Aster. rOiMPOSIT.'E. 321 



less lloccose-wooll}', or niinutoly granuloseglaiulular hut not puboscciit. — Asler {^ 

 filaginifolius, Hook. & Arn. Bot. J^eech. 14G. — Runs into various forms, of which 

 a common one with the lloocoso wool consi(leral)ly persistent on the stems and nar- 

 row leaves, and the involucre slightly if at all either glandular or squarrose, is the 

 original type of the species ; the more marked variant forms may be arranged under 

 the following varieties. 



Var. virgata, Gray. J>ecoming glabrate and the involucre more rigid and 

 glandular: heads usually numerous and corymbed or panicled. — C. virgata, lienth. 

 Eot. Sulph. 23. Aplopappns (?) {Pyrochnda) ILenkci, DC. Prodr. v. 349. (Hteuke's 

 plant is from Monterey, California, not Afexico.) 



Var. tomentella, Gray. Very white-woolly, at least when young, and the 

 loaves mostly shortoi- and broader. — C. tomentella, Torr. & Gray. AMer (1) tomen- 

 fe/lus, Hook. & Arn. 1. c. Diplopappufi leucophi/llus, Lindl. in DC. Corethrogyne 

 obovata, IJenth. 1. c. C. incana (() var., Benth. PI. Ilartw., is between the two vari- 

 eties, and unusually glandular. 



Open places, San Diego to Santa Cruz, and in the interior to 'J'ejon and the Yoseniite. Rays 

 violet, a quarter of an incli long. 



* * Bristles 071 the stylt-tips a dense and strong tuft : involucre hemhpheriral. 



2. C. Califomica, DC. Stems erect or ascending, a foot or more high ; the 

 branches rather equably leafy throughout and terminated by single pretty large 

 heads : leaves linear lanceolate or linear, chiefly entire : involucre broadly hemi- 

 spherical (nearly half an inch long) ; its scales mostly narrow and acute, in fewer 

 ranks, and the outer only moderately shorter, rather loose, all glandular-pubescent : 

 rarely some chaff on the receptacle among the outer flow(>i-s. — C. incana, Nutt. 

 in Trans. Am. Phil. See. n. ser. vii. 290 (e.vd. syn. Lindl.) ; Torr. <^: (j!my, l''l. ii. 

 98, the form with no chaff on the receptacle. 



Sandy soil, Monterey to San Diego : seldom collected. Rays light luuple. 



3. C. Spathulata, Gray. Stems decumbent, often a foot or so in length ; the 

 simple flowering branches 3 to 10 inches high, bearing single large heads : leaves 

 spatulate or obovate, obtuse, the larger half an inch to an inch wide, serrate at apex, 

 those of the flowering branches gradually reduced to subidate or linear : the hemi- 

 spherical involucre glandular ; its scales moderately unequal, and with loose herba- 

 C("nis tips: no cliaff on the recoptaclo. — Gray, Proc. Am. Acad. vii. 317. 



Mendocino and Humboldt Counties, near tlio eonst, at Shelter Cove and Fort Hrngg, Hohnuifr, 

 Kcllotjij. Heads as large as in the last : rays violet-hlno, half an ineh long. The dense white 

 wool sometimes deciduous from the leaves, which then heeome glandular-scahi-ous. 



21. ASTER, Linn., Benth. & Hook. 

 Head many-flowered, heterogamous ; the rays several oi- numerous in a single 

 series, fertile, very rarely neutral. Involucre imbricated ; the scales commonly with 

 herbaceous or foliaceous tips. Receptacle flat or convex, naked. Anthers tipped 

 with the usual lanceolate ovate appendage. Style-a]ipendages varying from trian- 

 gular-lanceolate to subulate. Akenes more or less compressed, rarely slender, 4-5- 

 nerved. Pappus simple, of copious slender scabrous capillary bri.stles. — Mostly 

 perennial herbs, Avith various alternate leaves, and solitary, corymbed, or panicled 

 heads ; flowering late. Rays white, purple, or blue : di.'^k-flowers yellow, often 

 turning purple : pappus dull white or tawny. 



An immense genus, especially in North Amerii-n, its lieadciumters, hut re!iinrknt>ly inronspiru- 

 0113 in California. For this flora at least it is best to receive it in tlio extended form which it 

 reassumes in Bentham and Hooker's (Jenera Tlnntarum. Tluiv arc no s|K'eics west of the Rocky 

 Mountains with cordate in-tioleil leaves. 



