Order 19.— THE SUNDEWS. 173 



17 H. adpres'sum. Closed S. Lvs. half-erect. Petals obovate, longer than scp 



18 H. dolabrifor'rae. Jlutchet S. Lvs. spreading. Pet. dolabriform, long as scp. 



19 H. angulo'sum. Angled S. Lvs. ovate, acute. Style thrice longer than ovary. 



20 H ellip'ticum. Elliptic S. Lvs. elliptic, obtuse. Style as long as ovary. N. M. 



21 H. grave'olens. Strong-scented S. Smooth. Lvs. oblong-ovate, clasping. S. 



22 H. pilo^sum. Hairy S. Hairy. Lvs. lance-ovate, apprcssed. S. 



23 H. mu'ticum. Dwarf S. Lvs. ovate, clasping, 5-veined. Cymes leafy, c. 



24 H. Canaden'se. Canada S. Lvs. linear, black-dotted. Cymes leafless, c. 



25 H. Saro'thra. Pine-weed S. Lvs. awl-shapcd, minute. Fls. sessile. 



26 H, Drummon''dii. Druinmond^s S. Lvs. linear. Fls. stalked. W. 



Order XIX. DROSERACE^. The Sundews. 



Eerls growing in bogs, often covered with glands, with 

 leaves alternate, circinate (rolled from top to base) in the bud ; 

 flowers regular, of 5 persistent sepals and 5 withering ^eto?s; 

 stamens 5, distinct, and a single, compound ovary ; 

 styles 1-5, and fruit a 1-3-celled many-seeded capsule, and with 

 seeds having a small embryo at the base of the albumen. 



Analysis of the Genera. 



c Stamens 5. Dros^era. 1 



t coiled (circinate) in the bud. | Stamens 10-15. Dioisr^''A. 2 



Leaves ( not coiled in the bud. Sterile stamens many. Parnas'sia. 3 



1. DEOS'ERA. Sundew. 



Sepals 5, united at base, persistent. Petals 5. Stamens 5. Styles 3-5, 

 each deeply 2-parted, so that there seems to be 6-10. Capsule 8-5-valved, 

 1-celled, many-seeded. — U Small aquatic herbs. Leaves (all radical in 

 the American species) clothed with long, reddish, gland-bearing hairs, 

 exuding a clear, sticky fluid. Flowers in a raceme on a slender scape, 

 which is at first coiled downward, but uncoils as the flowers open. 



* Scape 4-6 times longer than the spreading leaves 1-3 



* Scape 1-2 times longer than the ascending leaves 4-6 



1 D, rotundifo'lia. Round-leaved S. Leaves round, on long hairy stalks. Fis wbitu, 



small (about 2>'' broad). Scapes 5-8' high. c. 



2 D. minor. Lesser S. Lvs. wedge-obovate, on snooth stalks. Scape 3-6''. p. ?,. 

 8 D. brevifc'lia. Tiny S. Lvs. spatulate, on short, hairy stalks. Scape 2-3^ p. S 



