COMPOSIKJE. (composite FAMILY. ) 429 



11 A. fragrantissima. 



* * Rays numerous, large. Scales of involucre soon deciduous. 



12 A. membranacea. 



1. A. Millefofliuiti, L. 2f Milfoil. .5 to .8; stem erect, simple 

 or branching above. Leaves appressed-hairy, oblong -lanceolate in out- 

 line, 2-pinnatipartite into linear, acute, mucronate, often 2-3-fid lobes. 

 Corymb dense, compound ; heads .004 long ; rays white or purplish — 

 Summer — Damascus. 



2. A. setacea, M K. % .3 to .8 ; stem erect, simple. Leaves 

 somewhat villous, linear-lanceolate, bipinnatisect into crowded, linear, 

 mucronate lobes. Corymb dense ; heads oblong, .003 long ; rays white 

 or cream-colored — Summer — Amanus to Aleppo, and northward, and 

 eastward. 



3. A. odorata, Koch. 1^ .3 to .4, appressed-canescent, rarely 

 green ; stem simple or slightly branching above. Leaves obovate-ob- 

 Joug, to oblong-lanceolate in outline, the lower bipinnatisect into ob- 

 long, acute, nearly entire lobes, the upper pinnatipartite into linear-ob- 

 long, toothed segments. Heads .003 long ; rays white — May to Octo- 

 ber — Alpine and subalpine Lebanon. 



4. A. I^ig-ustica, All. % .5 to .8, appressed-hirsute, glandular- 

 punctate ; stem furrowed, ■yery leafy, simple or branching above. 

 Leaves ovate in outline, bipinnatisect, primary segments about 3 on 

 each side, cut into divergent, oblong, acute, entire or few-toothed and 

 cut lobes. Corymb compound ; heads oblong — ^ Summer — Between 

 Ehedin and the Cedars. 



5. A. micraiitlia, M.B. If .5 to .8 ; stem erect, simple or 

 branching from base. Leaves villous, oblong-linear in outline, bi- 

 tripinnapartite into minute, linear lobules. Corymb dense, compound ; 

 heads .004 long, ovate ; rays one-third as long as involucre — April to 

 June — Dry hills and fields ; coast to middle mountain zone, and in- 

 terior plains. 



6. A. toiiieiito§a, L. If Villous ; stems slender, somewhat 

 rigid, simple, low. Leaves lanceolate-linear in outline, pinuatisect, 

 segments numerous, short, transverse, crowded, digitately parted into 

 3-7, oblong, mucronate lobules ; upper leaves narrower, pectinate. 

 Corymb compound ; rays half as long as involucre — Summer — Moab 

 (Paine). 



7. A. Saiitolina, L. If .2 to .6 ; stems terete, simple or 

 branching below, canescent. Leaves pubescent ; segments of lower 

 leaves and those of young shoots somewhat distant. Corymbs compound ; 

 peduncles shorter or a little longer than .005 long heads ; scales of in- 

 volucre oblong obtuse ; rays yellow, very short — April to June — Dry 

 hills and sandy places ; middle mountain regions and interior plains. 



8. A. faleata, L. 5 Qaisun. .3 to .8, woody at base ; stems 

 pannous, terete, simple. Leaves canescent, linear-terete, at length 

 falcate ; segments minute. Corymb compound ; peduncles twice to 

 four times as long as .004 long heads ; rays sulphur-colored, one-third 

 to one-half as long as involucre — April to September — Dry places ; 

 subalpine Lebanon, Antilebanon, and interior plains. 



