Trinidad on the basis of one collection: Othmer 121. It 
appears to be not infrequent at Chacachacare, as shown 
by the material cited below. 
Trintpap: Chacachacare, April 18, 1865 (Herb. Trin. 1972); May 
23, 1908, Evans s.n. (Herb. Ames 10683, 10684, 10685); Chacacha- 
care, May 18, 1916, Doyle s.n. (Herb. Trin. 8121); Chacachacare, 
May 1925, Williams s.n. (Herb. Trin. 11059). 
Diacrium Bentham 
Diacrium indivisum (Bradf.) Broadway in Bull. 
Mise. Inform. Trinid. 2 (1895) 79. 
Epidendrum indivisum Bradford in Grisebach FI. Br. 
W. Ind. Isl. (1864) 614. 
Diacrium bicornutum (Hook.) Bentham var. indivisum 
(Bradf.) Cogniaux in Martius FI. Bras. 8, pt. 5 (1898) 
188. 
There has been some difference of opinion as to whether 
this concept should be treated as a variety of Diacrium 
bicornutum or as a distinct species. There seems to be 
sufficient morphological evidence to maintain it as dis- 
tinct, and the extreme difference in choice of habitat of 
Diacrium bicornutum and D. indivisum would seem to 
support such a disposition. After studying living mate- 
rial with perfect flowers, Rolfe (in Orch. Rev. 11 (1908) 
187) presented the evidence for maintaining the two con- 
cepts as distinct. Cogniaux, nevertheless, preferred the 
varietal treatment. 
Cogniaux cited one collection—the ty pe—from Trini- 
dad. Apparently an endemic, Diacrium indivisum is now 
known from a number of localities on the island. 
It will be of interest here to quote the field notes of 
the experienced orchid-collector, Mr. Broadway (in Orch. 
Rev. 34 (1926) 131), concerning the habitats of these two 
orchids: ‘‘Diacrium bicornutum. Along wind-swept sea- 
coast districts is the real home of D. bicornutum Benth., 
[184 | 
