63 CRUCIFERfi. (MUSTARD FAMILY.) 



stigma narrow \ seeds witli broad wing — April to May — Moab?, and 

 eastward to Persia. 



2. M. cra§sifolia, Boiss. et Gaill. % Densely woolly with 

 Irancliijig hairs ; base bushy. Leaves oblong, entire, or olsoletely sinuate, 

 obtuse. VeioXs, 2'>urplish\ pods. 10m. long, and .004 broad, woolly; stigma 

 a little narrower than ripe pod — April to June — Rocks; Phoenician 

 coast, and probably southward. 



Var. piiinatillcla, Post. Lower leaves more or less pinnatifid — 

 Beirut. 



3. M. Daina§ceiia, Boiss. If Densely woolly with branching- 

 hairs; stems simple or branched at base. LesiYes ovate-oNo7ig, sinuate, 

 or coarsely 2-3-toothed-lobed. F etuis dingy-yellow; pod .15 m. long, 

 .003 broad, woolly; stigma much narroioer than ripe pod — April to 

 June — Antilebanon; Damascus; Deir 'Atiyeh to el-Mahin. 



4. M. tristis, L. 2f Appressed-canescent, much branched, 

 shrubby at base. Leaves linear, entire, or 1-2-dentate-lobed on each 

 side. Flowers sessile; petals limd, or purplish; pods slender, .07 to 

 .08 m. long, spreading; stigma with lateral tubercles, or horizontal, 

 acute horns, the latter. 002 m. long — Early Summer — Pits at quarries ; 

 Beirut {Blanche). 



5. M. Arabica, Boiss. % WooUy-cauescent, .75 m. to 1 m. 

 high, many-stemmed, rigid, branching from base. All the leaves lanceo- 

 late-linear, entire. Flowers sessile ; petals livid; pods spreading, 

 pubescent, .05 m. long, incurved-twisted ; stigma ovate, somewhat 

 broader than pod — Spring — Et-Tih, and eastern desert. 



* * Annuals. Stigma '^-horned. Pods terete. 



t Lamina of petals obovate or oblong, purple or pinJc. 



6. M. bumili§, D. C. Ashy-velvety, .10 m. Leaves linear, 

 or lanceolate, dentate, or pinnatifid. Flowers sessile; pods .03 m. to 

 .05 long, .0015 broad; stigma shoi't, conical, or bigibbous; horns .001 m. 

 to .002"iong, horizontal — Spring — Gaza, and southward to Egypt. 



7. M. tricuspidata, L. Canescent, low, .15 m. to .20, 



diffusely branching from base. Leaves oblong, sinuate-pinnatifid, 

 with rounded lobes. Pods .06 m. long, .002 broad, spreading, woolly; 

 stigma corneal, with divergent or horizontal, awl-shaf>ed horns, equal- 

 ling or exceeding it in length — March and April — Sands along coast; 

 common. 



Fig. 15. 



1*0(1 of M. tricuspidata. 



8. Jfl. bicoruis, Sibth. et Sm. .4, ashy-puherulent, branch- 

 ing. Leaves oblong-lanceolate, pinnatifid, the upper linear, entire. 

 Pod§ .06 m. long, ,001 broad; stigma very short, obtuse, with horizon- 

 tal or incurved horns, 4 er 5 times as long as diameter of pod — April and 

 May — Fields; Jerusalem to Jordan Valley, Aintab, and northward. 



