Aster. COMPOSITE. 321 



less floccose-woolly, or minutely granulose-glandular but not pubescent. — Aster (?) 

 filaginifolius, Hunk. A Am. lint. lieech. 1-16. — Buns into various forms, of which 

 a common one with the floccose wool considerably 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. 



V;ir. virgata, Gray. Becoming glabrate and the involucre move rigid and 

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

 Bot. Sulph. 23. Aplopappus (!) (Pyrochceta) Hcenkei, DC. Prodr. v. 349. (Haenke's 

 plant is from Monterey, California, not Mexico.) 



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

 leaves mostly shorter and broader. — C. tomentella, Torr. & Gray. Aster (?) toinen- 

 t.llnx. Hook. & Arn. 1. c. Diplopappus leucophyllus, Lindl. in DC. Corethrogyne 

 obovata, Benth. 1. c. C. incana (!) var., Benth. PL Hartw., is between the two vari- 

 eties, and unusually glandular. 



Open places, San Diego to Santa Cruz, and in the interior to Tejon and the Tosemite. Kays 

 violet, a quarter of an inch long. 



* * Bristles on the stylt-tips a dense and strong tuft : involucre kemisplierical. 



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

 branches rather equably leafy throughout and terminated by single pretty large 

 heads: leaves lineur-hmeeolate 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 chad' on the receptacle among the outer flowers. — C. incana, Mutt. 

 in Trans. Am. Phil. Soc. n. ser. vii. 290 (excl. syn. Lindl.) ; Torr. & Gray, FL ii. 

 98, the form with no chaff on the receptacle. 



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



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 ohovate, obtuse, the larger half an inch to an inch wide, serrate at apex, 

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

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

 ceous tips: no chaff on the receptacle. — Gray, Proc. Am. Acad. vii. :?17. 



Mendocino and rlumboldl Counties, uear the coast, at Shelter Cove and Fori Bragg, Bolander, 

 Kellogg. Heads as large as in the last : rays viol.t-l.lin-. hall' an inch long. The dense white 

 wool sometimes deciduous from the leaves, which then become glandular-scabrous. 



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



Bead many-flowered, heterogamous ; the cays several or 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 lam late ovate appendage. Style-appendages varying from trian- 

 gular lanceolate to subulate. Akenos more or less compressed, rarely slender, l-. 1 )- 

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

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

 heads; flowering late. Rays white, purple, or blue: disk-flowers yellow, often 

 turning purple: pappus dull white or tawny. 



An immense genus, especially in North America, its headquarters, bul remarkably [neon 

 ous in California. For this (loi i at Ii isl it is best to receive ii in the extendod form which ii 



reassnmes in Bcntl and Hooker's Gonera Plantarum. Thero ore no species wcsl of the R 



Mountains with cordate petiolcd leaves, 



