178 



18. Folia tomentoso-incana ; siliquae teretes elongatae (2 V2 — 3 polli- 

 cares) graciles substipitataî ; stylus 3 — 4 lin. longus, tenuis, 

 subulatus 1 — 2-8permu8 (nonnisi abortu 1-spermus ; siliquae ut 



in B. oleracea); corolla alba — _-^ ._. __. _.. __. .__ B. incana Ten. 



Folia villoBO-canescentia; siliquaB sub-4-gonae pollicem 

 baud excedentes, non stipitatas; stylus cylindricus 1'" longus 

 aspermus ; corolla flavida ___ _._ _._ _._ _._ __^ _^ .__ B. villosa Biv, 



19. Siliqua abbreviata 1 — 1| polliearis, crassissima (fere Raphani 

 sativi !) ; stylus Va vei V3 siliquas metiens: ___ _._ ß. macrocarpa Guss. 



Siliqua longior et gracilior, stylus brevior.._ ___ .._ .._ ... 20 



20. Inferne suffrutescentes, ramis basi lignescentibus ... ... -_ 21 



Herbacete annuae vel biennes _- .__ ___ — __. ... ... ... 22 



21. Flores candidi... ... ... ... ... .__ ...... B. nivea Boiss. et Sprun. 



Flores iiavi (folia num quam lyrata,suprema integerrima) B, cretica L 



22. Folia superiora incisa; siliquae teretiusculse .__ ._„ ... ._. B. oleracea L 



Folia superiora intégra; siliquiß tetragonœ_._ ... B. montana Pourr- 



23. Siliquse rostrum nunc teres, paulo (saepius) tetragono-com- 

 pressum, nunc totum (siliquœ tune gracile linearis valvis multo 

 brevius) vel solummodo apice ancipiti-compressum ... __. ._. 24 



Siliquaerostrum totum plano-compressum,foliaceum, anceps, 

 ensiformi-elongatum siliquœ breviusculae atque crassioris dimi- 

 diam aquans vel longius ... ... ... ._. ._. ___ .__ ._. .__ ___ 67 



24. Siliquœ rachi adpressœ — ... ... ... ... ... ... ... ... ... 25 



Siliquse rachi baud adpressœ in pedicellis patulis vel paten- 

 tissimis ... ... ... ... ... ... ... ... ... ... ... ... ... 27 



25. Stylus vix lineam longus ... ... ... ... ... ... ... ... ... ... 26 



Stylus 3'" vel ultra longus; (pedicelli calycem superantes) 



B. pubescens Ardoino 



(Flore des Alpes maritimes ; — Sinapis pubescens L.) 



26. Siliquœ angustœ, tenues, cylindraceo-subulatœ valde torulosœ ; 

 sepala pedicellis breviora patentissima ; pedicelli crasse 

 cuneati ... ... ... ... ... ... ... ... ... ... ... B. adpressa Boiss. 



(Sinapis incana L.) 

 Siliquœ latœ, conico- atténuai œ, crassœ ; sepala pedicellislon- 

 giora patula ; pedicelli tenues ... ... ... ... ... ... B. nigra Koch. 



(Sinapis nigra L.) 



27. Inflorescentia foliaeeo-bracteata i. e. folia sensim insensibiliter 

 decrescentia per inflorescentiam continua atque pedicellos infe- 

 riores saltem stipantia... ... B. bracteata Gren. et Godr. (sub DiplotaxideJ 



(B. Pullichii Jess. — ; Erucastrum Pollichii Sch, et Sp.) 



Folia interfloralia nulla ... ... ... ... ... ... ... ... ... 28 



28. Pedicelli longissimi, siliquas pluries superantes (folia pectinato- 



