CEUOIFERvE. 21 



1. B. vulgaris, K.Br. Stoutish, 1 — 3 ft. high; herbage bright green 

 and glossy: leaves mostly radical, the very lowest sometimes simple, 

 oftener with 1 or more pairs of relatively small lobes below a very large 

 terminal one; cauline either simple and toothed, or pinnately parted: 

 fl. 2 — 3 lines long: pods 1 — 2 in., erect, ascending, or even arcuate- 

 spreading. — Common in moist shady places. March — June. 



12. ERYSIMUM, Diosc. Biennials or perennials; ours stout, simple 

 or with few branches. Leaves narrow, entire or runcinately toothed, 

 not clasping. Flowers large, yellowish or orange. Sepals erect, one 

 pair strongly gibbous at base. Petals with low claw aDd flat blade. 

 Anthers sagittate. Pod 4-angled or flattened, and the valves merely 

 nerved. Seeds in 1 row, not margined, oblique. 



1. E. asperum (Nutt.), DC. Canescent with short straight closely 

 appressed hairs: stems solitary, rarely with a few branches above, 1 — 3 

 ft. high, angular: leaves narrowly spatulate or oblanceolate, entire or 

 runcinate-toothed, 1 — 3 in. long: fl. large, fragrant: sepals narrow, 4 — 6 

 lines long: petals from light yellow to deep orange, 8 — 12 lines long: 

 pods slender, spreading, quadrangular, commonly 3 — 4 in. long, 1 line 

 wide, beaked with a stout style. — Common in the mountains almost 

 everywhere. April — July. 



2. E. capitatnm (Dougl.), Greene. Stout and low, % — \% ft. high, 

 sparingly pubescent with appressed bifid or 2-parted hairs; leaves 

 narrow, entire, or sinuately or angularly toothed or lobed: fl. large, 

 cream-color or yellowish, in a depressed terminal corymb, scarcely 

 fragrant: pods nearly flat, with a strong midvein, ljg lines wide, the 

 whole \% — 2^4 in. long, abruptly and stoutly short-pointed: seeds 

 flattened. — Among the sandy or rocky hills of the seaboard only. Feb. — 

 May. 



13. BRASSICA, Pliny. Large annuals or biennials, with erect often 

 widely branching stems, lyrate or pinnatifid lower leaves, and yellow 

 flowers. Sepals equal at base. Petals unguicnlate; limb obovate. 

 Pods linear or oblong, terete or quadrangular, with a stout 1-seeded or 

 seedless beak; valves 1 — 5-nerved. Seeds in 1 row, globose; cotyledons 

 ijicumbent. 



* Sepals erect, enfolding the claws of the petals. — Bbassica proper. 



1. B. oampbstris, L. Glabrous and glaucous, 2 — 3 ft. high: lower 

 leaves somewhat rough-hairy, lyrate with large terminal lobe; cauline 

 oblong or lanceolate with a broad auriculate-clasping base: fl. 3—4 lines 

 long: pods nearly terete, 2 in. long or more, on ascending or spreading pedi- 

 cels, the stout beak 8 —10 lines long. — Abundant in fields, flowering in 

 the late winter and early spring months; commonly but erroneously 

 called Mustard. Jan.— April. 



