ORCHIDACEiE. (OUCHlii FAMILV.^ 341 



C Goodyera. Like the last, but lip saccate, entire, without caUoijltle« and frt* fn>ra 

 the column. Leaves all radical, wliite-ieticulatcd. 



7. Listera. Perianth spreading. Lip Hat, 2-lobed. Stcin low, with a pair of broiul m*. 



sile leaves in the middle. 



8. £plpacti8. reriantli spreading and ovary recurved. Lij. Homowhut jolnlwl iu the 



middle, concave and auriculate at base, dilated aliove. Hlvin hafy, hlouL 



Tribe IV. Perfect anthers 2, lateral, the sterile one forming a dilaleU flenhy n]i|>c»daj{e 

 above the terminal stigma ; pollen pulpy-grauuLir. 



9. Cypripediuiu. Perianth spreoduig. Lip an iuflatod sac. titeiuH leafy, UsariOt,- ouo 



or a few showy flowers. 



1. CALYPSO, Salisb. 



Petals and sepals asceuding, similar aiul nearly equal ; lip with two sbrrt 

 spurs below the apex. Column petaloid, oval and concavo. Lower pair of 

 pollen-masses smaller, compressed. — A low herl), in bui^s, witii showy tiowfrH, 

 a scaly-sheathed stem, and a single radical broad tliin loaf. 



1. C. borealis, Salisb. Stem 3 to 6 inches high, with 2 or 3 membrana- 

 ceous brownish green sheaths, and a linear acuminate bract at tlio summit: 

 the radical leaf broadly ovate or slightly cordate: flower drooping: .«.«'p:il.H 

 and petals ligho rose-color; lip usually longer, brownish-pink mottletl with pur- 

 ple, the edge margined at the apex and bifid or entire, about equalling llje 

 tooth-like spurs and with a tuft of yellow hairs at base. — From Colorado to 

 Oregon and British America ; thence eastward to the North Atlantic States. 



2. CORALLORHIZA, HaUer. Coral-root. 



Petals and sepals ascending, similar and nearly equal, but the latonil sepals 

 oblique at base and either decurrent in a short spur adnato to tho sido of the 

 ovary, or forming a projecting gibbosity above it. Column narrowly mar- 

 gined, broader at base, somewhat incurved. — Without green horbagp, the 

 solitary scape with 2 to 4 membranaceous sheaths, and boaring a simjtlc raceme 

 of brownish, yellowish, or purple flowers: pedicels reflcxcd in fruit. 



* Spur present: lip 3-lobed : flowers small, i/elloivish-fjreen or w/iltish, n/?< h tiiujed 

 or mottled icith purple. 



1. C. multiflora, Xutt. Scape a foot or two high, many-flowered : 

 sepals and petals 3-nerved ; spur manifest, but irholli/ adnate to the onin/ : Up 

 nearhj sessile, 3-lobed bij a deep cleft on ea^-h side, the middle one n>uiid(Ml or 

 emarginate, with undulate or denticulate margin : rapsidr fi to 9 tinrs loiu/, 

 narrowed to a short rather stout pedicel. — Across the contincMit in north tem- 

 perate latitudes, and in the Rocky Mountains .southward to tin- Wasatch ;uid 

 Coloi'adu. 



2. C. mnata, li. Br Scape slender, 4 to 10 inches high, 3 to l5flowcrcd : 

 sepals and petals l-nened ; spur vtrtj short ; Up sumea-hat 3-lubid bif a iuttral 

 cleft, abruptlij attenuate lo the base; coluum stout, constricted iu the middle: 

 capsule 2 to -l lines lon<j, abruptly narrowed to a short vtry sUud>r jH-diccl — 

 From Colorado to Washington, and ihenco eastward to Canada and the 

 Atlantic States, and northward to the Arctic regions. 



