Aphanostephua. OOMPOSIT^E. 163 



+- -i- Depressed or dwarf, flowering from the ground: inner bracts of involucre cartilaginous- 

 arista te ! 



L. nana, Gray, 1. c. Usually stemless, a very woolly and pellet-like tuft from a slender root, 

 an inch or two high, a cluster of sessile (half -inch long) heads, each surrounded by a rosulate 

 cluster of spatulate or lanceolate leaves : involucre 10-12-flowered ; its outer bracts linear- 

 lanceolate, mucronate-acute or cuspidate, little herbaceous ; inner ones pearly white, scarious- 

 chartaceous, tapering into a rigid subulate acumination or awn which equals the flowers and 

 very rufous pappus : akenes short and turgid : tip to the tufted style-appendages wanting. — 

 Torr. in Wilkes Exped. xvii. 338, t. 7, poor. — Dry ground, foot-hills of the Sierra Nevada, 

 from Siskiyou Co. to Kern Co., Pickering, Fitch, Muir, Canby, Rothrock. 



Var. oaulescens. Leaves larger; radical ones much surpassing the sessile heads in 

 their axils : also several developed stems, of an inch to 4 inches high, sparsely leaved, and 

 bearing either solitary or 3 or 4 spicately disposed heads. — S. California, at Tehachipi Pass, 

 Parry. 



35. BELLIS, Tourn. Daisy. (Latin name, from bellus, pretty.) — Low 

 herbs, of the northern hemisphere ; the typical species perennial and stemless : 

 radical leaves obovate : rays white, rose-colored, or purple. The akenes in the 

 two perennial Mexican species, viz. B. xanthocomoid.es (Brachycome, Less.) and 

 B. Mexicana, Gray, PI. Wright, i. 93 (coll. Wright and Bourgeau), as also in our 

 annual species, are less flat, and marginal nerves slender or less thickened, than 

 in the Old World species. — Benth. & Hook. Gen. ii. 265. 



B. perenxis, L., the common European Daisy, is escaping from cultivation and beginning 

 to be spontaneous in a few places. 



B. integrifolia, Michx. Annual, sparsely pilose-pubescent, diffusely branched and leafy, 

 a span to a foot high : leaves spatulate-obovate and the upper narrower, entire : peduncles 

 terminating the branches : bracts of the involucre ovate-lanceolate, acuminate, scarious-mar- 

 gined: rays half-inch or less in length, usually pale violet. — Fl. ii. 131 ; Hook. Bot. Mag. 

 t. 3455 ; Torr. & Gray, Fl. ii. 189. Eclipta integrifolia, Spreng. Syst. iii. 602. Astranthium 

 integrifolium, Nutt. Trans. Am. Phil. Soc. ser. 2, vii. 312. — Low grounds, Kentucky to 

 Arkansas and Texas ; fl. spring and summer. 



36. APHANOSTEPHUS, DC. (A<£av»7?, vanishing or inconspicuous, 

 and <rrecl>os, crown ; from the pappus.) — Texano-Mexican annuals or biennials, 

 sometimes perhaps of longer duration, pubescent, leafy-stemmed and branching ; 

 With rather showy heads, resembling those of Daisy, on solitary peduncles termi- 

 nating the branches, and nodding before anthesis : leaves from entire to pinnately 

 lobed : rays from white to violet-purple : akenes almost or quite glabrous. Fl. 

 cummer. — Gray, PI. Wright, i. 93; Benth. & Hook. Gen. ii. 202; Gray, Proc. 

 Am. Acad. xvi. 80. Aphanostephus, Keerlia (excl. one species, which is a Xantho- 

 cephalum), & Leucopsidium, DC. Prodr. v. 309, 310, vi. 43. 



# Pappus a very short crown with a ciliate-fringed edge, which commonly is obsolete in age: base 

 of the corolla-tube seldom thickened. 



A. ArizonicUS, Gray. Erect, a foot high, minutely soft-pubescent, not cinereous : upper 

 leaves linear and entire ; lower liuear-spatulate, 3-5-lobed or laciniate : heads small, on at 

 length clavate-thickened peduncles: akenes narrow, terete, evenly striate with about 10 nar- 

 row ribs. — Proc. Am. Acad. xvi. 81. A. ramosissimus, Rothrock in Wheeler Rep. vi. 147. 

 — Arizona, on the Gila River, Rothrock. 



A. ramosissimus, DC. Erect or at length diffuse, slender, a foot or less high, hispidu- 

 lous-pubescent : upper leaves linear or lanceolate, entire or few-toothed ; lower laciniate- 

 pinnatifid or incised : heads on slender peduncles : rays 3 to 5 lines long : akenes almost 

 terete and even, the ribs or nerves few and mostly obscure, except on some outermost. — 

 Prodr. v. 310 ; Gray, PI. "Wright. 1. c. ; Torr. in Marcy Rep. t. 9. A. Riddellii, Torr. & Gray, 

 Fl. ii. 189. A. pilosus, Buckley in Proc. Acad. Philad., a remarkably hispid form. Egletes 



