The glandular hairs and leaf blade, itself, of these species are capable of 

 enmeshing and enfolding a luckless insect, after which it is digested. 



1. Scape with gland-tipped hairs except toward base; stipules absent or vestigial; 

 seeds crateriform, 0.3-0.4 mm. long 1. D. annua. 



1. Scape glabrous or with inconspicuous sessile glands; stipules prominent, 



free (2) 



2(1). Petioles with few to many long lax hairs lacking gland-tip; flowers pink, 

 about 10 mm. in diameter; seeds 0.4-0.5 mm. long, papillose- 

 corrugated with 14 to 16 ridges 2. D. capillaris. 



2. Petioles glabrous or with inconspicuous sessile glands; flowers white, 7-8 mm. 



in diameter; seeds 0.7-1 mm. long, irregularly and densely covered 

 with long papillae 3. D. intermedia. 



1. Drosera annua E. L. Reed. Fig. 478. 



Leaf blades suborbicular to cuneate-flabellate, to 8 mm. long and wide, about 

 one-third as long as the glandular petiolar base; stipules lacking or rudimentary; 

 scape erect, to 12 cm. tall, provided with gland-tipped hairs, supporting as many 

 as 6 flowers; sepals ovate, subacute, to 4 mm. long, united at base; petals pink 

 or roseate, obovate, to 9 mm. long; capsule obovoid, 3.5-4 mm. long; seeds black, 

 obovoid, the pits in 10 to 12 rows. 



In wet sand in pinelands or mixed forests and in open bogs in Okla. (Waterfall) 

 and e. and s.e. Tex., Feb.-June; Tenn., s. to Ala., Okla., La. and Tex. 



Referred by some authors to D. brevifolia Pursh. 



2. Drosera capillaris Poir. Fig. 478. 



Leaf blades broadly spatulate to obovate, to 1 cm. long and 9 mm. wide, 

 exceeded in length by the more or less pubescent petioles that are 4 cm. long; 

 stipules divided into numerous setaceous segments to 5 mm. long; scape erect, 

 to 25 cm. tall, glabrous or inconspicuously glandular, supporting as many as 20 

 glabrous flowers in a strictly erect inflorescence; sepals oblong-elliptic, obtuse, to 

 4 mm. long and 2 mm. wide, united at base; petals pink, to 7 mm. long and 

 3 mm. wide; capsule ellipsoid-obovoid, to 5 mm. long; seeds ovate-oblong to 

 elliptic, asymmetric, brown, coarsely papillose-corrugated. 



In wet sands and on seepage slopes and in bogs in e. Tex., Feb.-June; Va., 

 Tenn. and Ark., s. to Fla. and Tex.; also W.I., Mex., C.A. and n. S. A. 



3. Drosera intermedia Hayne. Fig. 479. 



Leaves usually basal but sometimes extending up the stem when the plants grow 

 in water or very wet places; leaf blades spatulate to oblong-obovate, to 2 cm. 

 long and 5 mm. wide, with slender glabrous or inconspicuously glandular petioles 

 to 5 cm. long; stipules divided into several setaceous segments to 5 mm. long; 

 scape erect, to 2 dm. tall, glabrous or inconspicuously glandular, supporting as 

 many as 20 flowers in an inflorescence that at first curves outward and often 

 downward at the base before becoming erect; sepals oblong, to 4 mm. long and 

 1.5 mm. wide, united at base; petals white or sometimes pinkish, to 5 mm. long 

 and wide; capsule ellipsoid, to 5 mm. long; seeds oblong, reddish-brown, blunt 

 at the ends, densely and irregularly covered with long papillae. 



In wet sands and peaty areas in s.e. Tex., June-Aug.; Nfld. to Ont., w. to O., 

 111. and Minn., s. to F!a. and Tex. 



Fam. 68. Podostemaceae Agardh River-weed Family 



Aquatic herbs, attached to rocks in swift-flowing water by disklike processes, 

 in habit resembling some species of algae and mosses; leaves alternate, 2-ranked, 



993 



