- 64 - 



B. Fruclu brevi. 



a. Pedicellis palentibus. 

 * Semmibus l-ordinalis. 



Ih. S. incisum Engeliii. in Gray PL Fendl. p. 8 {Mem. of am. Acad,, new ser. , 



t IV). Walp. Ann. ii, /|8. 



Planta annua, glabiesccns seu glanduloso-pilosa. Caulis iil-60 cent, altus, ramosus. 

 Folia sparsa, radicalia magna, 13-15 cent, longa, ad imam etiam floiidi caulis basim ma- 

 nentia, pinnis uiiinque 5 6 vaiiiformibus, in pinnulas longas pinnatisectas abeuntibus. 

 Pedicelli lacemosi, folio nullo suffulii, eiecli-patentes, demum borizonlales, rccli, fili- 

 formes, floribus tiiplo loiigioics, 7-8°° longi. Gemmae sub ipsa anlhesi parvai, ovatœ. 

 Calyx patulus, sepalis laiireoiatis; corolla lutea, calyce duplo longior. Siliquae lineares, 

 supra atienuatœ, maluiœ inflatae, S-?"""" longae, pedicello longiori recte insidentes, race- 

 mos breviores effingenics, valvis carinaiis, intus laevibus, apice prinium dchisccntibus ; 

 dissepimenlo lenuissinio, e fibris consiituto quœ sœpc in unum fasciculum coliœrent. 

 Semina pauca, uniordiuata. — v. sp. in berb. Mus. par. , Lcss. et Coss. 



Crescit in America septentrionali, inter parallela 52 et 36, in valle iacus Winnipeg 

 (Bourg. Palliser's exped.) , in NoiO-Mexico secus margines amnium prope San- Antonio 

 (Torrey Bot. of Whipples report p. 10 (68), et in sinu Santa-Fé (Fendler). 



Var. o. xcrophilum (a. flipes Engelni. /. c.) — pinnulis linearibus. — Ad Cleav 

 Water in ditione Orcgon (Spalding). 



Var. p. hygrophilum — pinnulis latioribus (Fendler exsicc. un. 31 et 525). 



** Seminibus 2- v. sub-1-ordinatis. 



15. S. canescens Nutt. Gen. II, 68. Rlchards. in Frankl. ht journ. éd. I. app. p. 746. 

 Elliot Carol. il, l/i7. Hook. FI. bor.-am. I, 62. DC. Syst. It, 675; Prodr. i, 196. 

 Torr. et Gray FI. of north Am. i, 92 excl. var. Walp. Rep. i, 166 excl. var. Asa 

 Gray PI. Fendl. p. 8. non Barn. in Cl. Gay FI. chil. 1,128. — 5. incanum 

 Bernh. in Linnœa l. c. — Cardamine Menziesii DC. Prod. i, 153 ? — Erysimum 

 pinnatum Walter Curol. 176. — le. Asa Gray The gênera of plants of the United 

 States lab. 66. et PI. fFright. Texano-Neo-Mexicanœ pars 2, 12. — Y enâXtr plant œ 

 JSom-Mexicancp n. 32. Wright Coll. Novo-Mexicanœ n. 846. Rugel exsicc. n. 22. 

 Lindheimer /7ora texana exsiccata fasc il, n. 219. Mexican Boundary survey exsicc. 

 n. 36. Berlandier ex«icc. n. 1920. — Anglice Tansey-Mustard. 



