DROSERACEAE. 139 



FAMILY 4. CAPPARIDACEAE. CAPER FAMILY. 



Herbs, shrubs, trees, or vines. Leaves alternate or rarely opposite: 

 blades simple or compound. Flowers perfect, in racemes or cymes, or 

 solitary. Calyx of 4 or 5 sepals. Corolla of 4 or 5, often unequal, petals. 

 Receptacle often produced into a gland. Androecium of 4-6 stamens or 

 more. Gynoecium of 2 united carpels. Ovary often stipitate. Fruit 

 capsular, sometimes baccate. Seeds conduplicate. 



1. POLANISIA Raf. Herbs. Leaf-blades simple or 3-foliolate. Sepals 

 4, spreading. Petals 4, white or pink, somewhat unequal, long-clawed, the 

 posterior pair before a short gland. Stamens 12-32: anthers oval to ovoid. 

 Ovary sessile or nearly so: style slender. Capsule linear or linear-oblong. 



1. P. graveolens Raf. Plants 1-8 dm. tall: leaflets 1.5-3.5 cm. long; blades 

 elliptic, oblong, or obovate: lower bracts 3-foliolate: sepals oblong, about 3 

 mm. long: petals 4-5 mm. long: blades suborbicular : capsules linear-oblong, 

 3-5 cm. long. Common, in fields, and on roadsides and river shores. Sum. 

 CLAMMY-WEED. 



Order SARRACENIALES. 



Insectivorous, usually scapose herbs, with viscid-fluid secreting tissues. 

 Leaves alternate, various, filiform, or with dilated, sometimes sensitive 

 blades, or hollow. Flowers usually perfect and regular. Calyx of distinct 

 sepals. Corolla of distinct petals. Androecium of few or many stamens. 

 Gynoecium of 2-5 united carpels. Ovary 1-celled, with 3-5 parietal or 

 basal placentae, or 3-5-celled. Fruit capsular. Endosperm fleshy. 



Ovary 1-celled, with a basal placenta or parietal placentae, not surmounted by a 

 peltate disk : leaves with filiform or dilated blades. Fam. 1. DROSERACEAE. 



Ovary 3-5-celled with central placentae, surmounted by 



a peltate disk: leaves with hollow blades. Fam.2. SARRACENIACEAE. 



FAMILY 1. DROSERACEAE. SUNDEW FAMILY. 



Annual, biennial, or perennial, glandular-pubescent herbs. Leaves 

 circinate in the bud, merely filiform or with broad blades. Flowers spicate 

 or racemose. Calyx of 4-8 persistent sepals. Corolla of 4r-8 petals. 

 Androecium of 4-8, usually 5, distinct stamens. Capsule loculicidally 

 3-5-valved. 



1. DROSERA L. Biennial or perennial (ours) scapose herbs. Leaves 

 clustered. Scape nodding at the apex. SUNDEW. 



Leaf-blades broad, suborbicular or broader than long : seed-coat lax. 



1. D. rotundifolia. 

 Leaf -blades narrow, spatulate : seed-coat close. 2. D. intermedia. 



1. D. rotundifolia L. Plants 5-30 cm. tall: leaf -blades suborbicular or reni- 

 form: scape glabrous: sepals becoming 5-6 mm. long: corolla 5-6 mm. wide: 

 capsules slightly exceeding the sepals : seeds fusiform, 1.5 mm. long. S. 

 Rather rare, in moist sandy soil. Schists. Sum. 



2. D. intermedia Hayne. Plants 5-20 dm. tall: leaves 2-6 cm. long; blades 

 linear-spatulate, with long glabrous petioles: sepals becoming 5-5.5 mm. long: 

 corolla white, 10-12 mm. wide: capsules scarcely as long as the sepals: seeds 

 oblong-cylindric, about 0.8 mm. long. S. Rare, in swamps and moist sandy 

 soil. Schists. Sum. 



