130 BEASSICACEAE. 



1.5-2 cm. long. — S. Eare, in woods along creeks. — Schists. — Sum. — Alle- 

 gheny-vine. Climbing-fumitory. 



2. BICUCULLA Adans. Perennial herbs, with granular or tuberous root- 

 stockg. Leaf -blades with narrow segments. Flowers in racemes or panicles, 

 mostly white to deep-pink. Sepals 2, entire. Stamens 6, somewhat diadel- 

 phous at the base. Capsule not included. — Spr. 



Rootstocks with yellow tubers : spurs rounded : Inner petals conspicuously crested. 



1. B. canadensis. 

 Rootstocks without tubers : spurs spreading : inner petals mi- 

 nutely crested. 2. B. CucuUaria. 



1. B, canadensis (Goldie) Millsp. Plants 2-3 dm. tall: leaf -blades dissected 

 into linear or nearly linear segments: racemes usually overtopping the leaves: 

 corolla greenish-white or purplish-tinged, the spurs much shorter than the 

 upper portion of the petals: capsule-body 11-15 mm. long, abruptly narrowed 

 at both ends. — Susquehanna valley. Bather common, in rich woods. — 

 Quartzites, schists. — Squirrel-corn. 



2. B. CucuUaria (L.) Millsp. Plants 1-3 dm. tall: leaf -blades similar to those 

 of B. canadensis: racemes usually overtopped by the leaves: corolla white or 

 pale-pink, the sj)urs about as long as the other portion of the petals: capsule- 

 body 10-13 mm. long, gradually narrowed at both ends. — Common, in rich 

 woods. — Dutchman 's-breeches. 



3. CAPNOIDES Adans. Annual or biennial caulescent herbs. Leaf- 

 blades with toothed segments. Flowers racemose, yellow, pink, or white. 

 Sepals 2, usually toothed. Stamens 6, diadelphous. Ovary elongate, several- 

 ovuled : style persistent. Capsule often torulose. — Spr. 



Corolla pink or purple, except the yellow tip : plants erect. 1. C. sempervirens. 



Corolla yellow : plants diffuse. 2. G. flavulum. 



1. C. sempervirens (L.) Borck. Plants 3-12 dm. tall, the branches ascending: 

 leaf -segments obovate to cuneate : corolla 14-16 mm. long, the spur rounded, 

 the inner petals about 15 mm. long, the blades about J as long as the claws: 

 capsules 3-4 cm. long. — Not very common, in rocky places near streams. 



2. C. flavulum (Eaf.) Kuntze. Plants 1-5 dm. tall, the branches spreading, 

 leaf -segments narrow, acute: corolla yellow, 10-11.5 mm. long, the smaller 

 outer petals prominently crested: capsules 1.5-2.5 cm. long, somewhat torulose. 

 — Common, in rich soil especially near the Susquehanna Eiver. 



4. FUMARIA [Tourn.] L. Annual herbs. Leaf-blades with small seg- 

 ments. Flowers racemose, white or pink. Sepals 2, scale-like. Stamens 6, 

 diadelphous. Ovary scarcely longer than thick, 1-ovuled: style deciduous. 

 Nutlet globular. 



1. F. officinalis L. Stem and branches 2-10 dm. long: leaf -segments linear or 

 nearly so: racemes 2-10 cm. long: pedicels 2-4 mm. long: corolla purplish or 

 flesh-colored, and crimson at the tip, 6-8 mm. long: nutlets 2-2.5 mm. in 

 diameter, emarginate at the apex. — Eather rare, in fields and on roadsides. 

 Nat. of Eu. — Spr. — Fumitory. 



Family 3. BEASSICACEAE. Mustard Family. 



Herbs or partially woody plants, the saj^ watery. Leaves alternate : 

 blades entire, toothed, or dissected. Flowers perfect, in spikes or racemes. 

 Calyx of 4 mostly erect or appressed sepals. Corolla of 4 usually clawed 



