RO SALES. 47* 



as many, or fimbriate. Capsule 3 valved (rarely 5-valved), many-seeded, generally 



stipitate in the calyx. [Name from the Greek, dew.] About no species, most 



abundant in Australia. Besides the following, 2 others occur in the southeastern 

 States. 



Blaue of the leaf orbicular, or wider than long; petals white. 1. D. rotundijolia. 



Blade of the leaf linear, or longer than wide. 



Leaves linear or spatulate with a distinct petiole; petals white. 

 Blade of the leaf spatulate. 



Blade 2-3 times as long as wide. 2. D. intermedia, 



Blade 6-8 times as long as wide. 3. D. longifolia. 



Blade linear, 10-15 times as long as wide. 4. D. linearis. 



Leaves filiform, much elongated, with no distinct petiole; petals purple. 



5. D. 



1. Drosera rotund folia L. ROUND-LEAVED SUNDEW OR DEW-PLANT. 

 (I. F. f. 1803.) Scape glabrous, 1-2.5 dm. high- Leaves orbicular or broader, 

 spreading, the blade 6-12 mm. long, abruptly narrowed into a flat pubescent 

 petiole; raceme I -sided; pedicels 2-4 mm. long; flowers white, about 4 mm. 

 broad; petals oblong; seeds fusiform, pointed at both ends, the testa loose. In 

 bogs or wet sand, Lab. to Alaska, Fla. and Ala., and in the Sierra Nevada to Cal. 

 July-Aug. 



2. Drosera intermedia Hayne. SPATULATE-LEAVED SUNDEW. (I. F. f. 1804.) 

 Rootstock elongated ; scape glabrous, 0.7-2 dm. high. Blades of the leaves 

 ascending, spatulate, obtuse, 6-14 mm. long, 3-4 mm. wide, gradually narrowed 

 into a glabrous petiole; raceme i-sided; pedicels about 3 mm. long; petals white; 

 seeds oblong, the testa close, roughened. In bogs, N. B. to Sask., Fla. and La. 

 Also in the W. I. and Europe. July-Aug. 



3. Drosera loigifjlia L. OBLONG- LEAVED SUNDEW (I. F. f. 1805.) Simi- 

 lar to the preced ; ng, but the leaf-blade erect, longer (1.5-3 cm - l n gi 3~4 mm - 

 wide), elongated-spatulate ; pedicels 1-6 mm. long; flowers white. 4-5 mm. broad; 

 seeds oblong, obtuse at bjth ends, the testa loose. In bogs, Newf. and arctic 

 America to Br. Col., Ont. and Cal. Also in northern Europe and Asia. Summer. 



4. Drosera linearis Goldie. SLENDER-LEAVED SUNDEW. (\. F. f. 1806.) 

 Scape low but sometimes exceeding the leaves, glabrous Petioles erect, glabrous, 

 5-10 cm. long ; blade linear, 2-8 cm. long, about 2 mm. wide, obtuse ; flowers 

 few, or solitary, white; seeds oblong, the testa close, smooth and somewhat shin- 

 ing. In bogs, shores of Lake Superior and Lake Huron, west to the Canadian 

 Rocky Mts. 



S- Drosera filiformis Raf. THREAD-LEAVED SUNDEW. (I. F. f. 1807.) Scape 

 glabrous, 2-5 dm. high. Early leaves lanceolate, the apex glandular; later leaves 

 filiform, glandular-pubescent, 1.5-4 dm. long, about 2 mm. wide, woolly with 

 brown hairs at the base; racemes i-sided, 10-30 flowered; pedicels 4-8 mm. long; 

 flowers purple, 8-25 mm. broad; petals obovate; seeds fusiform, the testa minutely 

 punctate. In wet sand, E. Mass, to Fla. July-Sept. 



Order 18. ROSALES. 



Herbs, shrubs or trees, the flowers usually petaliferous and the petals 

 distinct. Stamens mostly perigynous or epigynous. Sepals mainly 

 united or confluent with the concave receptacle. Carpels one or more, 

 distinct or sometimes united into a compound ovary. 



* Small aquatic fleshy herbs, with a spathe-like involucre, and a 2-3-celled capsule : 



pfirianth none. Fam. i. Podostemaceae. 



* Land or rarely swamp plants without an involucre. 



t Endosperm present, usually copious and fleshv ; leaves mostly without stipules. 

 Herbs. 



Carpels as many as the calyx-segments; stamens as many or twice as many. 



Plants succulent ; carpels distinct or united at the base, in ours dehiscent length- 



w i se - Fam. 2. Crassulaceae. 



Plants not succulent; carpels united to the middle, circumscissile. 



Fam. 3. Penthoraceaq 



