ORCHIS FAMILY. 453 
Economic uses: The rhizome with the rootlets, under the name of ‘nervine root,” 
is used medicinally. 
Type locality not ascertained. 
Herb. Geol. Surv. Herb. Mohr. 
Cypripedium parviflorum Salisb. Trans. Linn. Soc. 1: 77. 1791. 
SMALLER YELLOW LADY’sS SLIPPER. 
Cypripedium calceolus Michx, Fl, Bor. Am. 2: 161, 1808. Not L. 
Ell, Sk. 2:507. Gray, Man, ed.6,511. Chap. FI. 464, 
Canadian zone to Carolinian area. Newfoundland and Ontario to Saskatchewan 
aud Rocky Mountains; New England, west to Minnesota; through the Atlantic 
States to Mississippi and Arkansas. 
ALABAMA: Mountain region. Open woods and copses. Clay County, Elders, 1,000 
feet. Madison County, Montesano. Dekalb County, Lookout Mountain, 1,600 feet. 
Cullman County. Flowers yellow, fragrant. May; not frequent. 
Economie uses: The root is used like that of the last under the same name. 
Type locality: ‘‘Sponte nascentem in Virginia legit H, Marshall.” 
Herb. Geol. Surv. Herb. Mohr. 
Cypripedium acaule Ait. Hort. Kew. 3: 303, 1789. 
PURPLE LADY’s SLIPPER, MOCCASIN FLOWER. 
‘ Cypripedium humile Salish. Trans, Linn. Soc. 1:79, 1791. 
Ell. Sk.2:509. Gray, Man.ed.6,511, Chap. Fl. 464. 
Boreal region (Hudsonian zone) to the Carolinian area. Newfoundland, Nova 
Seotia and Ontario and to the arctic circle; throughout the continent east of the Mis- 
sissippi River as far south as the District of Columbia and along the mountains to 
North Carolina. 
ALABAMA: Mountain region. Shady woods, in boggy damp places. Cullman 
County, Beaver’s Mill, in boggy woods, 700 fect altitude. Dekalb County, Lookout 
Mountain, damp banks of Little River. Perianth white with purple lip. May; 
infrequent. 
Type locality: ‘Native of North America.” 
Herb. Geol. Surv. Herb. Mohr. 
ORCHIS L. Sp. P1.2:989. 17538, ORCHIS. 
About 80 species, mostly of temperate Europe and Asia, North Africa, North 
America, 3. 
Orchis spectabilis L. Sp. Pl. 2: 943, 1753. Snowy ORCHIS. 
Orchis humilis Michx. Fl. Bor. Am, 2: 155. 1803. 
El. Sk. 2:487. Gray, Man. ed. 6,506. Chap. FI. 458. 
Alleghenian and Carolinian areas. New Brunswick and Ontario; New England 
west to Minnesota, Dakota, and Nebraska, south to the Ohio Valley, Missouri, and 
Arkansas, and along the mountains to Georgia. 
ALABAMA: Mountain region. Rich woods, Madison County, Montesano, 1,500 
feet. Flowers rose red. May; rare. 
Type locality: ‘Hab. in Virgima, D. Gronovius.” 
Herb. Geol. Surv. Herb. Mohr. 
HABENARIA Willd. Sp. Pl. 4:44. 1805, 
(PLATANTHERA Rich. Ann. Mus. Par. 4:48. 1808.) 
Four hundred and fifty to 500 species, perennials, widely distributed over tem- 
perate and warmer regions, chiefly Asia, Europe, America, North America, 35 to 
40 species; Eastern North America, 20, 
Habenaria clavellata (Michx.) Spreng. Syst. 3: 689. 1826. 
SMALL GREEN WoobD ORCHIS, 
Orchis clavellata Michx. Fl, Bor. Am. 2: 155, 18038. 
O. tridentata Willd. Sp. Pl. 4:41. 1805, 
Habenaria tridentata Hook. Exot. Fl. 2:4.87. 1825. 
EI. Sk. 2:486. Gray, Man. ed. 6,506. Chap, FI, 459. 
Canadian zone to Louisianian area. Newfoundland, Quebec, Ontario; New England 
west to Minnesota, Missouri, and Arkansas; southern New Jersey to western Florida 
and Mississippi. 
ALABAMA: Metamorphic hills. Central Pine belt to Coast plain. Shaded boggy 
woods. Lee County, Auburn (J. 8. Larle). Tuscaloosa County, Vance’s Station. 
Montgomery County, Pentulalla Creek. Escambia County, Wilson’s Station. Mon- 
