CRUCIFER^. (MUSTARD FAMILY.) 69 



* * Calyx nearly equal at base. Pods tardily dehiscent^ gradually taper- 



ing into an acute or oUuse stigma. 



3. M. Africaiia, L. .3, pubescent, with scattered, simple and 

 forked hairs. Leaves oblong, dentate or repand-toothed. Flowers .005 

 long, white; pods 4:-angled, spreading, scabrous, .OG long, .0015 

 broad — Spring — Sandy places; et-Tih, Dead Sea, and Moab, to 

 Damascus, Antilebanon, Palmyra, Aleppo, and northward, and 

 eastward. 



4. m, toruSosa, Desf. .25, sparingly pubescent or hispid 

 with branching hairs and bristles. Leaves oblong, acutely dentate or 

 pectinate-piinnatifid. Flowers .003 long, white; pods terete, hirsute, 

 torulose, .03 to .04 long, .001 broad — March to May — Fields and 

 waste places, throughout, even southward through the Tih to Egypt. 



Var. coiitortuplicata, Boiss. Pods twisted and coiled. Occurs 

 everywhere with type. 



Var. leiocarpa, Boiss. Pods glabrous. Leaves generally scarcely 

 dentate — Palmyra to Damascus, Hauran, and Gaza. 



5. M. Suiig^ei, Boiss. Stem .4 to. 6, branching from base and 

 above, beset with simple hairs. Leaves beset with bipartite hairs, ob- 

 long-linear, sinuate-dentate. Racemes .3 to .3 long, loose; pedicel a 

 little shorter than calyx; petals oblong-linear, pink; siliques straight 

 or circinnate, glabrous ; stigma short-conical, acutish — April — 



Var. g'lal>rescen§, Boiss. Stem glabrous. Leaves scabrous 

 only at margins — Fields west of Palmyra. 



* * * Calyx disaccate. Pods tardily dehiscent, gradually tapering into 



a style. Septum areolate, rarely fungous. 



t Flowers pinh. 



6. M. Cltia, Lam. .1 to .3, canescent, with appressed, bipartite 

 hairs, branching. Leaves entire, ohovate to ohlong, tayering to a petiole. 

 Flowers .008 long; pods .05 to .06 long, .001 broad, nearly erect, 

 puberulent ; style conical — April to June — Rocky places ; Hebron to 

 Moab, Galilee, Phcenicean coast, Lebanon, Antilebanon, Damascus, 

 and northward. 



7. ]fl, creuulata, D. C. .1 to .3, green, scabrous or glabres- 

 cent ; stems numerous, simple. Leaves crenulate-repand, lower oblong, 

 tapering to a petiole, upper sessile, clasping, oblong-lanceolate, long- 

 auricled. Flowers .015 long; pods .08 to .13 long, .0035 broad, 

 spreading, glabrous or sparingly papillose-hairy ; style bifid — January 

 to May — Deserted fields; Jordan Valley and southern Palestine to 

 Moab, Antilebanon, and Aintab. 



1 1 Flowers yellow. 



8. M, coiiringioides, Boiss. .05 to .1, green, scabrous-pa- 

 pillose ; stems simple. Root-leaves obovate-oblong, tapering at base, 

 repand or entire ; stem-leaves short-auricled, acutely denticulate. Flowers 

 .013 long; pods .06 to .09 long, .0015 broad, horizontal, glabrous; 



10 



