256 CKUCIFEE^. 



oblong or linear few-toothed or entire segments: fl. small, white: pods 

 spreading on short pedicels, flat, rather broadly linear, 1 in. long: seeds 

 orbicular, wing-margined. — Banks of the lower San Joaquin, near Bethany, 

 etc.; manifestly indigenous both here, and in San Diego Co., as well as on 

 the Atlantic slope of the continent. Perhaps better placed under Carda- 

 mine, notwithstanding the want of elasticity in the dehiscence of the pod; 

 for it is very incongruous with Arabis as now generally received. 



11. STREPTANTHUS, iVw^rt/L Mostly annuals, often stout and tall, 

 and the few branches loosely racemose throughout. Leaves pinnatifid 

 or toothed, rarely entire, except the cauline, and these mostly sagittate 

 and clasping. Calyx whitish or colored, open or closed, often irregular, 

 2 or all of the sepals saccate at base. Petals with broad channelled claw 

 and (in our species) a narrow lasually more or less undulate limb. 

 Stamens either tetradynamous or in 3 unequal pairs, the uppermost pair 

 often with filaments united; anthers elongated, sagittate at base, curved 

 in age. Pod from flat and thin to subterete; valves l-nerved or rarely 

 carinate. Seeds more or less flattened, margined or marginless. — Greniis 

 not at all definitely distinguished from Arabis, and as here given, with 

 Caulanthus in part, and Slanfordia included, far more naturally consti- 

 tuted than Arabis as received. The great diversities, and the strange 

 irregularities of floral structure in certain members of the Euclisia 

 section, would have the weight of generic characters if the whole group 

 were less uniform in respect to habit and sensible qualities. All the 

 species have a mild sweet herbage, much like cabbage, for which the 

 larger sorts were used as a substitute in early times. The typical Slrep- 

 tantJii, with broad Ijlade to the petals, are of the Southern Atlantic 

 states and have no representatives with us. 



* Flowers regular; sepals spreading or loosely erect; stamens tetradyna- 

 mous, no pair of filaments united; pods subterete; seeds not margined. 

 — Genus Stanpokdia and part of Caulanthus, Wats. 



1. S. Californicus, Greene. Wats. Bot. Calif, ii. 479 (1880), under 

 Stanfordia. Branched from the base, the ascending branches 1 ft. long; 

 herbage glabrous and glaucous, with a scant pubescence on the basal 

 part of the plant: lower leaves oblanceolate with dilated petiole, obtuse, 

 crenately toothed, 2 in. long; upper lanceolate, sessile and clasping, 

 sharply serrate: fl. in a loose raceme on hairy pedicels 2 — 3 lines long: 

 calyx deep piirple, 3 — 4 lines, equalling the whitish petals, these con- 

 sisting of a broad fleshy claw which is cordate at base, and a very short 

 and narrow almost obsolete limb: stamens not exserted; anthers linear- 

 oblong: pod thickish, slightly compressed, 1 in. long: seeds wingless; 

 cotyledons 3-lobed. — Abundant on the plains of the San Joaquin from 

 Tulare southward; a showy plant, thoroughly congeneric with the next. 

 The petals so far from being " without claws," are all claw, or with a 



