OKDER 19. THE SUNDEWS. 173 



17 H. adpres'sum. Closed S. Lvs. half-erect. Petals obovate, longer thai: sep 

 13 H. dolabrifor'me. Hatchet S. Lvs. spreading. Pet. dolatriform, long as ?ep. 



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



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



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



22 H. pilo'snm. Hairy S. Hairy. Lvs. lance-ovate, appressed. S. 



2'; H. ma'ticum. Dwarf i'. Lvs. ovate, clasping, 5- veined. Cymes leafy, e. 

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



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



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



ORDER XIX. DROSERACE.E. The Sundews. 



Herbs 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 petals : 

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

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

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



Analysis of the Genera. 



i Stamens 5. DROS'ERA. 1 



r coiled (circinate) in the bud. | Stamens 10-15. DIONJC'A. S 



Leaves j net coiled in the bud. Sterile stamens many. PARNAS'SIA. 8 



1. DROS'EKA. 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 3-5-valved, 

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

 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 opeu. 



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



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



D. rotundifo'lia. Round-leaved S. Leaves round, on long hairy stalks. FJs white, 



small (about 3" broad). Scapes 5-8' high. c. 



2 D. minor. Lesser S. Lvs. wedge-obovate, on smooth stalks. Scape 3-6'. f>. 8, 

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



