304 FLORA. 



elliptic-lanceolate, 5-15 cm. long, obtuse; raceme few-flowered; flowers greenish, 

 smaller than those of the preceding species, 4-6 mm. long; sepals narrowly lance- 

 olate, spreading; petals linear, somewhat reflexed; lip obovate, pointed, its tip in- 

 curved; column half as long as the lip or less; capsule about 10 mm. long, wing- 

 angled, on a thickened pedicel. In wet thickets and on springy banks, N. S. to the 

 N. W. Terr., south to Md. and Mo. Also in Europe. May-July. 



22. CALYPSO Salisb. 



Bog herb, with a solid bulb and coralloid roots, the low I -flowered scape 

 sheathed by 2 or 3 loose scales and a solitary petioled leaf at the base. Flower 

 large, showy, terminal, bracted. Sepals and petals similar, nearly equal. Lip 

 large, saccate and swollen, 2-parted below. Column dilated, petal-like, bearing 

 the lid-like anther just below the summit. Pollinia 2, waxy, each 2-parted, with- 

 out caudicles, sessile on a thick gland, the stigma at the base. [Dedicated to the 

 goddess Calypso.] A monotypic genus of the cooler portions of the north tem- 

 perate zone. 



I. Calypso bulbosa (L.) Oakes. CALYPSO. (I. F. f. 1138.) Bulb I cm. in 

 diameter or less. Scape 7-15 cm. high; leaf round-ovate, 2-3.5 cm< l n g> nearly 

 as wide, obtusely pointed at the apex, rounded or subcordate at the base; flowers 

 variegated, purple, pink and yellow, the peduncle jointed; petals and sepals linear, 

 erect or spreading, 10-14 mm. long, with 3 longitudinal purple lines; lip large, 

 saccate, 2 -divided below, spreading and drooping, with a patch of yellow woolly 

 hairs near the point of division ; capsule about I cm. long, many-nerved. Labra- 

 dor to Alaska, south to Me., Mich,, Cal. and Ariz. Also in Europe. Flower some- 

 what resembling that of a small Cypripedium. May June. 



23. TIPULARIA Nutt. 



Slender scapose herbs, with solid bulbs, several generations connected by off- 

 sets, the flowers in a long loose terminal raceme. Leaf solitary, basal, unfolding 

 long after the flowering season (in autumn), usually after the scape has perished. 

 Scape with several thin sheathing scales at the base. Flowers green, nodding, bract- 

 less. Sepals and petals similar, spreading. Lip 3-lobed, produced backwardly 

 into a very long spur. Column erect, wingless or very narrowly winged. Anther 

 terminal, operculate, 2-celled. Pollinia 4, ovoid, waxy, 2 in each anther-sac, 

 separate, affixed to a short stipe, which is glandular at the base. [Latin, similar to 

 Tipula, a genus of insects, in allusion to the form of the flower.] Two known spe- 

 cies, the following of eastern North America, the other Himalayan. 



i. Tipularia unifolia (Muhl.) B. S. P. CRANE-FLY ORCHIS. (I. F. f. 1144.) 

 Scape glabrous, 4-5 ^dm. high, from a hard, often irregular solid bulb or conn. 

 Leaf arising in autumn from a fresh lateral corm, ovate, 5-7 cm. long, dark green, 

 frequently surviving through the winter ; raceme 12-25 cm. long, very loose; 

 flowers green, tinged with purple; sepals and petals 6-8 mm. long, narrow; lip 

 mostly shorter than the petals, the middle lobe narrow, prolonged, dilated at the 

 apex, the lateral lobes short, triangular; spur often twice as long as the flower; 

 column shorter than the petals, the beak minutely pubescent; capsule ellipsoid, 

 6-ribbed. In woods, Vt. to Mich., south to Fla. and La. Local and rare. July- 

 Aug. 



24. APLECTRUM Nutt. 



Scapose herbs, from a corm, produced from the one of the previous season by 

 an offset and sometimes with coralloid fibres; the scape clothed with several sheath- 

 ing scales. Leaf solitary, basal, developed in autumn or late summer, broad, 

 petioled. Flowers in a terminal raceme, the pedicels subtended by small bracts. 

 Petals and sepals similar, narrow. Lip clawed, somewhat 3-ridged, spur none. 

 Column free, the anther borne a little below its summit. Pollinia 4, lens-shaped, 

 oblique. [Greek, meaning without a spur.] A North American genus of 2 or 3 

 species. 



Petals and sepals linear-oblanceolate, less than 3 mm. wide, acutish. i. A. spicatum. 

 Petals and sepals broadly oblanceolate, 3-4 mm. wide, obtuse, a. A. Shortii* 



