82 CRUCIFEKiE. (mustard FAIMI^Y.) 



1. K.. Lybica, Viv. Prostrate, Leaves lanceolate-linear, 

 obtuse. Silicles beset with 2-parted hairs ; cells 4-5 seeded — Spring 



— Desert of Moab iTristram), Et-Tih. 



2. K.« AraMca, Boiss. DlialiMydn. Prostrate. Leaver-ob- 

 long-spathulate or linear, obtuse, tapering into a petiole. Silicles 

 sparingly hairy ; cells 1-2 seeded — Spring — Borders of Et-Tih and 

 southward. 



To this genus belongs the Siceet Alyssum, K. maritima, L., which 

 is found sparingly, escaped from gardens. 



32. ALY^SSrn, L. AMsim. 



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

 cream-colored. Silicles obovate, orbicular, elliptical, or lenticular ; 

 cells 1-2 or 4-6 ovuled ; septum nerveless with fine transverse venules 



— Annual or perennial, stellate-woolly or scurfy herbs. 



* Silicles flattened or convex, cells 1-ovuled. Filaments toothed. 



t Perennials, 



X Low .1 to .3. Lower-leaves less than .01 long. Silicles not over .004 long. 



1. A. alpestre, L. 11 Shrubby at base. Leaves obovate or 

 oblong, the upper often lanceolate-linear. Flowers .002 long ; petals 

 obovate, sometimes retuse. Fruiting racemes rather long, dense. Sili- 

 cles otovate, to ovate-elliptical, .002 to .003 long, .0015 to .002 broad, 

 more or less stellate-woolly ; style nearly as long as pod ; seeds wing- 

 less — Summer — Alpine and subalpine regions of Lebanon, Antileba- 

 non, Amanus, and northward. 



Var. g^eiiiiinuiii, Boiss. Appressed-canescent ; stems slender, 

 .1 to .2 long, prostrate er ascending, tufted. 



Var. sufTriiticeiis, Boiss. AjDpressed canescent ; stems ascend- 

 ing, .2 to .3. 



Var. oboTatiim, Boiss. As in preceding, but leaves all obovate- 

 spathulate, obtuse. 



Var. miiiutifloruin, Boiss. Scurfy. Summit of Sunnm. 



2. A. condensatuin, Boiss. et Haussk. If or (f) Scurfy, leaves 

 silvery white ; stems indurated at base, ascending, .12. Leaves minute ; 

 obovate-oblong, obtuse, tapering into a petiole. Flowers larger than 

 in last ; petals obovate. Fruiting racemes iLmhel-lilee, contracted, corym- 

 hose. Silicles narrowly elliptical, .004 long, .0015 broad, tapering at 

 base, obtuse ; style one-third to one- half as long as pod — Summer 



— Subalpine regions of Amanus, and Akherdagh and northward. 



X X Tall, .3 to .8. Lower-leaves more than .01 long, obovate or linear- 

 spathulate. Silicles not more than ,005 long. 



3. A, constellatum, Boiss. 11 .5 or taller, scurfy ; stems 

 herbaceous, reddish, loosely corymbose paniculate. Leaves oblong- 

 spathulatc, .04 long, .01 broad, tapering gradually into a petiole. 

 Fruiting racemes contracted, umbel-like, corymbose ; silicles scurfy, 



