308 ORCHIDEZ. 
8. Selenipedium longifolium, Rchb. f. et Warsc. Xenia Orch. i. p. 3 et Beitr. 
Orch. Centr.-Am. p. 44. | 
Cypripedium longifolium, Rehb. f. et Warsc. in Bot. Zeit. 1852, p. 690; Bot. Mag. t. 5970. 
Costa Rica (Endres); Panama, Cordillera of Chiriqui at 5000 to 8000 feet ( Warsce- 
wicz). Hb. Kew. 
Series II. EPIGYN. 
Order CXLI. SCITAMINE. 
Scitaminee, Benth. et Hook. Gen. Plant. i. p. 636. 
This Order is almost exclusively confined to tropical regions, where it is generally 
diffused. There are thirty-seven genera, comprising about 450 species. 
Tribe I. ZINGIBERE. 
Zingiberee, Benth. et Hook. Gen. Plant. iii. pp. 637 et 639. 
Of the twenty-one genera belonging to this tribe only two are represented in America. 
1. COSTUS. 
Costus, Linn. Gen. Plant. n. 3; Benth. et Hook. Gen. Plant. iii. p. 646. 
A genus of about twenty-five species, spread over Tropical Asia, Africa, America, and 
Australia. 
1. Costus hirsutus, Presl, Reliq. Heenk. i. p.112; Horan. Prodr. Monogr. Scit. 
p. 37. 
Mexico (Henke). 
A specimen in Kew herbarium, named C. spicatus, Swartz, gathered in Yucatan or 
Tabasco (E. P. Johnson, 132), may be this species. 
2. Costus pictus, D. Don, in Bot. Reg. t. 1594; Horan. Prodr. Monogr. Scit. 
p- 37. 
Mexico (Deppe). 
8. Costus pulverulentus, Presl, Reliq. Henk. i. p.111; Horan. Prodr. Monogr. 
Scit. p. 37. 
Mexico (Henke). 
4, Costus spicatus, Swartz, Fl. Ind. Occ. p. 6; Rose. Scit.t. 77; Horan. Prodr. 
Monogr. Scit. p. 37. ; 
South Mexico, valley of Cordova (Bourgeau, 2098)% Hb. Kew. 
Our plant may or may not be the true C. spicatus, which is accredited with a wide 
area of distribution in the West Indies and South America. 
