430 CEUCIFBBAE (MUSTARD FAMILY) 



3. S. ffiio L. Similar; leaves runoinate-pinnatifid, the terminal portion 

 large ; pods ascending on slender pedicels. — Meadow, Grand Rapids, Micli. 

 {Miss Cole) ; ballast at Atlantic ports. (Adv. from Eu.) _ , 



4. S. canfiscens Nutt. Leaves pinnatiiid to tripiimatifid, canescent with 

 soft sliort hairs ; flowers yellowish, very small ; pods in long racemes, oblong- 

 club-shaped or Ihiear-cylindric, shorter than the horizontal pedicels ; seeds 

 2-rauked in each cell. {Sophia pinnata Howell.) — Pa. to Fla. and westw. — 

 Passing by various intermediates to 



Var. brachyc4rpon (Richards.) Wats. Green; stems at most cinereous- 

 stellate at base, usually glabrous or glandular-pulverulent. {Sophia Rydb.) — 

 Que. to Assina., s. to Ky., Mo., Kan., etc. 



5. S. incisum Engelm. Similar ; green or greenish ; pods more slender, 7-15 

 mm. long, about equaling the spreading pedicels ; seeds mostly 1-ranked. 

 {Sophia Greene.) — A western polymorphous species, extending eastw. to Ont. 

 and Minn. 



Var. filipes Gray. Pedicels thread-like, spreading, much exceeding the- 

 pods. — Minn., and westw. 



Var. Hartwegi^num (Fourn.) Wats. The very numerous short pods on 

 still shorter suberect pedicels. — Minn., and westw. 



6. S. S6phia L. a similar hoary species, with decompound leaves ; pods 

 slender, about 2 cm. long, ascending ; seeds 1-ranked. {Sophia Britton.) — 

 Sparingly in waste places. (Nat. from Eu.) 



^-- 7. S. TnALiA.NUM (L.) J. Gay. (Mouse-ear Ckess.) Slender, branched, 

 hairy at the base; leaves obovate or oblong, entire or barely toothed; flowers 

 white ; pods linear, somewhat 4-sided, longer than the slender spreading pedi- 

 cels. {Stenophragma Celak.) — Old fields and rocky places, Mass. to "Minn.," 

 Kan. and southw. Apr., May. (Nat. from Eu.) 



20. BRAyA Sternb. & Hoppe 



Pods cylindric to linear, often torulose, the septum or peculiar and charac- 

 teristic structure with its cells elongated transversely or obliquely. Flowers 

 white or purplish, capitate in anthesis. — Arctic perennials with single root and 

 branched hairs. (Named for Count F. G. de Bray of Rouen.) 



1. B. himilis (C. A. Mey.) Robinson. Sparingly pubescent, 1-2 dm. high 

 or less ; leaves narrowly oblanceolate, mostly with coarse and sharp teeth ; 

 pods narrow, subcylindrieal, 8-18 mm. long, ascending on short pedicels, beaked 

 by a short style ; seeds 1-ranked. {Sisymbrium C. A. Mey.) — Limestone cliffs, 

 Willoughby Mt. , n. Vt., Isle Royale, Mich., and northw. ; and in the Canadian 

 Rooky Mts. (Siber.) 



21. HESPERIS [Tourn.] L. Rocket 



Pod linear, nearly cylindrical ; stigma lobed, erect. Seeds in 1 row in each 

 cell, oblong, marginless. Cotyledons incumbent. ^ Biennial or perennial, with 

 serrate sessile or petiolate leaves, and large purple flowers. (Name from 

 ea-!r4pa, evening, from the evening fragrance of the flowers.) 



1. H. matronXlis L. (Dame's Violet.) Tall; leaves lanceolate, acumi- 

 nate ; pods 5-10 cm. long, spreading. — Sometimes cultivated, and spreading to 

 roadsides, etc. (Introd. from Eu.) 



22. ERYSIMUM [Tourn.] L. Treacle Mustard 



I'od linear, 4-sided, the valves keeled with a strong midrib ; stigma broadly 

 lobed. Seeds in 1 row in each cell, oblong, marginless. Cotyledons in oui-s 

 (often obliquely) incumbent. — Chiefly biennials^ with yellow flowers; the 

 leaves not clasping. Pubescence of appressed 2-S-parted' hairs. (Name from 

 ipieiD, to draw blisters.) 



