342 PROCEEDINGS OF THE AMERICAN ACADEMY. 
branches enlarged at tip, short-appendaged. Achenes corky-winged, 
sometimes meniscoid, with a cupule in place of pappus.— Leptosyne 
sect. Euleptosyne Gray, Syn. FI. i. pt. 2. 299 (1884).— Two species of 
Arizona, California, and northern Lower California. 
* Achenes — i clavellate hairs on both ages ee with 
ed annulus; leaf-divisions nearly 
Sats oP Dectiati (DC.) Hall. Scapes solitary or aie 1-3.5 dm. 
J keh high; leaves chiefly in a dense basal tuft, entire or mostly 1- 2-pin- 
nately dissected into linear-filiform lobes, 2-10 cm. long; outer in- 
volucral scales linear, 5=8 mm. long; inner yellow, scarious-margined, 
multinervose, ovate, slightly longer — Univ. Calif. Pub. Bot. iii. 140 
(1907). Leptosyne Douglasii DC. Prod. v. 531 (1836). LL. californica 
Nutt. Trans. Am. Philos. Soc. ser. 2. vii. 363 (1841). L. Newberryr 
Gray, Proc. Am. Acad. vii. 358 (1868).— Southern California and 
southern Arizona; also San Quentin, Lower California, 1889, Palmer 
677. 
* * Achenes without clavellate hairs, glabrous on outer face, more or less 
papillose on inner; annulus nearly or quite glabrous; leaf-divisions about 
1-1.5 mm. broad 
12. C. Stillmanii (Gray) Blake, n. comb. Somewhat stouter than 
last, more leafy below; corky margin of achene rugose.— Leptosyne 
Stillmanii Gray, in E. Durand, Journ. Acad. Nat. Sci. Phila. iii. 91 
(1855), and in Torr. Bot. Mex. Bound. 92 (1859). L. Stillmani Gray, 
Bot. Calif. i. 356 (1876).— Cauirornta: Calaveras Co., Heermann; 
valley of the Sacramento, Stillman (TYPE in Gray Hab.) hillsides, 
Auburn, April 1865, Bolander 4520; dry sand hills, Antioch, 16 April 
1868-9, Kellogg & Harford 439; fields, Middle Tule River, 240-305 m., 
April-Sept. 1897, iia cose ae 
COREOCARPUS Benth. (xédpis bug, and xapzwés fruit, from 
the peculiar achenes). Heads heterogamous, radiate, the flowers all 
yellow; rays styliferous, fertile, disk-flowers mostly fertile. Involu- 
cral scales 5-8, 2-rowed, subequal, submembranaceous, dark-lineate, 
ovate to ovate-oblong, the outer obtusish, the inner acuminate; heads 
sometimes with a few bractlets at base. Receptacle flat, with narrow 
membranaceous pales subtending the flowers. Ligules small, 4-5- 
nerved, entire or emarginate; disk-corollas regular, tubular, with 
slightly enlarged funnelform throat and 5-toothed limb, with a hairy 
annulus at base of throat. Style-branches with subulate hispid — 
dages. Anthers entire at base. Achenes obcompressed, wi 
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