with the slender pedicellate ovaries 6-10 mm. long; dorsal sepal narrowly oblong- 

 elliptic to linear-oblong, acute to apiculate, 1.3-1.7 cm. long. 4-6 mm. wide; 

 lateral sepals arising from a broad base, obliquely ovate-deltoid, somewhat keeled 

 at the apex, abruptly acute or apiculate. about 1.3 cm. long. 5-7 mm. wide; petals 

 with a short claw, varying in shape from narrowly oblong-pandurate to ovate- 

 lanceolate or oblong-elliptic with a distinct constriction near the middle, or with 

 an ovate-orbicular base and gradually tapering to oblong above, elongated, obtuse 

 or abruptly acute, widest below the middle, 1.2-1.5 cm. long, 3-5 mm. wide; lip 

 obscurely 3-Iobed, 1-1.3 cm. long; lateral lobes near the base, inconspicuous, 

 with a triangular apex, involute, separated from the large mid-lobe by a gradually 

 dilated isthmus; mid-lobe broadly obovate to suborbicular, broadly rounded 

 (sometimes retuse) at the apex, with broadly rounded lateral margins, 7-10 mm. 

 wide; disk bearded on the central portion with clavellate hairs, the basal and 

 central hairs being deep rust-red and the anterior hairs (usually extending to the 

 apical margins) being gradually reduced to pale lavender papillae; column broadly 

 winged on each side near the apex, 7-8 mm. long, 4.5-7.5 mm. wide across the 

 wings, with the pair of wings (when spread out) forming a semiorbicular lamina 

 which is either subtruncate at the base or tapering down the sides of the column. 



In moist acid sandy soils on edge of bogs, swamps and marshes, and in moist 

 open woodlands, rare in e. Tex. (Henderson Co.), Apr. -May; from N. C. along 

 the Atl. seaboard to Fla., w. along the Gulf Coast to e. Tex. 



2. Calopogon pulchellus (Salisb.) R. Br. Grass-pink. Fig. 369. 



Plant scapose, erect, slender to somewhat stout, glabrous, 1-13.5 dm. tall; root- 

 stock a rather small corm having a tuft of slender whitish roots at the proximal 

 end; leaves one or rarely two, basal, linear to linear-lanceolate, occasionally semi- 

 terete or linear-setaceous and bristly, strongly ribbed, keeled or flat, to 5 dm. or 

 more long and 5 cm. wide; raceme laxly flowered, elongated, composed of four 

 to twenty showy flowers, 8-46 cm. long; floral bracts ovate to ovate-lanceolate, 

 acuminate, 3-9 mm. long; flowers opening successively up the raceme, pink to 

 rose-purple or magenta-crimson, rarely pure white; dorsal sepal narrowly oblong 

 to oblong-elliptic, acute to apiculate, 2-2.7 cm. long, 5.5-10 mm. wide; lateral 

 sepals ovate to ovate-lanceolate or oblong-elliptic, oblique, abruptly acute, often 

 somewhat keeled and apiculate at the apex, 1.2-2.3 cm. long, 9-13 mm. wide; 

 petals with a short claw, narrowly pandurate, oblong-pandurate, ovate-lanceolate 

 or oblong-elliptic, usually somewhat constricted above the middle, widest near the 

 base, broadly rounded to obtuse or rarely acute at the apex, 1.3-2.4 cm. long, 

 4-9 mm. wide; lip obsolescently 3-lobed, 1-2 cm. long; lateral lobes minute, 

 separated from the midlobe by an elongated isthmus, the isthmus linear; midlobe 

 broadly cuneate-flabellate to obreniform or transversely oblong-elliptic, retuse to 

 broadly rounded and apiculate at the apex, occasionally retuse with an apicule in 

 the sinus, 6-18 mm. wide; disk bearded on the three central veins with clavellate 

 hairs, the filaments of the basal hairs united and deep purple, the shorter central 

 hairs distinct and gradually becoming cream-colored with orange-colored tips, 

 the anterior hairs gradually shortened and deep rust-red becoming fleshy-colored 

 papillae near the apex; column strongly incurved, 1-2 cm. long, broadly winged 

 on each side at the apex, 6-9 mm. across the wings; with the pair of wings (when 

 spread out) forming a suborbicular to rhombic or broadly obovate lamina; cap- 

 sule ellipsoid, three-angled, prominently six-ribbed, 1.2-2.3 cm. long, 5-19 mm. 

 in diameter. 



In depressions in savannahs and prairies, marshes, swamps and bogs, in Okla. 

 (Waterfall) and e. and s.e. Tex., Apr.-June; from Nfld., s. to s. Fla., w. to Minn., 

 la., Mo., Okla. and Tex. 



720 



