[123]

(11)

p. 432 In Cnestis the Connaraceæ, the genera differ in having one or more ovaria, in the existence or absence of albumen & in the imbricata, or valvular æstivation of calyx. Any one of these characters singly, is frequently of more than generic importance, though here even other when all taken together, they appear insufficient to separate Cnestis from Connarus. (In such cases descent would account for important diversities in allied families,

[in margin:] R. Brown. Appendix to Tuckeys Congo Voyage

[123v]

but I am far from pretending that where allied families, differ, as is usual in some such or equally important characters, that they have descended from a group of genera, related in the peculiar manner as Cnestis & Connarus Far more probable, effects of other changes.—

[Origin, p. 415: "Robert Brown, who in speaking of certain organs in the Proteaceæ, says their generic importance, "like that of all their parts, not only in this but, as I apprehend, in every natural family, is very unequal, and in some cases seems to be entirely lost." Again in another work he says, the genera of the Connaraceæ 'differ in having one or more ovaria, in the existence or absence of albumen, in the imbricate or valvular æstivation. Any one of these characters singly is frequently of more than generic importance, though here even when all taken together they appear insufficient to separate Cnestis from Connarus.'"]