Britton : Studies of West Indian plants 343 



Gonaives to La Hotte Rochee on road to Terre Neuve {Geo. 

 V. Nash & Norman Taylor, August 12, 1905, no. 1559). 



4. PASSIFLORA CILIATA Ait. 



This species was described in 1789 (Hort. Kew. 1 : 310) from 

 plants cultivated by Mrs. Norman, who introduced it into England 



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the latter part of the preceding summer with great profusion of 

 flowers in several collections, and the figure given by him at this 

 place was made from a plant in the collection of Mr. Vere. 



This beautiful passion-flower seems to have been much mis- 

 understood by subsequent botanists. It appears to be confined 

 naturally to the island of Jamaica, where Mrs. Britton found it in 

 March, 1908, in quantities along roadsides through the hills near 

 Bulstrode, parish of Westmoreland, growing with P. foctida. 



The plant has been supposed to be a variety of P. foctida, and 

 has been so ranked by a number of authors. Grisebach, in Flora 

 of the British West Indies, however, regarded it as specifically dis- 

 tinct, but apparently erred in attributing it to the Bahamas as well 

 as to Jamaica. It has not been found in the Bahamas during any 

 of our extensive explorations of that archipelago. So far as one 

 can see, Grisebach was quite justified in maintaining it as a species 

 distinct from P. foctida. 



5. BIDENS PILOSA L. 



This species was founded by Linnaeus (Sp. PL 832) fa 1753 on 

 the "Bidens latifolia hirsutior semine angustiore radiato" of Dil- 



lenius Hort. Eltham. 51. pi. 43. f 5/. The name has since been 

 used by many authors for a very common and well-known tropical 

 weed and often with the remark that it is not pilose. Dr. Gray 

 surmised that the figure of Dillenius might really have been made 

 fr om a plant of B. frondosa. During repeated trips to the West 

 indies I have looked closely at a great many individuals of this 

 ^edy plant but never could find any pilose ones until this spring ; 

 the species is usually almost or quite without trichomes. But at 

 Moneague, Parish of St. Ann's, Jamaica, in April, 1908, I noticed 



