SUNDEW FAMILY. 173 



leaflets, or the upper of single leaflets, and an open panicle of large and 

 rather handsome, hanging green flowers, tinged with purple j the calyx is 

 oblong and bladdery ; out of it the tubular corolla at length projects, and 

 lias 4 slightly spreading acute lobes ; the leaflets oval, 2'-3' long, 

 crenate ; when laid on the soil, or kept in a moist place, they root and 

 bud at the notches, and produce little plants. 



XL! DROSERACE^E, SUNDEW FAMILY. 



Bog-herbs, with regular flowers, on scapes ; leaves in a tuft 

 at the root, glandular-bristly or bristly -fringed, and rolled up 

 from the apex in the bud, in the manner of Ferns ; the per- 

 sistent sepals and withering-persistent petals each 5 ; stamens 

 5-15, with their anthers turned outward ; and a 1-celled many- 

 seeded pod. Represented here by two genera of insectivorous 

 plants. (See Lessons, p. 154.) v 



1. DROSERA. Stamens 5. Styles 3-5, but 2-parted, so as to seem like fc-10. Ovary with 

 8 (rarely 5) parietal placentae. Reddish-colored and sticky-glandular. 



9,. DION^EA. Stamens 15. Style 1 ; stigma lobed and fringed. Ovules and seeds all at 

 the broad base of the ovary and pod. Leaves terminated by a bristly -bordered fly- 

 trap. 



1. DROSERA, SUNDEW. (Name means in Greek dewy, the gland 

 surmounting the bristles of the leaves producing a clear and dew-like 

 drop of liquid, which is glutinous, and serves to catch small insects.) 

 Flowers small, in a 1 -sided spike or raceme, each opening only once, 

 in sunshine, in summer. ^ 



* Flowers small, white ; leaves with a blade. 



D. rotundif61ia, Linn. ROUND-LEAVED S. The commonest species in 

 peat bogs ; with round leaves on long, hairy petioles, spreading in a tuft. 

 When a small fly or other insect is caught by the sticky glands on the 

 upper face of the leaf, the bristles of the outer rows very slowly turn 

 inwards, so that their glands help to hold the prey. 



D. intermedia, Hayne, var. Americana, DC. In very wet bogs or 

 shallow water N. ; has spatulate-oblong leaves on naked petioles, some of 

 them erect. 



D. brevifdlia, Pursh. SHORT-LEAVED S. Small ; scape only 2'-5' 

 high, few-flowered; leaves short, wedge-shaped. In wet sand, only at 

 the S. 



* Flowers rose-purple ; no blade to the leaf. 



D. filifdrmis, Raf. THREAD-LEAVED S. Leaves erect, thread-shaped ; 

 scape 6'-12' high, from a bulb-like base ; flowers handsome, \ l or more 

 broad. In wet sandy soil near the coast, from Plymouth, Mass., to Fla. 



2. DION.ZBA, VENUS' S FLYTRAP. (Named for the mother of 

 Venus.) 11 Only one species. 



D. muscipula, Ellis. Grows in sandy bogs in N. and S. Car., but kept 

 in conservatories as a curiosity. (Lessons, Figs. 170, 492.) Flowers 

 white, borne; in an umbel-like, cyme on a scape 1 high, in spring. 



