86 CRUCIPER^. (MUSTARD FAMILY.) 



* * * Silicles convex^ canescent ; cells 2-ovuled. Filammts toothless. Annuals. 



21. A. Daina§ceiiuiii, Boiss. et Gaill. .1, asliy, branching 

 from base. Leaves all ohovate to otovate-oblong . Flowering racemes 

 dense ; petals bifid. Fruiting racemes .02 to .03 long ; silicles scm-fy, 

 orhicular, .002 long ; style as long as pod, or shorter ; seeds wingless 

 — Spring — Fields ; Damascus. QaldHn. Deir 'Atiyeh. 



22. A, calyemum, L. © .08 to .25, branching from base. 

 Lower-leaves obovate, upper oUanceolate to ohlong-linear, all silvery. 

 Flowering racemes dense ; fruiting loose .08 to .1 long ; sepals p)er sis- 

 tent in fruit ; silicles orbicular, retuse, .003 long, with Jlattened margin ; 

 style almost ; seeds narrowly margined — Sj^ring — Jebel Qaisun, 

 Damascus. 



* * * * Silicles flattened, glabrous ; cells d-Q-seeded. Filaments dentate. 

 Petals twice as long as calyx. Annuals. 



23. A. aureum, Fenzl. .1, branching from base. Leaves 

 oblong-linear. Silicles elliptical .006 long, .003 broad ; styU half as 

 long as pod — Spring — Jerusalem to Hauran, Aleppo, and northward. 



24. A. meniocoides, Boiss. As above, with linear-suhidate 

 leaves, and short style — Spring — Mountains near Damascus, Deir 

 'Attyeh, and northward. Too near the last. 



Calyx erect, equal at base. Petals entire or retuse. Filaments 

 toothless. Stigma capitate. Silicles lenticular or elliptical, flattened 

 or (in ours) turgid. Seeds in 2 rows, often numerous, not margined 

 — Annual or (in ours) perennial, dwarf herbs, usually tufted, with 

 white or (in oui's) yellow flowers, and undivided leaves. 



* Leaves piectinate-ciliate. Cells few-ovuled. 



1. D. Olympica, Sibth. If .1 ; tufts broad, dense. Leaves 

 nan'owly linear, acute. Stamens scarcely longer than calyx. Silicles 

 small, turgid, elliptical, 5-6 times as long as styl^. — Summer — Rocky 

 places in alpine regions. 



Var. beterocoma, Boiss. All the leaves erect, or lower reflexed. 

 Scapes glabrous. Fruiting racemes often elongated. Pods haiiy — 

 Amanus, and northward. 



2. D. oxycarpa, Boiss. 2f .02 to .06 ; tufts small, dense. 

 Leaves oblong to linear, acute. Stamens nearly as long as corolla. Fruit- 

 ing racemes umhel-like ; silicles scabrous with minute stellate hairs, 

 ovate-lenticular, long -acuminate, .007 long, exclusive of the .^^Z fiUfm^m 

 style — May to August — Alpine regions of Lebanon and Hermon. 



* * Leaves villous. Cells lG-24:-ovuled. 



3. D. vesicaria, Desv. 71 .01 to .05 ; tufts obconical, very 

 compact. Leaves densely imbricated, oblong, acutish, villous with 

 branching hairs intermixed with simple bristles. Sepals scabrous, 

 scarious-margined. Petals nearly twice as long as calyx. Stamens as 

 long as calyx. Silicles scabrous with short stellate hairs, elliptical, .005 



