ORCHIDACE^E. (ORCHIS FAMILY.) 509 



11. B LET I A, Ruiz&Pavon. BLETIA. 



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

 it were with the column, crested along the upper face, often 3-lobed. Col- 

 umn half-cylindrical ; the fleshy anther forming a lid at its apex. Pollen-masses 

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

 flowered from solid tubers. (Named for Louis Blet, a Spanish botanist.) 



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

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

 saccate. Rich. woods, Kentucky and southward. 



12.MICROSTYLIS, Nutt. ADDEK'S-MOCTH. 



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 of /it/epos, little, and orvAi's, a 

 column or style.) 



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

 base of the stem, ovate-elliptical ; raceme spiked, long and slender ; pedicels not 

 longer than the flowers ; lip long-pointed. Cold wet swamps, N. New England 

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



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

 clasping ; raceme short and obtuse ; pedicels much longer than the /lowers ; lip 3- 

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



13. LI PA BIS, 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 low 

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

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



1; L. liliifblia, Richard. Leaves ovate; petals thread-like, reflexed; lip 

 large (^' long) wedge-obovate, abruptly short-pointed, brotun-purplish. (Malaxis lilii- 

 folia, Swartz.) Moist woodlands : commonest in the Middle States. June. 



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

 lip obovate or oblong (2" long), mucronate, yellowish-green, shorter than the linear 

 unequal petals and sepals. (Malaxis Correana, Barton.) Bogs, New England 

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



14. COBALLORHIZA, Haller. CORAL-ROOT. 



Perianth somewhat ringent, oblique and gibbous or obscurely spurred at the 

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



