Transactions of the Royal Society of New Zealand . Fig. 1.—Sophora tree of Chatham Island form growing erect with straight Fig. 2.—Sophora of Chatham Island form. Cockayne.—Ecological Studies in Evolution. 23 of plants of this class may grow side by side belonging to the genera Dacry-dium, Podocarpus (Taxac), Leptospermum (Myrtac), Styphelia (Epacrid.),Coprosma (Rubiac), Veronica (Scrophular.), and Celmisia (Compos.). Insome cases the prostrate form is here hereditary, while in others it is unfixedand depends merely upon the station. The combina


Transactions of the Royal Society of New Zealand . Fig. 1.—Sophora tree of Chatham Island form growing erect with straight Fig. 2.—Sophora of Chatham Island form. Cockayne.—Ecological Studies in Evolution. 23 of plants of this class may grow side by side belonging to the genera Dacry-dium, Podocarpus (Taxac), Leptospermum (Myrtac), Styphelia (Epacrid.),Coprosma (Rubiac), Veronica (Scrophular.), and Celmisia (Compos.). Insome cases the prostrate form is here hereditary, while in others it is unfixedand depends merely upon the station. The combination of species forming the shrub steppe on the subalpinevolcanic plateau, North Island, contains a considerable percentage ofprostrate shrubs, some of which are more or less erect under less xero-phytic conditions. Coastal rocks favour the prostrate form. Thus in such a situationnear Island Bay, Wellington, there are Hymenanthera crassifolia Hook. f.(more or less hereditary), Coprosma Baueri Endl. (hereditary when juvenile).Veronica macroura Hook. f. var.* (perhaps hereditary when juvenile buterect when adult). Other veronicas of coastal r


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectscience, bookyear1911