Transactions of the Royal Society of New Zealand . 1906, p. 1137) discovered one specimen withyellow flowers, those of the type being dark crimson, at RangaunuHarbour, northern Auckland. * Because 1 use these garden names it must not be concluded that I consider theplants of the same biological class as Linnean species, or even elementary species. 11 am indebted to Mr. J. OMalley, of Otira, for calling my attention to the latter plant. Cockayne.—Ecological Studies in Evolution. 11 11. Rubus Barkeri Cockayne. This is a presumably non-flowering species (see Cockayne, 1910, p. 325) ;at any rate,
Transactions of the Royal Society of New Zealand . 1906, p. 1137) discovered one specimen withyellow flowers, those of the type being dark crimson, at RangaunuHarbour, northern Auckland. * Because 1 use these garden names it must not be concluded that I consider theplants of the same biological class as Linnean species, or even elementary species. 11 am indebted to Mr. J. OMalley, of Otira, for calling my attention to the latter plant. Cockayne.—Ecological Studies in Evolution. 11 11. Rubus Barkeri Cockayne. This is a presumably non-flowering species (see Cockayne, 1910, p. 325) ;at any rate, cuttings from an adult plant growing luxuriantly and undermost varied conditions for a period of thirteen years have never this as it may, the plant in question, although closely related to R. parvusBuchanan, differs from that species in its trifoliate leaves with lanceolate*leaflets and not simple linear leaves, its serrate and not dentate leaf-margins,its different autumnal colouring and its greater size in all parts (see fig. 1).. Fig. -Outline of Leaf of (a) Rubus Barkeri, (b) R. parvus. Only one plant was originally noted. Recently I have seen abundance ofRubus parvus in various localities in Westland and under different condi-tions, but it is remarkably constant in characters, and presented no transi-tions towards R. Barkeri. I know well that my action in creating ataxonomic species in this case is open to adverse criticism, especially asI believe that the original wild plant may be the only one in existence ; butif a species can originate by mutation there must be a time when there isonly one individual, and if so, and its characteristic marks are of specific importance, it is just as much a species as if there were thousands ofsimilar individuals. * So defined in original description, but leaflets in fig. 1 are broader. 12 Transactions. 12. Veronica Benthami Hook, f., form with white flowers. V. Benthami is a shrub of straggling habit endemic in the Auckla
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