114 CRUCIFER^. Thysanocarpus. 



Bot. Calif, i. 48 ; M. E. Jones, Bot. Gaz. viii. 283. T. pulchellus, Fisch. & Mey. Ind. Sem. 

 Hort. Petrop. ii. 1835, 25; Hook. Comp. Bot. Mag. ii. 9. — Dry ground on hills, from 

 S. California and Arizona to Washington, SuksdorJ] and Idaho, Spalding, Wilcox. 



Var. elegans, Robinson, n. var. (Lace-pod.) Fruit larger, 2 to 4 lines broad; 

 wing usually perforated with regular series of rouudish upeuiugs: upper leaves inclining 

 to be broader than in typical form. — T. clegans, Fisch. & Mey. 1. c. 26; Hook. 1. c, & 

 Ic. t. 39; Torr. & Gray, Fl. i. 118. T. curvipes, Brew. & Wats. Bot. Calif, i. 48, in part; 

 Wats. Bibl. Index, 74. — Arizona, Privgle, Palmer, and California north at least to Ciiico, 

 Gi-ay. This variety, while in its extreme form strikingly different from the typical plant, 

 is thoroughly connected with the latter by a very complete and gradual series of inter- 

 mediate forms. Prof. Greene states that it does not grow in the Coast Range, but it has 

 been collected on Mt. Diablo, Brewer, and in the Napa Valley, Bigelow. 

 T. laciniatus, Nutt. Smooth or nearly so, glaucous, 8 to 15 inches high: leaves thinuer 

 than in the preceding; those near base not forming a dense or persi.stent rosette, linear or 

 subentire or deeply pinuatifid into narrow linear acute segments ; upper leaves entire, 

 elongated (10 to 15 lines in length), scarcely a line in breadth, inserted by a narrow base : 

 racemes 4 to 8 lines long: fruit obovate, elliptic, or orbicular, 1|- to If lines iu diameter 

 (including the entire or subentire imperforate wing), distinctly reticulated, commonly but 

 not always glabrous; pedicels slender, spreading and dettexed. — Nutt. in Torr. & Gray, Fl. 

 i. 118 ; Wats. Bot. King Exp. 31 ; Brew. & Wats. Bot. Calif, i. 49. — Central and Southern 

 California, Arizona. 



Var. crenatus, Brewer. Fruit with a deeply crenate-toothed or perforated wing, 

 usually becoming 2 to 2^ lines in breadth : racemes usually shorter and denser tlian iu type. 

 — Bot. Calif, i. 49. T. crenatus, Nutt. 1. c. T. ramosus, Greene, Bull. Calif. Acad. Sci. ii. 

 390. — Occurring with and not always distinguishable from the typical form. 



* * * Pods 4 to 5 lines in diameter, plano-convex or nearly so ; the wing radiately nerved, 

 neither toothed nor perforated : upper leaves ovate-oblong or ovate-lanceolate, cordate- 

 aurieulate. 



T. radians Benth. Stems lO to 15 inches high, simple or with a few simple elongated 

 ascending branches, glabrous : lowest leaves runcinately toothed or piunatifid ; tlie upper 

 sub-entire : racemes long, loosely flowered ; pedicels usually ascending but nodding near 

 apex, 4 to 8 lines long : petals purple, exceeding the calyx : fruit downy or quite smooth, 

 white, with dark nerves radiating in the wing. — PI. Hartw. 297; Brew. & Wats. Bot. 

 Calif, i. 49. — Central California, Sacramento Valley, northward to Oregon, Howell. Not 

 abundant, but striking on account of its large light-colored and radiately nerved fruit. 



4. BERTEROA, DC. (Dedicated to Carlo Giuseppe Bertero, a Pied- 

 montese botanist, 1789-1831, who travelled in South America.) — A small genus 

 often united with Alyssum, with which many of its technical characters agree, but 

 so different in its tall branching habit, as well as its very deeply cleft petals and 

 generally more numerous margined or winged seeds, as to appear worthy of 

 generic rank, to which it has lately been restored by Prof. Prantl. — Mem. Mus. 

 Paris, vii. 232, Syst. ii. 290, & Prodr. i. 158. Under Fctrsetia, Reichenb. Consp. 

 184. Under Alijssum, Benth. & Hook. Gen. i. 74. [By B. L. Robinson.] 



B. incAna, DC. Erect or somewhat decumbent, 1 to 2 feet high, pale green: branches 

 simple: radical leaves spatulate, 2 to 4 inches long; the cauline similar or lanceolate, 

 smaller : petals white, much exserted, deeply bifid, almost as iu Stellaria : capsule elliptic, 

 somewhat inflated, about 3 lines long ; cells about 6-seeded ; style slender, persi.stent. — 

 Syst. ii. 291. Ali/smm incanum, L. Spec. ii. 650. — Grain, hay, and clover fields, becoming 

 frequent, N. New England and Massachusetts, probably introduced with grass or clover 

 seed; also a ballast-weed about New York City, Judge Brown. (Adv. from Eu.) 

 B. miitAbilis, DC, a very similar species with pods larger and flatter, 4 to 5 lines long, is 



reported as somewhat established at Hingham, Mass., BouvL (Adv. from Eu.) 



