ORCHIDACE^. (orchis FAMILY.) 509 



11. BLETIA, Ruiz & Pavon. Bletia. 



Sepals spreading, equal, rather exceeding the petals. Lip hooded, hinged as 

 it were with the eolunin, crested along the upper face, often 3-lobed. (,"ol- 

 umn half-cylindrical ; the fleshy anther forming a lid at its apex. PolJen-niasscs 

 8, in pairs, with a stalk to each pair, waxy, becoming powdery. — Scape many- 

 flowered from solid tubers. (Named for Loais Diet, a Spanish botanist.) 



I. B. aph^lla, Nutt. Leafless; scape (l"-2° high) beset with purplish 

 scales, the lower ones sheathing; flowers raecmcd, brownish-purple; lip not 

 saccate. Rich woods, Kentucky and southward. 



12. MICROSTYLIS, Nutt. Adder's-Mouth. 



Sepals spreading. Petals thread-like or linear, spreading. Lip auricled or 

 ovate at the base, not tubercled, entire or nearly so. Column very small, terete, 

 with 2 teeth or auricles at the summit and the erect anther between them. Pol- 

 len-masses 4, in one row (2 in each cell), cohering by pairs at the apex, waxy, 

 without any stalks, threads, or gland. — Little herbs, from solid bulbs, produ- 

 cing simple stems or scapes, which bear in our species a single leaf, and a raceme 

 of minute greenish flowers. (Name composed oi' fiiKpos, Utile, and arvXis, a 

 column or sfi/le. ) 



1. M. monophyllos, Lindl. Slender (4' -6' high); leaf sheathing the 

 base of the stem, ovate-elliptical; raceme spi/.id, loncj and slender; pedicels not 

 longer ihan the fowc'rs ; lip long-pointed. — Cold wet swamps, N. New England 

 to Pennsylvania, Wisconsin, and northward. July. (Eu.) 



2. M. ophioglossoldes, Nutt. Leaf near the middle of the stem, ovate, 

 clasping; raceme shoit and obtuse; pedicels much longer than the Jloiuers ; lip 3- 

 toothed at the summit. — Damp woods : more common southward. July. 



13. LIPARIS, Richard. Twayblade. 



Sepals and petals nearly equal, linear, or the latter thread-like, spreading. 

 Lip flat, entire, often bearing 2 tubercles above the base. Column elongated, 

 incurved, margined at the apex. Anther lid-like, terminal : pollen-masses 4, in 

 one row (2 to each cell), slightly united in pairs, without stalk, threads, or 

 gland. — Small, low herbs, with solid bulbs, producing 2 root-leaves and a Ioav 

 scape, which bears a raceme of few purplish or greenish flowers. (Name from 

 \nTap6i, fat or shining, in allusion to the smooth or unctuous leaves.) 



1. L. Iiliif61ia, Richard. Leaves ovate; petals tliread-like, reflexed ; tip 

 large (^' long) wi'dge-ohovate, abruptli/ short-pointed, hroivn-purptish. (Malaxis lilii- 

 Mia., Suartz.) — Moist woodlands : commonest in the Middle States. June. 



2. L. LcBs61ii, Richard. Leaves elliptical-lanceolate or oblong, keeled ; 

 lip obomite or oblong (2" long), mncronate, ydlowiah-green, shorter than the linear 

 unequal petals and s'pals. (Malaxis Correana, Barton.) — Bogs, New England 

 to Penn., Wisconsin, and northward : rare. June. (Eu.) 



14. CORALLORHIZA, Haller. Cokal-root. 



Perianth somewhat ringcnt, oblique and gil)bous or obscurely spurred at the 

 base ; the oblong or lanceolate sepals and petals nearly alike, the upper aiching ; 



