234 COMMON CANADIAK WILD PLANTS. 



IS. CORAXLORHI'ZA, Haller. Cohal-root. 



1. C. inna'ta, E. Br. Flowers small ; the lip whitish or 

 purplish, often crimson-spotted, 3-lobed above the base. 

 Spur very small. Stem slender, brownish-yeUow, with a 

 few-flowered spike. — Swamps. 



2. C. multiflo'ra, Nutt. Spike many-flowered. Stem 

 purplish, stout. Lip deeply 3-lobed. Spur more prominent 

 than in No. 1. — ^Dry woods. 



3. C. Maerse'i, Gray. {C. striata, Lindl., in Macoun's 

 Catalogue.) Spike crowded, of numerous large flowers, all 

 the parts of the perianth strikingly marked with 3 dark lines. 

 Lip not lobed. Spur none, but the base of the perianth 

 gibbous. — Eich woods ; not common. 



14. APIiEC'TRim, Nutt. PUTTY-KOOT. ADAM-AND-EvE. 



A. hyema'le, Nutt. Scape a foot high. Perianth green- 

 ish-brown. — Rich mould in woods. 



15. CYPRIPE'DIUM, L. LADY'S SLIPPER. MOCCASDl-FLOWER. 



* 27ie three sepals separate. 



1. C. arieti'num, E.. Br. (Eam's-hbad Lady's Slipper.) 

 The smallest species. Stem slender, 6-10 inches high, leafy. 

 Leaves 3 or 4, elliptical-lanceolate, nearly smooth. Lip only 

 half an inch, red and whitish veiny, prolonged at the apex 

 into a deflexed point. — Swamps ; rare. 



* * Two sepals united into one piece under the lip. 



2. C. parviflo'rum, Salisb. (Smaller Yellow Lady's 

 Slipper.) Stem leafy to the top, 1-3-flowered. Lip yellow, 

 flattish above, rather less than an inch long. Sepals and 

 petals wavy-twisted, brownish, pointed, longer than the lip. 

 — Bogs and wet woods. 



3. C. pubes'eens, Willd. (Larger Yellow L. ) Lip flat- 

 tened laterally, rounded above, larger than No. 2, but the 

 two species are not sufficiently distinct. 



4. C. speeta'bile, Swartz. (Showy L.) Lip very large, 

 white, pinkish in front. Sepals and petals rounded, vnhite, 

 not longer than the lip. — Bogs. 



