CRUCIFER^. (mustard FAMILY.) .89 



t S Hides ovate or oNmig, notched, winged; style free. 



1. L«. sativwm, L. .3 to .6 ; stem erect, stiff, paniculate. 

 Root-leaves 1-3-pinnately cut or lobed, the upper linear, undivided. 

 Flowering raceme long ; pedicels stiff, appressed ; silicles ovate-orbicu- 

 lar, .004 long, notched at apex, narrowly winged ; style as long as, or 

 a little longer than sinus — April to June — Beirut to Coelesyria, 

 Moab and Jerusalem ; escaped from cultivation. 



2. 1.. §pmescens, DC. .2 to .4, glabrous ; stem erect, 

 stiff, divaricately branched. Lower-leaves 1-3-pinnately cut into linear 

 lobes ; upper linear, entire or dentate. Flowering racemes short, elon- 

 gated in fruit, syinescent ; pedicels stiff appressed ; silicles ovate, .004 

 long, notched at apex, narrowly winged ; style as long as, or a little 

 longer than sinus — Spring — Fields ; common. Too near the last. 



S. Li. eornutum, Sibth. et Sm. .1 to .4, glabrous ; stem 

 erect, stiff, divaricately branched. Lower-leaves 1-2-pinnatisect, with 

 toothed and cut lanceolate and linear lobes ; upper linear, entire or 

 somewhat toothed. Flowering racemes short, elongated in fruit, spines- 

 cent ; pedicels stiff, appressed ; silicles imlricated, erect, oblong, .006 

 long, notched at apex for one-sixth to one-third their length; wing- 

 broad ; style much shm^ter tlmn sinus — Spring — Syrian coast to Coele- 

 Syria and northward. 



* * Silicles ovate or oUong, notched ; wings adherent to style. 



4. li. Auclieri, Boiss Sparingly stellate-puberulent, prostrate ; 

 items difuse, .15 to .3 long. Lower-leaves oblong, .03 to .04 long, 

 ^innately divided into 6blo)ig, obtusely lobed or toothed segments ; upper 

 oblong, tapering at base, sparingly toothed or entire. Racemes axillary 

 or terminal, compact in flower, loose in fruit, .1 to .15 long ; pedicels 

 spreading in flower, appressed in fruit ; silicles ovate-oblong, necirly 

 quadrangular, slightly dilated at base, .003 long ; wings ovate, acutish ; 

 style half as long as pod — May — Roadside near Nedjha, south of 

 Damascus. 



5. L.. Xebrodense, Guss. If.lto .15, woolly-canesceyit ; stems 

 decumbent. Root-leaves .05 long, oblong, petiolate, entire, 

 toothed, or obsoletely lyrate ; stem-leaves .01 long, oblong, minutely 

 auricled at base. Racemes capitate in flower, oblong in fruit, 

 .03 to .04 long ; pedicels spreading, longer than hirsute, obovate, 

 .004 long silicles ; wings *at apex, oblong, obtuse, one-third as long 

 as cells ; style a little longer than sinus — May and June — 'Akkar. 



Var. microstyliim, Boiss, Style scarcely longer than sinus 

 — Subalpine and Alpine Lebanon {L. microstylum, Boiss. et 

 mid.) 



* * * Silicles transversely ovate, .002 to .003 long, wingless. Perennials. 



6. L.. Draba, L. 2^ .3 to .5, pubescent ; stem erect, corymbose 

 at apex. Leaves oblong to oblong-lanceolate, repand or dentate, those 

 of root petiolate, of stem sagittate-clasping, Silicles cordate at base, 



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