ORCHIDEA. 209 
leaves so characteristic of this species, and which suggested the generic name. The 
species from Jamaica may be A. gigantewm, Hartweg. 
8. OCTOMERIA. 
Octomeria, R. Br. in Ait. Hort. Kew. ed. 2, v. p. 211; Benth. et Hook. Gen. Plant. iii. p. 493. 
About ten species, inhabiting Tropical America, from the West Indies to Brazil. 
1. Octomeria, sp. . 
Nicaraeua (Tate, 456). Hb. Kew. 
9. METIRACYLLIUM. 
Meiracyllium, Rehb. f. Xenia Orch. i. p. 12; Benth. et Hook. Gen. Plant. iii. p. 493. 
The following are all the published species. 
1. Meiracyllium gemma, Rchb. f. in Gard. Chron. 1869, p. 988; Xenia Orch. 
iii. p. 13, t. 209. 
NortH Mexico, Sierra Madre (Roezl). Cultivated specimens only in Kew her- 
barium. 
2. Meiracyllium trinasutum, Rchb. f. Xenia Orch. i. p. 12, t. 6; Walp. Ann. 
vi. p. 859; Beitr. Orch. Centr.-Am. p. 73. 
GUATEMALA, without locality (Wendland), Mazatenango (Bernoulli, 372). Hb. 
Kew. 
3. Meiracyllium wendlandi, Rchb. f. Beitr. Orch. Centr.-Am. p. 73. 
GuaTEMALA, Rio Sucio (Wendland). 
10. MICROSTYLIS. 
Microstylis, Nutt. Gen. N. Am. Pl. ii. p. 196; Benth. et Hook. Gen. Plant. iii. p. 494. 
A genus of about forty species, widely dispersed in the northern hemisphere, with 
two or three in South America. They are most numerous in Asia and Central 
America. 
1. Microstylis brachystachys, Rchb. f. in Linnea, xxii. p. 834; Walp. Ann. 
lil. p. 526. 
South Mexico, Real del Monte (Ehrenberg). 
2. Microstylis cordata, Rchb. f. in Walp. Ann. vi. p. 207. 
Dienia cordata, Lindl. in Bot. Reg. 1838, Mise. p. 73. 
Mexico, imported and cultivated by Mr. Barker. 
3. Microstylis crispata, Rchb. f. in Walp. Ann. ‘vi. p. 207. 
Dienia crispata, Lindl. in Ann. Nat. Hist. xv. 1845, p. 385. 
Mexico, without locality (Hartweg). Hb. Kew. 
BIOL. CENTR.-AMER., Bot. Vol. III., November 1883. 2e 
