WOOTON AND STANDLEY FLORA OF NEW MEXICO. 149 



KEY TO THE GENERA. 



Anthers 2; lip a large inflated sack. .7? 1. Cypripedium (p. 149). 



Anthers only one; lip various in different genera. 



Flowers solitary, scapose 2. Cytherea (p. 150). 



Flowers several, racemose or spicate. 



Plants without green leaves; stems glandular- 

 pubescent 3. COHALLORHIZA (p. 150). 



Plants with green leaves; stems not glandular 

 (except in Peramium), usually glabrous. 



Leaves rosu late; stems very short 4. Peramium (p. L50). 



Leaves not rosulate, scattered along the 

 stems; stems 10 cm. long or more. 

 Leaves 1 or 2. 



Leaves 1, elliptic to oval; racemes 

 many-flowered; flowers ma- 

 roon or green 5. ACHROAN'THKS (]>. 151). 



Leaves 2, opposite, renifoim; ra- 

 cemes laxly few-flowered ; 



flowers greenish 6. Ophrys(j>. 152). 



Leaves several. 



Inflorescence loosely racemose; 

 flowers few, large, 25 to 35 



mm. long; capsules reflexed. 7. Epipactis (p. 152). 

 Inflorescence spicate, strict; flowers 

 numerous, small, 10 to 18 

 mm. long; capsules erect. 

 Spikes twisted; spur wanting.. 10. Ibidium (p. 154). 

 Spikes not twisted; spur 

 present. 

 Lip bifid; bracts of in- 

 florescence very 



conspicuous 8. Coeloglossum (p L52). 



Lip entire; bracts of in- 

 florescence usually 

 not very conspicu- 

 ous 9. Limnorchis (p L52 



fioi 



Broad-leaved plants arising from thickened fascii led roots; flowers usually solitary, 

 i. n long peduncles, showy, brighl yellow, with purple spots on the saccate lower petal. 



1. Cypripedium vegamim Cockerel] A: Barker, Proc, Biol. Soc. Washington 14: 

 178. 1901. 



Type locality: Sapello Canyon, Las Vegas Range, New Mexico. 



Range: Mountains of northern New Mexico ami southern Colorado 



Nbw Mexico: Santa Pe and Las Vegas mountain ; Mogollon Mountains; < Jloudcroft. 

 Damp woods, in the Canadian and Budsonian zon< 



Tin' dried specimens from New Mexico agree with Colorado material collected l>y 

 Baker and by Coulter and referred to C. pubescent WilM , bul these are slightly 

 differenl from ( '. pubucena materia] from 1 1 » * - Eastern States. It is likely that the plant 

 of iln- Rocky Mountains is c. veganum. 



Thf spe< Lmen in the National Museum deposited by Profe sor «'<" kerell di 

 with his description in two particulars: neither \> ave nor temi a bul i»'tli 



1. CYPRIPEDIUM L. I.ai.v's-suppf.r. = L ' ^^J^ 



