Breeding Systems in New Zealand Species of Epilobium L. By W. B. Brockie [Received by the Editor, October 1, 1958.] Abstract The flower parts of nearly every species of New Zealand Epilobium have been visually examined and their relative positions observed, especially those of anthers and stigma. The difference in time between stigma and anther ripening, between flower opening and anther dehiscence, and the various responses to environmental conditions were noted. It is concluded from these observations that all the species are probably very preponderantly self-fertilised, with the exception of E. chloraefolium var. kaikourense and E. chionanthum. Garden. experiments in hybridising the various New Zealand species of Epilobium afforded an opportunity to examine factors controlling their pollination. The observations were confined to the progeny of only one or a few randomly collected plants of each species with the exception of E. chloraefolium var. kaikourense. Where more than one local form of a species was examined appreciable differences in their floral parts were sometimes noted. As similar diversity probably exists in most of the species, the following notes are intended to apply only to the local form of the species listed below. E. alsinoides A. Cunn., Gouland Downs, W.6.* W., white flowers; R, rose pink; P, purple. Numeral indicates approximate average diameter of flower in mm. Old Man Range, W.7. billardierianum Ser., North of Porirua Harbour, P.8. brevipes Hook. f. Mt. Terako, W.15. chionanthum Haussk., Swampy Hill, Dunedin, W.20. chloraefolium Haussk., Kakanui Mts., W.15. Arthur's Pass, W.15. var. kaikourense Cockayne, Mt. Fyffe, R.25. (Usually W.) cinereum A. Rich., Mason River, P.7. Molesworth Station, P.8. cockaynianum Petrie, Mt. Egmont, W.12. confertifolium Hook. f., Campbell Is., R.7. Auckland Is., R.7. crassum Hook. f., Mt. Torlesse, R.10. erectum Petrie, Dunedin, P.10 Lake Lyndon, P.10. erubescens Haussk., Arthur's Pass, W.12. Mt. Wakefield, W.12. glabellum Forst., Pencarrow Head, W.10. gracilipes T. Kirk, Gouland Downs, W.9. Castle Hill, W.11. hectori Haussk., Molesworth Station, W.10. insulare Haussk., near Pencarrow Head, W.8. linnaeoides Hook. f., Mt. Peel, N. W.Nelson, W.8. macropus Hook., Takatimu Mts., W.12. melanocaulon Hook., Temple River, W.10. microphyllum A. Rich., Hope River, W.7. nerterioides A. Cunn., Lake Tekapo, W.4. nummularifolium R. Cunn., Wellington, W.5. pallidiflorum Soland., North of Porirua Harbour, W.25. pedunculare A. Cunn. var. brunnescens Cockayne, Gouland Downs, W.7. var. viride Cockayne, South Makara Stream, W.7. pernitens Cockayne and Allan, Tararua Mts., W.13. Olivine Range, W.8. pictum Petrie, Kakanui Mts., W.6.