— 85 — 



Planta annua, slricta, erecta, pilis simplicibus piibesceiis v. glabriuscula. Caulis tercs, 

 slriclus, ramosus, rainisdivaricatis. Folia piiinatifida, lobis dentatis, supra connueiitibus, 

 suprenia linearia, fere intégra. Pedicelli brèves, folio nullo suffuiti, floribus a»quilongi 

 V. breviores, appressi, fructibus maturis incrassafi , 2-3'"°' longi. Gemmai pana?, 

 ovatae. Flores minirai. (Jalyx clausus, sepalis linearibus, obtusis; corolla pallido lutea, ca- 

 lycem vix superans, petalis lineari-obovatis; antheras corollam fere aeqnantes. Siliqua? 

 subulata', teretes, 10-12°"" longer, axi appressœ, rostro brcvi, stigmate obscure bilobo, 

 valviï obscure riervatis; dissepimeiito opaco, cellulisclongatis maxime iiicrassatis. Semiiia 

 iiniordinata, nigrcsceniia. 



Crcscit intcr Europœ riidera, a Fennia (Prytz. et 'Wirzén in Led. /. <?. ) usqiie in Lusi- 

 laniam ( D'Escayrac ft«/fc. n. 161); in Teneriffa (Gonrart); in Algeria haud infre- 

 quens ; in Creta (Raulin); in Asia minore (Aucher-Éloy e.rsicc. n. Mil], in Georgia cau- 

 casica propeKisilarjotsch et Lenkoran (Hoh.), in Armenia; in America septentrional!, in 

 Andibus boliviensibus (Mandon), vulgaris quoque in pluriniis locis in Chile. — v. sp. 



Var. a leiucar/jion DC. Sysf. Il, 460. Guss. Si/n. fl. sicid. i, 188. — S.leiocarpiun 

 Jord. Diagn. I, 139! — Erysimum officinale Pursh Fl. n, 436? EH. .S'A. u, 1Z|8?. 

 — Fructu glabro. — Crescit in Sicilia, in Teneriffa insula, ia America septentrionali. 



/l6. S. ruderale Jord. Diogn. I, 138. 



Planta annua. Caulis erectus, pnberulus, supernc et laxe paniculato-ramosus, raïuis 

 rigidis p.iientibus etiam divaricalis, longe spiciferis. Folia inreriorapiimatifidoruncinata, 

 laciniis bi trijugis oblongis breviter et fere obtuse dentatis subintegrisve, impari gran- 

 diore, superiora sessilia, suprema angustata subindc lantum tripartita et subliastata. 



Pedunculi axi arcte adprcssi Gemma; Flores Calyx pedunculum subie- 



quans....; corolla lutea, petalorum lindjo oblongo-obovato, apice rotundato. Siliqnœ 

 arctissimœ adpressae, subleretes , dense puberuhe, in stylum brcviusculum sensim 

 abeunles, 14-16°"° longa;. Semina oblongo-ovata, snbfusca, subimraarginata. 



Crescit in ruderatis, ad vias Siciliœ, etiam Galliœ circa Montpellier, julio florens. — 

 Descr. ex Jord. 



Ohs. Uifferta 6'. o//?ci«o//siliqnislongioribuset diraidio crassioribus. 



47. s. niagarcHMc, n. sp. — S. officinale Pursli, Flliot? 



Planta annua, glabrescens. Caulis bipedalis, ramosus, ramis longe spiciferis. Folia omnia 

 pedicellala, dentala , inferiora siibpinnatifida, superiora inlcgriora. Pedicelli floiibus 

 breviores, appressi, maturis fructibus etiam filiformes, 4-5'°'° longi. Gemma; ovalœ. 

 Flores parvi. Calyx subclausus; Corolla pallide hitescens, petalorum limbo in unguem 

 limbo œquilongum tenuatim desinenie. Siliquae appressœ, teretes, glabra?, 10°'°' longae, 

 rostro gracili 2"" longo, stigmate minuto, obscure bilobo, valvis carinatis, uninervis. 



