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 288 OBSERVATIONS ON THE NATURAL FAMILY

to what I have supposed led him to separate all the three from Santolina. It is remarkable, however, that not one of these three original species of Galea corresponds with his character of the genus ; and that they in reality belong to three very distinct genera, on principles which, I conceive, Linnaeus himself would have admitted.

The flrst species, Calea jamaicensis, is the only one that even seems to agree with the generic character, in having pappus which at first sight (to the naked eye at least) might appear simply capillary, but which on a closer examination proves to be of a very different and nearly peculiar structure. Of this species I have seen only one authentic specimen, received from Browne by Ehret, and now in Sir Joseph Banks's Herbarium. The specimen in question, though incomplete, evidently belongs to the same species with " Conyza fruticosa cisti odore, floribus pal- lide purpureis, summitatibus ramulorum insidentibus/' of Sloane, 1 of which I have examined the original very perfect specimens in his Herbarium, preserved in the British Museum, 2 and am satisfied that its pappus is of the same structure as that of Calea corclifolia of Swartz, who has w r ell described it, but who has at the same time given a different io9] account of that of C. jamaicensis? These two plants are the only published species of this genus, for which the name of Calea should be retained, and which may be distin- guished by the following characters :

��Calea.

Caleae species Liniuei.

TavolvcTum^ imbricatum. Receptaculum paleaceum. Flos- culi tubulosi, uniformes, hennaphroditi. Antherae basi muticse. Stigmata acuta. Papjms paleaceus : radiis uninerviis, pinnatifido-striatis.

1 Hist. Jam. i, p. 257, tab. 151, fig. 3.

2 Herb. vol. v, fol. 14 and 15.

3 In Flor. Ind. Occid. vol. iii, p. 1328.

4 Calyx communis Linnai.

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