QRCHIDACEJB. 345 



Moist woods. Can. to Virg. May, June. 7].. Root coraloid or branching 

 with tooth-like processes. Scape 68 inches high, with 3 or 4 membranous 

 leafless sheaths, having a purplish color. Flowers 5 12 in a short spike, small, 

 distant, dull-purple. Lip nearly white, mostly without spots. Spur nearly 

 wanting. According to Sir W. Hooker and Dr. Torrey, our plant is identical 

 with the foreign C. irmata. Vernal Coral-root. 



2. C. odontorhiza Nutt. : scape few-flowered ; lip oval or obovate, cre- 

 nulate and waved ; spur obsolete, adnate ; capsule nearly globose. Cym- 

 bidium odontorhizon WUld. Ophrys Corallorhiza Mich. 



Roots of trees. Ver. to Car. Aug., Sept. %. Root coraloid. Scape 8 10 

 inches high, a little enlarged at the base, with 2 3 sheaths. Flowers 10 12 in 

 a terminal pendulous raceme, purplish and tawney. Lip dilated, obovate, white 

 spotted with purple. Spur entirely wanting. Small Late Coral-root. 



3. C. multiflora, Nutt. : scape many-flowered ; lip wedge form-oval, spot- 

 ted, 3-lobed, the middle lobe broad recurved : spur conspicuous, adnate ; 

 capsule elliptic-obovoid. C. innata Nutt. Gen. 



Roots of tree. Can. to Car. July Sept. QJ.. Root coraloid, much branched. 

 Scape a foot high, with 34 sheaths, purplish. Flowers 10 30, in a terminal 

 raceme, larger than in either of the preceding, purplish-brown. Lip whitish 

 spotted with purple. Spur distinct, brownish. Large Coral-root. 



5. APLECTRUM. Nutt. Putty-Root. 

 (From the Greek a, without, and TrXevrpai/, a spur.) 



Perianth with the segments distinct, nearly equal. Lip un- 

 guiculate, not produced at the base. Column free. Anther sit- 

 uated a little below the summit of the column. Pollen-masses 

 4, oblique, lenticular. 



A. hyemale Nutt. Cymbidium hyemale Willd. 



Shady woods. Can. to Flor. W. to Ark. May, June. 1}- Root with 2 4 

 subglobose tubers. Scape about a foot high, with 3 loose sheaths, purplish. 

 Leaf solitary, 4 6 inches long, elliptic, acute at each end, nerved, on a petiole 

 2 3 inches long, which is inserted on the summit of the tuber. Flowers brown- 

 ish, in a terminal bracteate raceme. Lip 3-lobed, obtuse, the middle lobe crenu- 

 late on the margin. Adam and Eve. Putty-root. 



II. VANDKE. Pollen cohering in waxy masses, with a distinct cau- 

 dicle united to a stigmatic gland. Anther terminal, rarely dorsal. 



6. T1PULARIA. Nutt. Tipularia. 

 (From a fancied resemblance in the flower to insects of the genus Tipula.) 



Segments of the perianth spatulate, spreading. Lip oblong, 

 sessile, 3-lobed; the intermediate lobe elongated, with a filiform 

 spur at the base. Column wingless, free. Anther operculate. 

 persistent. Pollen-masses 4, parallel. 



T. discolor Nutt. Orchis discolor Pursh. Limodorum unifolium Muhl. 



Pine woods. Martha's Vineyard, (Torr.) to Car. July, l^. Scape 1015 

 inches high, slender, with a bulb at the base. Leaf solitary, ovate, petiolate, 

 strongly nerved, smooth. Flowers in a terminal raceme, nodding, minute, 

 greenish with a tinge of purple. Spur slender, nearly twice as long as the 

 ovary. n One-leawd T$putari/i. 



