804 ORCHIDEZ. 
99. ARETHUSA. 
Arethusa, Linn. Gen. Plant. n. 1014; Benth. et Hook. Gen. Plant. iii. p. 614. 
A genus of three described species, whereof one is a native of Japan, one of eastern 
North America, and the third of Mexico and Guatemala. 
1. Arethusa rosea, Benth. in Journ. Linn. Soc. Lond. xviii. p. 348. 
Crybe rosea, Lindl. Gen. & Sp. Orch. Pl. p. 425; Bot. Reg. t. 1872; Rechb. f. Beitr. Orch. Centr.- 
Am. pp. 11 et 68. 
Bletia purpurata, A. Rich. et Gal. in Ann. Sc. Nat. série 3, ili. p. 23, ex Rchb.f. in Walp. Ann. 
vi. p. 445. 
Mexico (Galeotti); GuaTeMaLa, ravines (Skinner; Warscewicz; Wendland). Ub. 
Kew. 
| 100. POGONTA. 
Pogonia, Juss. Gen. Plant. p. 65; Benth. et Hook. Gen. Plant. iii. p. 615. 
Upwards of thirty species of this genus have been described, and they are very 
widely diffused in both hemispheres. 
1. Pogonia rosea, Hemsley. 
Cleistes rosea, Lindl. Gen. & Sp. Orch. Pl. p. 410; Griseb. Fl. Brit. W. Ind. p. 636. 
Panama ( Duchassaing).—Co.LomBia to GUIANA and in the West Inpizs. 
2. Pogonia, sp. ? 
NortH Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer). 
Hb. Kew. 
101. EPIPACTIS. 
Epipactis, R. Br. in Ait. Hort. Kew. ed. 2, v. p. 201, pro parte; Benth. et Hook. Gen. Plant. iii, 
p. 619. 
Ten species have been published, and they are generally diffused in Temperate 
Europe, Asia, and North America. 
1. Epipactis gigantea, Dougl. in Hook. Fl. Bor.-Am. ii. p. 202, t. 202; Wats. 
Bot. Calif. ii. p. 137. 
Epipactis americana, Lindl. in Ann. Nat. Hist. iv. p. 385, et Gen. & Sp. Orch. Pl. p. 462. 
From Wasuineton TERrirory to CALIFORNIA and Western Texas.—Sours Mexico, at 
the falls of the Rio del Salto (Hartweg). Ub. Kew. 
Tribe TV. OPHRYDE. 
Ophrydee, Benth. et Hook. Gen. Plant. iii. pp. 464 et 485. 
102. HABENARIA. 
Habenaria, Willd. Sp. Plant. iv. p. 44; Benth. et Hook. Gen. Plant. iii. p. 624. 
As restricted by Bentham and Hooker, this is the most widely diffused genus of 
