Neslia. CRUCIFERiE. 131 



C BuBSA-PASTORis, MecUc. 1. c. (Shephekd's Purse.) Finely stellate-pubescent and some- 

 what hirsute : basal leaves oblong or oblanceolate in outline, narrowed below to winged 

 petioles, dentate or deeply siuuate-piunatifid ; cauline leaves lanceolate, sessile by sagittate 

 clasping bases : racemes in fruit loose, elongated, often branched ; pedicels filiform, spread- 

 ing. — Thlaspi Bursa-pastorts, L. Spec. ii. 647. Bursa Bursa-jjastoris, Weber ace. to Britton, 

 Mem. Torr. Club, v. 1 72. — One of the commonest door-yard weeds, doubtless of gerontogeoua 

 origin, but now cosmopolitan. (Nat. from Eu.) 



§ 2. HymenolobejE. Fruit elliptical, entire at the apex : indigenous, chiefly 

 in the West. 



C. elliptica, C. A. Meter. Low, weak and spreading, very minutely stellate-pubescent or 

 glabrous throughout : leaves thin, small, spatulate or lanceolate ; the lower commonly with 

 a few blunt teeth or more or less deeply pinnirtifid : stems nearly filiform, flexuous : flowers 

 minute : sepals ovate-elliptic, obtuse, thin-margined, about equalled by the narrow white 

 petals: capsule elliptic-oblong, 1 to 1^ lines in length; stigma nearly sessile. — Meyer in 

 Ledeb. Fl. Alt. iii. 199. C. procumbens, Fries, Mant. i. 14; Reicheub. Ic. Fl. Germ. ii. 

 t. 11; Britton, Bull. Torr. Club, xvii. 311. C. divaricata, & C. erecta, Walp. Rep. i. 175. 

 Hymenolobus divaricatus, Nutt. in Torr. & Gray, Fl. i. 117; Hook. let. 277. H. erectus, 

 Nutt. 1. c. Lepidium procumbens, L. Spec. ii. 643. Hutchinsia procumbens, Desv. Jour. Bot. 

 iii. 168 (1814). — Dead Islands, Labrador, Allen; widely distributed in the West, from 

 Wyoming, Porter, to Brit. Columbia, Macoun, and S. California. (Asia, &c.) 



C. pubens, Benth. & Hook. Tall, erect, quite simple or with several ascending branches, 

 finely and rather closely stellate-tomentose throughout : stem rather stout, leafy : leaves 

 lanceolate or oblong, piunately toothed or merely repand : racemes rather dense, becoming 

 much elongated ; pedicels 4 to 8 lines long : sepals spreading in anthesis : capsules sub- 

 inflated, stellately pubescent and hispid, 3 to 4 lines long, tipped with a short slender style. 

 — Benth. & Hook. ace. to Wats. Bibl. Index, 52, & Proc. Am. Acad. xvii. 322. Hymenolobus 

 pubens. Gray, PI. Wright, i. 9, & ii. 14. — Prairies of Texas, Wright, Girard, Havard, and 

 New Mexico, Wright. (Mex., Palmer, Pringle.) 



17. CAMELINA, Crantz. False Flax. (Name doubtfully derived 

 from x<^i"'"4 o^ t^^^ ground, dwarf, and kivov, flax, perhaps referring to a stunt- 

 ing influence upon flax, in fields of which it often grows.) — Erect geron- 

 togeous annuals with sagittate-clasping oblong to linear entire or dentate 

 thickish leaves (the lowermost rarely pinnatifid), and pale yellow or white 

 flowers of no beauty. — Stirp. Austr. i. 18 ; Reichenb. 1. c. t. 24; Benth. & Hook. 

 Gen. i. 83 ; Prautl in Engl. & Prantl, Nat. Pflanzenf. iii. Ab. 2, 189. [By 



B. L. Robinson.] 



C. SAxfvA, Crantz, 1. c. Stem simple or sparingly branched above, 1^ to 4 feet high, leafy, 

 nearly glabrous or somewhat hirsute : leaves erect, 1^ to 2-J lines long, entire or nearly so : 

 flowers rather small, light yelhnv : fruiting pedicels spreading-ascending: fruit obovate, 

 becoming 3^ to 4 lines long, three fourths as broad, glabrous, margined, finely reticu- 

 lated and sliglitly ribbed upon the faces. — DC. Syst. ii. 515 ; Beck, Bot. 27 ; Darlingt. Fl. 

 Cest. 379 ; Torr. & Gray, Fl. i. 110. — A weed not infrequent in cultivated ground, especially 

 in flax-fields in Canada and the Middle States, extending across the continent ; fl. early 

 summer. (Introd. from Eu.) 



18. NifiSLIA, Desv. (Dedicated to J. A. N. De Nesle.) — Au erect 

 annual monotype of the Old World, adventive in America. — Journ. Bot. iii. 

 162 (1814) ; Reichenb. 1. c. [By B. L. Robinson.] 



N. PANicuLATA, Desv. 1. c. Pubcsccnt, a foot or more in height, simple up to the inflorescence : 

 leaves oblong, obtusish, 1 to 2 inches in lengtli, erect, sessile and clasping by a sagittate 

 base : racemes 1 to 5, ascending ; pedicels widely spreading, very slender, 3 to 4 lines long : 

 sepals oblong, pale yellow : petals spatulate, bright yellow : capsule subglobose, reticulated, 



