CRUCIFERiE. (MUSTARD FAMILY.) 71 



lobed. Seeds in one (rarely, in part, in two) rows — Annual or biennial 

 herbs with yellow, white, or pink flowers. 



* Flowers .002 long^ cream-colored, or white. Pods fiattened, l-nerved. 



1. S. puinilum, Steph. .02 to .3, scabrous with short, branch- 

 ing hairs. Root-leaves obovate-oblong, sinuate-dentate or pinnatifid; 

 stem-leaves oblong, sagittate, entire. Flo^^ers cream-colored ; pods .015 

 to .03 long, .001 broad, spreading, sTiort-jjedicelled, incurved, puberulent, 

 longitudinally veined — Spring — - Aleppo to Damascus, Antilebanon 

 plateau, w^alls of Jerusalem, Arabia Petrsea, and eastward. 



2. S. Thaliaiium, L. Mouse-ear Cress. .3, sparingly pilose, 

 with simple, or branching hairs. Root-leaves rosetted, oblong, taper- 

 ing to a petiole ; stem-leaves linear-oblong, sessile ; all remotely denticu- 

 late. Flowers white; pods .015 to .02 long, .001 broad, spreading, ^j€6?i- 

 cels .012 lo?ig, straight, or incurved, glabrous — Spring — Lebanon 

 and Antilebanon; Husn Suleiman (Nusairy Mountains). 



3. S. nudum, BSlang. .05 to .12. Lbb^ycs all radical, minute, 

 oblong, entire, or somewhat dentate. Flowers cream-colored; pods 

 .02 to .03 long, .001 broad, short pedicelled; erect — Spring — Anti- 

 lebanon. A plant with habit of Erophila, having usually numerous 

 scapes from the neck. 



Var. brachycarpum, Boiss. Pods .015 to .02 long; valves 

 longitudinally nerved. Seeds, in part, in two rows — Lebanon. 



* M 



Flowers .003 long, pinJc. Pods cylindrical, 1-nerved. 



4. S. §chimperi, Boiss. .08, ashy-puberulent. Leaves 

 bipinnatisect, with small, oblong, obtuse lobes. Raceme few-flowered ; 

 pods .04 long, .001 broad, short-pedicelled, spreading, somewhat re- 

 curved, stellate-puberulent — Spring — Moab {Tristram), Sinai, and 

 eastward. A plant with the habit of S. Sophia, but having a septum 

 destitute of nerves. 



* * * Flowers .003 long, yelloio. Pods cylindrical, 1-nerved. 



5. S. §ophia, L. .4 to 1, ashy-puberulent or glabrous; stem 

 branching. Leaves M-tri-pinnatisect into minute, oblong-linear, acute 

 lobes. Racemes many-flowered; pods .02 to .04 long, .001 broad, erect- 

 spreading, glabrous; pedicels .01 long — April to June —Roadsides 

 and waste places ; common throughout. Distinguished from plants of last 

 section by having 1-2 nerves in the septum. 



* * * * Flowers .002 to .Oli long, yellow. Pods terete, septum ^-nerved. 



t Fruiting pedicel very short, as thicTc as pod. Septum thick. 



6. S. Columnar, Jacq. @ .3 to .5, more or less loosely hirsute. 

 Leaves runcinate-pinnatipartite ; lobes of lower leaves ovate-oblong, 

 dentate, loith an ascending auricle at base; lobes of upper leaven linear or 

 lanceolate, the terminal hastate. Flowers .006 to .01 long; calyx erect; 

 pods. 09 long, .0015 broad, horizontal, sparingly hirsute or glabrescent— 

 May to July — Fields and roadsides ; Lebanon, Antilebanon, and 

 Gilead to Damascus, Hems, Aintab, and northward. 



