acuminate, concave. Margins entire. Nerve disappearing near the apex. Areola upper punctiform, erect when dry. Perichcetial leaves erect, triangular, acute, about one-half the length of the upper ones, concave. Margins entire, nerved to the apex. Fruitstalk decurved. Capsule small, ovate, mouth wide. Peristome single, 16, incomplete. Operculum and calyptra not found.

Hab. Limestone rocks near Castle Hill, growing along with Blindia calcarea; March, 1891. Collected by R. B. 24. Grimmia cockaynei, sp. nov. Plants yellowish-green, growing in tufts ¼in—½in. high, branched by innovations, fastigiate. Leaves diaphanous, erecto-patent, middle and upper ones narrow-ovate or oblonglanceolate, tapering to a short hyaline hair-point. Margins entire, concave. Nerve ending at the hair-point. Areola upper punctiform, erect, and adpressed when dry. Perichcetial leaves erect, linear-lanceolate, acuminate, ending in a hyaline hair-point, semi-convolute. Margins entire. Nerve ending at the hair-point. Fruitstalk decurved. Capsule elliptic, mouth narrowed. Peristome single, 16, imperfect. Operculum slender, conico-rostrate, about one-half the length of the capsule. Calyptra mitriform. Hab. Rocks, Mount Torlesse; January, 1886. Collected by R. B. 25. Grimmia petriei, sp. nov. Plants green, growing in small tufts ½in.—¾in. high, branched by innovations, fastigiate. Leaves imbricating, erecto-patent, diaphanous, middle and upper ovate-lanceolate, narrowed into a short hyaline hair-point, base erect, sheathing, keeled, concave. Margins entire. Nerve ending at the hairpoint. Areola upper punctiform, erect when dry. Perichcetial leaves erect, long, linear-lanceolate, ending in a short hyaline point, concave. Margins entire. Nerve ending at the hair-point. Fruitstalk decurved. Capsule ovate, symmetrical. Peristome small, 16, short, slender, bifid. Operculum short, conico-rostrate, one-third the length of the capsule. Calyptra mitriform, lobed at the base. Hab. On rocks, Mount Torlesse; January, 1886. Collected by R. B. 26. Grimmia stevensii, sp. nov. Plants yellowish-green, growing in tufts ½in.—¾in. high, branched by innovations, fastigate. Leaves spreading, flexuous, base erect, sheathing; lower ones linear-lanceolate; middle and upper oblong-lanceolate, narrowed to a short hyaline point, concave, keeled. Margins entire. Nerve continued to the hyaline point. Areola upper punctiform. Perichcetial leaves erect, linear-lanceolate, narrowed to a short hyaline point, semi-convolute. Nerve ending at the hyaline point. Margins entire. Fruitstalk decurved. Capsule ovate, symmetrical, narrowed to the mouth. Peristome single, 16, imperfect. Operculum small, conico-rostrate, oblique. Calyptra narrow, mitriform.

Hab. Rocks, Mount Torlesse; January, 1886. Collected by R. B. 27. Grimmia webbi, sp. nov. Plants small, dark-green, growing in tufts ¼in.—½in. high branched by innovations, fastigiate. Leaves upper erectopatent, narrowly lanceolate or oblong-lanceolate, with a short hyaline point; base erect, sheathing, concave. Margins entire. Nerve continued to the hyaline point. Areola upper punctiform, erect and adpressed when dry. Perichætial leaves erect, about one-third shorter than the upper ones, lanceolateobtuse, concave. Margins entire. Nerve ending below the apex. Outside of the perichætial are a few longer leaves narrowed from about the middle to the base. Nerve ending below the apex. Fruitstalk decurved. Capsule narrowly ovate, symmetrical, annulate. Peristome 16, single, slender, irregular, irregularly perforated, red. Annulus deciduous. Operculum short, conic. Calyptra not found. Hab. Rocks, Palmer's Pass, head-waters of the River Conway; February, 1894. Collected by R. B. I have named this plant after H. R. Webb, Esq., F.R.M.S., a member of the Council of the Canterbury Philosophical Institute. Explanation of Plates XXIX.–XXXIV. Plate XXIX. Figs. 1 and 2.—Grimmia (Schistidium) aquatica. 1. Capsule. 2. Operculum, with adherent columella. 3. Perichætial leaves. 4. Upper stem leaf. 5. Lower stem leaves. Fig. 3.—Grimmia (Schistidium) searellii. 1. Capsule. 2. Operculum, with adherent columella. 3. Perichætial leaves. 4. Stem leaves. Fig. 4.—Grimmia (Schistidium) apocarpa (British). 1. Capsule, with operculum. 2. Operculum, with adherent columella. 3. Inner perichætial leaf. 4. Outer perichætial leaf. Fig. 5.—Grimmia (Schistidium) revisa. 1. Capsule, with operculum. 2. Calyptra. 3. Perichætial leaves. 4. Stem leaves. Fig. 6.—Grimmia (Schistidium) saxitilis. 1. Capsule. 2. Operculum. 3. Perichætial leaves. 4. Upper stem leaf. 5. Lower stem leaf. Fig. 7—Grimmia (Schistidium) mitchelli. 1. Capsule. 2. Operculum. 3. Calyptra. 4. Perichætial leaves. 5. Lower stem leaf. 6. Upper steam leaf.

Fig. 8—Grimmia (Schistidium) cyathiformis.. 1. Capsule. 2. Operculum. 3. Perichaetial leaves. 4. Upper steam leaf. 5. Lower stem leaf. Fig. 9—Grimmia (Schistidium) alfredii. 1. Capsule. 2. Operculum. 3. Inner perichaetial leaf. 4. Outer perichaetial leaf. 5. Upper steam leaf. 6. Middle stem leaf. 7. Lower stem leaf. Fig. 10—Grimmia (Schistidium) turbinata. 1. Capsule. 2. Operculum. 3. Calyptra. 4. Inner perichaetial leaf. 5. Outer perichaetial leaf. 6. Upper steam leaf. 7. Lower stem leaf. Plate XXX. Fig. 11—Grimmia (Schistidium) argentea. 1. Capsule. 2. Operculum. 3. Calyptra. 4. Perichaetial leaves. 5. Stem leaf. Fig. 12.—Grimmia, (Schistidium) wrightii. 1. Capsule, with inner perichaetial leaf. 2. Operculum. 3. Outer perichaetial leaf. 4. Stem leaves. Fig. 13.—Grimmia, (Schistidium) laingii. 1. Capsule. 2. Perichaetial leaves. 3. Upper stem leaves. Fig. 14—Grimmia (Schistidium) gracilis.. 1. Capsule. 2. Operculum. 3. Perichaetial leaves. 4. Middle stem leaf. 5. Lower stem leaf. Fig. 15—Grimmia (Schistidium) minime-perichcetalis.. 1. Capsule. 2. Calyptra. 3. Perichaetial leaves. 4. Upper stem leaves. 5. Middle stem leaf. Plate XXXI. Fig. 16—Grimmia novce-zealandice.. 1. Capsule. 2. Operculum. 3. Perichaetial leaves. 4. Middle stem leaf. 5. Lower stem leaf. Fig. 17—Grimmia pulvinata (from British specimens). 1. Capsule. 2. Operculum. 3. Inner Perichaetial leaf. 4. Outer Perichaetial leaf. 5. Upper stem leaf. 6. Middle stem leaf. Fig. 18—Grimmia tricophylla (from specimens obtained from Germany). 1. Capsule, with Operculum. 2. Perichaetial leaves. 3. Upper stem leaf. 4. Middle stem leaf. Fig. 19—Grimmia tricophylla, var. nigra.. 1. Capsule. 2. Perichaetial leaves. 3. Upper stem leaf. 4. Middle stem leaf.

Plate XXXII. Fig. 20—Grimmia versabilis. 1. Capsule, with Operculum. 2. Perichaetial leaves. 3. Upper stem leaf. 4. Middle stem leaf. Fig. 21—Grimmia finitima. 1. Capsule, with Operculum. 2. Perichaetial leaves. 3. Outside of perichaetial leaves. 4. Upper stem leaf. 5. Middle stem leaf. Fig. 22—Grimmia rotunda. 1. Capsule, with Operculum. 2. Perichaetial leaves. 3. Stem leaves. Fig. 23—Grimmia obovata. 1. Capsule, with Operculum. 2. Perichaetial leaves. 3. Upper stem leaves. Plate XXXIII. Fig. 24—Grimmia belli. 1. Capsule, with Operculum. 2. Calyptra. 3. Inner Perichaetial leaf. 4. Upper stem leaf. 5. Middle stem leaf. 6. Lower stem leaf. Fig. 25—Grimmia flexifolia. 1. Capsule. 2. Immature capsule, with calyptra. 3. Same with calyptra removed. 4. Inner Perichaetial leaves. 5. Middle stem leaf. 6. Lower stem leaf. Fig. 26—Grimmia pusilla. 1. Capsule and operculum. 2. Inner Perichaetial leaves. 3. Outer Perichaetial leaves. 4. Upper stem leaf. 5. Middle stem leaf. Fig. 27—Grimmia diminuta. 1. Plant, with capsule. 2. Perichaetial leaves. 3. Upper stem leaves. 4. Middle stem leaves. Plate XXXIV. Fig. 28—Grimmia cockaynei. 1. Capsule, with Operculum. 2. Calyptra. 3. Perichaetial leaves. 4. Middle stem leaf. 5. Upper stem leaf. Fig. 29—Grimmia petriei. 1. Capsule. 2. Operculum. 3. Calyptra. 4. Perichaetial leaves. 5. Upper stem leaves. Fig. 30—Grimmia stevensii. 1. Capsule. 2. Operculum. 3. Calyptra. 4. Perichaetial leaves. 5. Upper stem leaves. 6. Middle stem leaves. Fig. 31—Grimmia webbi. 1. Capsule. 2. Operculum. 3. Perichaetial leaves. 4. Leaves outside of ditto. 5. Middle stem leaf. 6. Upper stem leaf.