108 Mr. Brown's Observations on the 



Browne had doubtfully referred to the same genus, though fur- 

 nished with pappus, agreeing with the others in having opposite 

 leaves. 



But the difterence in habit between all these plants and the 

 original species of Santolina is so great, that it probabl}' after- 

 wards determined Linneus to remove them from that genus ; and 

 liUhough he found a sufficient generic character in the pappus 

 o\' Calea Jamaicensis on]y, he united with it the two other species, 

 for a reason perhaps similar 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 Calea corresponds 

 with his character of the genus ; and that they in reality belong 

 to three very distinct genera, on principles which, I conceive, 

 Linneus himself would have admitted. 



Thejirst species, Calea jamaicensis, is the only dne that even 

 seems to agree with the generic character, in having pappus 

 which at first sight (to the naked eye at least) might appear sim- 

 ply capillary, but which on a closer examination proves to be of 

 a very different and nearVy 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 speci- 

 men in question, though incomplete, evidently belongs to the 

 same species with "Conyza fruticosa cisti odore, tloribus pallide 

 purpureis, summitatibus ramulorum insidentibus," of Sloane*, of 

 which I have examined the original very perfect specimens in his 

 Herbarium, preserved in the British Museum-j-, and am satisfied 

 that its pappus is of the same structure as that oi Calea cordifolia 

 ofSwartz, who has well described it, but who has at the same 

 time given a different account of that of C.jamaicensisX- 'J hese 



* Hist. Jam. i. p. 257. tab. 151. fig. 3. f Herb. vol. v. fol. 14 & 15. 



X In Flor. Ind. Occid. vol. iii. p. 1328. 



two 



