Orver 138.—THE ORCHIDS. 289 
8. CORALLORHIZA. Coral-root. Dragon’s-claw. 
Flower ringent Sepals and petals similar, ascending, the upper arch- 
ing. Lip produced behind into a short spur, which grows closely to the 
ovary. Pollen-masses 4, oblique.—Herbs without green herbage, leafless, 
“with coraline roots, and spikes of dull-colored flowers. Mfay—Sept. 
1 Spurimperceptible. Lip not lobed, often with 2 teeth at base....2, 3 
1 ©. multifio’ra. Muny-flowered C. Spur manifest. Lip 8-lobed (the side lobes 
small), spotted. Flowers 10-20, purple. Height 10-15’. 
2 ©. odontorhi’za. Dragon’s-claw. Flowers 9-18, purple. Lip orenulate, spotted. 
Ovary and pod nearly globular. Scape 9-14’. 
8 C.inna’ta. Lrsser C. Flowers 5-10, purplish. Lip obscurely 2-toothed near the 
base, spotless. Ovary and pod club-shaped. 5-6’. 
4, ARETHU'SA. 
Sepals and petals cohering at base, similar, ascending, arching. Lip 
spurless, deflexed at the end, bearded inside, cohering to the petal-like 
column at base. Anther terminal, closing the 2 pollen cells like a lid. 
Pollen-masses 2 in each cell.—Small plants, 1-flowered, in wet places. 
Leaves none, or hidden in the sheaths. 
A. bulbo’sa. A beautiful plaut 6-12’ high, invested with about 3 long loose sheaths 
with lanceolate points (hardly leaves). At the top is a large, fragrant purple 
flower, in June. (See Figs. 651, 652.) 
5. SPIRAN’THES. ladies’ tresses. 
Flowers in a spiral spike, somewhat ringent. Petals and sepals nearly 
erect, all tending to the upper side opposite the lip. Lip raised on a short 
claw, concave, entire, widened at top and furnished with 2 callous pro- 
cesses at base. Column arching, pollen-masses 2.—Stem leafy below or 
nearly naked, bearing a spike of small, white flowers, which are bent 
sideways and horizontal. July-Oct. (Fig. 240.) 
* Fis. in a single row on one side, and bnt little twisted. Lvs. radical....1, 2 
* Fis. in several rows all around the short spike. Lvs. on stem below....3, 4 
1S. grac’ilis. Slender Z. Leaves ovate, varying to lance-oblong. Lip obovate, 
wavy-crisped. 
2S. tor’tilis. Twisted Z. Leaves linear, early withering (like first). Lip 3-lobed, 
finely crenate. 
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