440 COMPOSITE. (COMPOSITE FAMILY.) 



* * Heads discoid. 



2, m. aurea, L. BdMnij © .1 to .25, branching from neck ; 

 stems slender, ascending. Leaves pinnatipartite into setaceous, entire 

 or 3-fid lobules. Heads .005 broad ; receptacle ovate^ akenes minute, 

 bald, or -with an oblique ear-like crown — Spring — Common through- 

 out, even in deserts. A fragrant plant, the infusion of which is much 

 used as a febrifuge and carminative. 



39. BRO€€IIIA, Visiani. Brocchia. Afracli. Sekrdn. 

 Qurlaydn. Qurbiydn. 



Heads many-flowered, discoid, homogamous. Involucre imbricat- 

 ed, scales shorter than disk. Receptacle hemispherical, naked, papil- 

 lose. Flowerets all perfect, corolla-tube translucent, compressed, limb 

 4-toothed. Akenes obovate-oblong, somewhat compressed, striate, apex 

 rounded, bald — Annual herbs with aspect of Cotula, distinguished 

 from Pyrethrum by the bald akenes, and 4-lobed corolla. 



B. cinerea, Del. © .1 to .25, grey-velvety, branching from 

 neck ; stems ascending, simple or sparingly branched. Leaves .01 to 

 .015 long, wedge-shaped, pinnatifid or toothed toward tip. Heads 

 .005 broad — February to May — Et-Tih to Sinai, and Egypt. 



40. ARTEMISIA, L. Wormwood. BiCaiterdn. Edbaq-er-RaH. 



Heads discoid, homogamous or heterogamous, the marginal 

 flowerets in 1 row, pistillate, with a deeply 2-cleft, exserted style ; disk 

 flowerets perfect, fertile, or sterile by abortion of ovary. Involucre 

 imbricated, scales scarious at margin. Receptacle naked or hairy. 

 Anthers ending in a stiff, somewhat awl-shaped, rarely oblong point. 

 Akenes obovate, ribless, bald — Shrubs or herbs, with or without 

 woody base, with small, commonly panicled heads. 



* Receptacle nalced. 



t Flowerets of rays pistillate, of dish perfect, sterile. Perennials. 



1. A, monosperma, Del. ^Adah. 5 -^ to .7, glabrous ; 

 stems thick, ascending, diffuse or erect, ending in a long, pyramidal, 

 many-flowered panicle. Leaves of sterile shoots pinnatisect, of stem 

 short, frequently clustered, simple, linear, or trisect into linear lobes. 

 Heads crowded, short-pedicelled, nodding, ovate, few -flowered ; in- 

 volucre glabrous, scales gradually enlarging from without inward, the 

 outer orbicular, the inner oblong ; pistillate flowers 2, perfect 8-10, seed 

 usually 1 — August to November — Coast to et-Tih, Sinai, and Egj^t. 



1 1 Heads homogamous. Perennials. 



2, A, Herba-Alba, Asso. 5 SMh. Ghureirah. .3 to ,5, more 

 or less woolly-canescent, branching from base, stems ending in an ob- 

 long panicle, with spreading, rigid branches. Leaves of sterile branches 

 petioled, ovate-orbicular in outline, bipinnatipartite into oblong to 

 oblong-linear lobes, those of fertile branches much smaller, few-lobed 

 and clustered ; bracts very small, ovate. Heads sessile, oblong, 3-4- 

 flowered ; outer scales very small, orbicular, concave, inner oblong to 

 oblong-linear, larger — September to December — Dry places ; table- 

 lands and deserts of interior, especially in salty ground. 



