404 DIPSACE2B. (teasel FAMILY.) 



Var. microcephala, Boiss. Slender. Lower leaves lanceolate, 

 nearly entire, upper pinuatipartite at base. Flowering lieadi .01 broad ; 

 involucre nearly as long as lilac, short-radiating corollas ; awn. some- 

 what exserted — Co^st to Coelesyria, Damascus, and northward. 



9. S. Aucliert, Boiss. .02 to .1, pubescent ; stems simple or 

 branching. Leaves linear-lanceolate, lower undivided, upper with a 

 pair of small lobes at base. Involucre longer thsm Jlesh- colored flowers ; 

 tube of involucel hairy, shorter than pits ; crown 20-24-nerved ; awns 

 included — Spring — Jerusalem to Antilebanon, Damascus, Palmyra, 

 Aleppo, and eastward. 



10. L<. rotata, M.B. .1 to .2, pubescent ; stems simple or 

 branching. Leaves oblong-lanceolate to linear, lower undivided, upper 

 with 1-2 pairs of minute lobes at base. Involucre longer than reddish 

 flowers ; tube of involucel hairy, scarcely shorter than pits ; crown 30- 

 36-nerved ; awns exserted — Spring — Aiutab to Marash, and north- 

 ward, and eastward. 



Var. Persica, Boiss. Slender. All the leaves pinnately divided 

 into oblong-linear and linear lobes. Heads .01 to .02 in diameter ; 

 flowers radiating ; awns exserted — Aintab, northward, and eastward. 



6. PTEROCEPHAL.US, Vaill. Pterocephalus. 

 Tube of involucel 8-grooved or striate, ending in minute teeth or a 

 short crown. Calyx-limb short-stipitate, with 12-24, plumose awns. 

 Corolla 5-fid. Receptacle hairy or naked — Herbs or shrubs. 

 * Annuals. Floioers pinh, Mue, or purple. 



1. P. pluinosus, L. © .3 to .8, viscid-pubescent, branching 

 above. Lower leaves oblong-elliptical, crenate-dentate, undivided or 

 lyrate^ upper pinnatipartite into linear -lanceolate to linear hies, the ter- 

 minal hie much larger. Involucre as long as or loDger than pink or 

 lilac flowers ; involucel truncate-denticulate ; awns 11-12, scarcely 

 twice as long as tube — Spring — Rocky hills ; common along coast, 

 and in lower mountains and interior plains. 



2. P. involHcratiJS, S. et S. .15 to .4, pubescent and 

 hairy, viscid ; stems forked, much branched. Leaves pinnatisect into 

 ohhng-linea?', ;:)^?l?^at//^'i, decurrent lohes. Involucre as long as or longer 

 than pink to blackish-purple flowers, larger leaves 2-4-lobed at base ; 

 involucel truncate, ending in a small, membranous crown ; awns 12, 

 once and a half as long as tube — Spring — Dry hills ; same range as 

 last, but rarer. 



* * Shrubby perennials. 

 t Flowers pinJc, scarcely radiating. 



3. P. §anctu§, Decaisn. ^ Samma. .3, pubescent-viscid ; 

 ])ranches 1-5-headed. Leaves .025 long, obovate-dentate to lyrate-pin- 

 natipartite, with short, obtusely dentate lobes, the terminal longer than 

 the others. Crown of involucel hairy, short, crenate ; awns 20-24 — 

 Spring — Sinai. 



1 1 Phwers yelhw. 



4. P. Araf>icu§, Boiss. .04 to.l, shrubby, crisp-appressed- 

 canescent ; branches 1-3-headed. Leaves linear-lanceolate in outline, 

 .02 to .03 long, .003 to .006 broad, dentate or pinnatijid to middle, with 

 short triangular lohes. Involucre as long as or longer than flowers ; 

 crown of involucel entire ; awns 16 — Spring — Tih escarpment. 



