[The Editor will be obliged if authors and other users of the index will notify him of any errors or omissions discovered, or make any suggestions for improvements.] Abbotsford, Pleistocene glaciation (Park), 599. abdita, Epichorista. abditus, Crambus. Abendanon, E. C., Aequinoctia region (Benson), 106. Abies pectinata DC., host of Pucciniastrum pustulatum (Cunningham), 30. Abieti-Chamaenerii, Pucciniastrum. Abrotanella forsterioides Hook. f., host of Aecidium monocystis (Cunningham), 47. abruptus, Conus. Acacia sp., host of Uredo Acaciae (Cunningham), 47. Acaciae, Uredo. Acaena microphylla Hook. f., host of Phragmidium Acaenae (Cunningham), 18. — novae-zelandiae T. Kirk, host of Phragmidium novae-zelandiae (Cunningham), 19. — — var. pallida T. Kirk, host of Phragmidium Potentillae (Cunningham), 20. — ovina A. Cunn., host of Phragmidium Potentillae (Cunningham), 20. — Sanguisorbae Vahl., host of Phragmidium Potentillae (Cunningham), 19. — — host of Phragmidium subsimile (Cunningham), 21. — — var. pilosa T. Kirk, host of Phragmidium subsimile (Cunningham), 21. Acaenae, Phragmidium. acanthocarpa, Aglaophenia. acanthostoma, Stereotheca. “Acheron,” time-signals (Baillie), 705. acinaces, Zenatia. Aciphylla squarrosa, tumatakuru in north (Rangi Hiroa), 357. Acirsella oamarutica (Sut.), occ. Pukeuri (Finlay), 508. — — variable form (Finlay), 508. Acrocercops zorionella Huds., not Parectopa (Meyrick), 204. Actaeae-Agropyri, Puccinia. Actaeae-Elymi, Puccinia. Actaeon praecursorius Sut., occ. Ardgowan (Finlay), 509; Awamoa, 510. Acteonella, occ. (Benson), 121. Actinacis sumatraensis, occ. (Benson), 116. acuminata, Struthiolaria. acuminatus, Otolithus (Pleuronectidarum). acutissima, Hamaspora. Adams, C. E., research grant, 1923. 790. Adams, J., ferns of Te Aroha and Te Moehau Mts., 88. Adamsii, Dracophyllum. Adelbert, Range, geol. (Benson), 117. adhaerens, Stenothoe. Admete anomala M. & M., congen. with Ptychatractus pukeuriensis Sut. (Finlay), 501. — maorium Marsh. & Murd., occ. Target Gully (Finlay), 496. — — is Merica n. sp. of Suter (Finlay), 496. — — possibly a Sveltella (Finlay), 501. — suteri Marsh. & Murd., occ. Target Gully (Finlay), 496. — — is Merica n. sp. of Suter (Finlay), 496. — — Neozel. repres. of Aust. Cancellaria (Finlay), 501. — — type of Oamaruia (Finlay), 514. Admiralty Islds., geol. (Benson), 120. adspersa, Puccinia. adusta, Verconella. Aecidium Persoon, characteristics (Cunningham), 32. — Anisotomes Reich., occ. (Cunningham), 46. — Aquilegiae Pers., syn., 1. — Celmisiae-discoloris n. form-sp., with fig. and pl. (Cunningham), 37, 52. — — in key (Cunningham), 33. — Celmisiae-petiolatae n. form-sp., with fig. and pl. (Cunningham), 37, 52. — — in key (Cunningham), 33. — Celmisiae-Petriei n. form-sp., with fig. and pl. (Cunningham), 38, 53. — — in key (Cunningham), 33. — Clematidis DC., syn., 1. — Discariae Cke. belongs to cycle of Uromyces Discariae (Cunningham), 47. — disseminatum Berk. not the uredo of Melampsora Kusanoi (Cunningham), 27. — — occ. (Cunningham), 47. — hupiro n. form-sp., with fig. and pl. (Cunningham), 36, 53. — — in key (Cunningham), 33. — kowhai n. form-sp., with fig. and pl. (Cunningham), 35, 53. — — hab. (Cunningham), 392. — — in key (Cunningham), 33. — Laricis Kleb., syn., 29. — Macrodontae n. form-sp., with fig. and pl. (Cunningham), 38, 53. — — in key (Cunningham), 33. — Milleri n. form-sp., with fig. and pl. (Cunningham), 35, 54. — — in key (Cunningham), 33. — monocystis Berk., occ. (Cunningham), 47. — Myopori n. form-sp., with fig. and pl. (Cunningham), 35, 54. — — in key (Cunningham), 33.