SISYMBRÏUM. 



SiSYMBRiUM AH. FI. ped. i, 27/i. Neck. Elem. n. 1395. R. Br. H. kew. éd. 2, iv, 

 111. Poir. Suppl. V, 159. C.-A. Mey. in Led. FI. ait. m, 122. Meissn. Gen. 13 (12). 

 Torr. et Gray FI. of north Am. I, 91. Hook. FI. bor.-am. i, (iO. Led. FI. ross. I, 176. 

 Griseb. Spic. i, 255. Barn. in Ci. Gay FI. chil. i, 120. Tuiez. FI. baïcal.-dahur. i, 

 151. Mute! Dauph. crt. 2, 29. Kirsclil. FI. d'Als. 1, 52. Sond. FI. cap. 1, 24. Asch. 

 Brand. 62. — Sisymbrii s\>. L.,Juss., Gaertii., DC, Bieb , Endl., Koch, Bertol., 

 Gren. et Godr. , Benth. et Hook., etc., etc. — Erysimum Tourn. Inst. 228, tab. 111. 

 Boerh. Hist. 42S non L. — Erysimum Sophia, Norta et Kibera Adans. Fam. Il, 417 

 et 418. — Dauice Gabeklap {L;\nge Haandb. 389). 



Herl)ae v. suffrulices fere in toto terrarum orbe, iiisi in regione aequatoriali inferiore 

 crescentes. Folia intégra v. runcinata v. uni-tripinatifida, lobis tcrniinalibus integrioribus 

 V. coalesceiilibus saltem in summis foliis. Corolla pclalis in unguem attenuatis ; fila- 

 menta edentula;stigma discoideum, in medio periusum, marginibus saspe supra placen- 

 tas promineiitibus, ilà ut bilobum videalur. Siliqua stricta, baud stipilala, iongiludine lali- 

 tudinem superans, deiiiscens, valvarum fibris stratum unicum undulatum effiiigentibus; 

 semina oblonga, obscure trigona, immarginata, cotyledonihus planis, .scpto contrariis, 

 radicula dorsali v. rarius obliqua. 



Differt ab Andrejowskia filamentis edentulis, à Malcoimia et ab Hesperide stigmate 

 non lobis longis fisso, à Conringia cotyledonibus planis, à Smelou'skia foliorum lobis 

 apice non bas! coalescentibus. 



Subgenus I. EUSISYMBRIUM Boiss. Diagn. pass. 



Herbae v. suffruticesquarum siliquae déhiscentes, dissepiinentuin e membranis duobus 

 constans, inter quas aliquando paucae, v. in medio v. in utroque laterc fibrae nervos 

 eiïormaut. 



Sect. I. DESCURAINIA Webb Phyt. canar. i, 72 part. 



Suffrutices pilis stellatis induti, canarienses. Folia composila, exauriculata, imparipin- 

 nata, pinnis utrinque suboppositis, rhachi dilatato, in medio nervo uniconotato. Pedi- 



