Order 19.— DROSERAOB^. 251 



1 E. Virgfnloa Nutt St. erect, somewhat compressed, branching; Ivs. oblong 

 amplexicavi ; sta. united helow the middle, with 3 in each set. — Swamps and 

 ditches. tJ. S. and Can. Whole plant usually of a purphsh hue, 9 — 20' high. 

 Lvs. IJ — 2^' long, J as wide, upper ones lanceolate, lower oblong-ovate, all very- 

 obtuse, glaucous beneath. Fls. 5" diam., terminal and axillary. Pet. about twioe 

 longer than the calyx. Glands ovoid, orange-colored. Caps, ovoid-oblong, 

 acutish. Jl. — Sept. 



2 E. petiolata Ph. Los. oblong, narrowed at hose into a petiole ; fls. mostly in 

 33, axillary, nearly sessile; filaments united above the middle; caps, oblong, much 

 longer than the sepals. — Swamps S. States, N. to N. J. St. about 2f high. Lvs. 

 1 — 3' long, rounded-obtuse, with a short but distinct petiole. Els. smaller than 

 in the last. Aug., Sept. 



Ordbr XIX. DEOSERACEiE. Sundews. 



Serbs growing in bogs, often covered with glandular hairs, with lvs. alternate or 



all radical, mostly circinate (rolled from top to base) in vernation ; fls. regular, 



hypogynous, 5-raerou3, the sepals, petals and siaTnens persistent (withering) ;. ova. 



compound, one-celled, with the sttjles and stigmas variously parted, cleft or united 



seeds OO in the capsule, albuminous ; embryo minute. 



Genera, G, specieii 90. Curious and interesting plants, scattered over tho whole globe 

 wherever marshes are found. Tho halved stigmixs arc their most singular characterLstic. In 

 the sundew, &c., each half stigma is distinct, hence .apparently doubling their number, but in 

 the suborder, Parnassise, the adjacent halves of different stigmas are united, and thus stand op- 

 posite to the placenta!. 



1. DROSERA, L. Sundew. (Gr. S^oaog, dew ; from tho dow-lite 

 secretion.) Sepals 5, united at base, persistent ; petals 5 ; stamens 

 5 ; styles 3 — 5 each 2-parted, the halves entire or many-oleft ; cap- 

 sule 3 — 5-valved, 1-celled, many-seeded. — V Small aquatic herbs. Lvs. 

 covered with reddish, glandular hair.s, secreting a viscid fluid. Verna- 

 tion circinate. 



Scapes 4 — 6 times as long as the leaves Nos. 1 — 3 



Scaijes 1 — 2 times as long as the leaves Nos. 4 — G 



1 D. rotundifolia L. Lvs. orbicular, abruptly contracted into the hairy petiole; 

 fls. white. — A curious little plant, not uncommon in bogs and muddy shores. 

 Whole plant of a, reddish color, like the other Sundews, and beset with glandular 

 hairs which are usually tipped with a small drop of a clammy fluid, glistening 

 like dew in the sun. Lvs. about 5" broad and with the petioles 1 — 2' long. 

 Scape slender, 5 — 8' high, the racemes uncoiling as the small white flowers 

 open. Caps, oblong. Jn. — Aug. 



2 D. minor. Los. obovate, cv,neiform at base, the petioles naked ; fls. purple ; scape 

 erect — More delicate than the preceding, in marshes, Fla. to Texas. Lvs. form- 

 ing a rosulate tuft, 8 — 12" long, the smooth petiole three times longer than the 

 lamina, which is 2 — 3" wide. Scapes filiform, 3 — 6' high, the raceme simple 

 or forked, 5 or 6-flowered. Petals light purple. Caps, globular. Seeds ob- 

 long, tubercled. May. (D. brevifolia /3. major Terr. & Gr. D. intermedia 

 Chapman.) 



3 D. brevifolia Ph. Los. cuneiform-spatulate, forming a small, dense tuft (1' 

 diam.) j petioles very short, hairy ; fls. few, rose colored. — In wet, springy places. 

 Car. to Fla. and La. Not half as large as the last. Lvs. 5 or 6" long, 1 — 2" 

 broad, flat on the ground, forming a round, compact rosette. Scape 2 or 3' 

 high, bearing one to three conspicuous flowers. Capsule roundish. Apr. 



4 D. longifolia L. Lvs. spatulate-oblong or obovate, ascending, alternate, tapering at 

 base into a long, smooth petiole; scape declined at base; petals white. — Slender and 

 delicate, in similar situations with the last. Lvs. slender, ascending, crenate, 

 beset with numerous hairs tipped with dew-like drops, — length, including tha 

 petioles 2 — 3'. Candex lengthened, declinate. Scape bearing a simple raoem 

 of small, white flowers, arising 4 — T. Jn. — Aug. 



