LarjophjUa. • COMPOSITiE. 367 



rather firm seaiious cup-like small pappus, its margin ciliate and obscurely fimbriate. Disk- 

 akenes nearly 2 lines long, oblong-turbiiiate, and with a broad terminal depressed areola, bordered 

 with the pa^ipus of about 20 equal and rather stout barbate-plumose awns, of fully a line iu 

 length. All the outer, and sonictiuics all but one or two of the inmost disk-akeiies are seed- 

 bearing. On account of the aiionialoiis papinis to the disk-flowers this species might besought 

 for in'the group to w\nc\i Blciiluiriii'tiiiiiis licliuigs, and which it much resembles in the disk- 

 paiipus. It really forms a new section iu the present genus. 



58. LAGOPHYLLA, Nutt. 



Head several-flowered, heterogamous, with about 5 pi.stilLite fertile rays, and as 

 many hermaphrodite but sterile disk-flowers. Involucre of as many herbaceous 

 scales as ray-flowers, which are flat on the back, with margins at base infolded, so 

 as to completely enclose their obcompressed akenes, and commonly 2 or 3 looser 

 and more foliaceous empty exterior ones or bracts, lieceptacle small and flat, 

 bearing a series of 5 or 6 distinct chaffy scales, subtending disk-flowers. liays cunei- 

 form, palmately 3-cleft or parted : disk-corollas 5-lobed. Akenes of the ray more 

 or less obcompressed, obovate-oblong, smooth, nearly straight, pointless; those of 

 the disk slender and abortive, all destitute of pappus. — Soft-villous or hirsute 

 annuals, of California and Oregon ; with repeatedly branching sfender stems, alter- 

 nate or opposite mostly entire leaves, and small heads of pale yellow or apparently 

 ■white flowers. 



% Leaves chiefly cdternate : heads leafy-hracteate. 



1. L. ramosissima, IS'utt. A foot or two high, at length paniculately very 

 much branched : lower leaves oblanceolate or linear-lanceolate and somewhat silky- 

 hirsute (an inch or two long) ; the ui)per and those of the branchlets successively 

 smaller and copiously villous with long and soft hairs, especially along their mar- 

 gins, often becoming concave or involute when dry : heads almost sessile, clustered 

 on the leafy branchlets : rays hardly exserted, yellow : fertile akenes carinately one- 

 nerved down the inner face. — Torr. & Gray, Fl. ii. 402. L. minima, Kellogg in 

 Proc. Cahf. Acad. v. 53. 



Dry hillsides, common through the middle and nortliern part of the State, and in adjacent 

 parts of Oregon and Nevada. Stems brittle : leaves early deciduous from the stems and the 

 at length smooth filiform branches. 



2. L. dichotoma, Bcnth. A foot or so high : leaves more strigosely pubescent ; 

 the cauline ones spatulate and often coarsely crenate, those of the brancldets and 

 bracts hirsutely ciliate : heads sessile in the forks of the repeatedly dichotomous 

 almost naked branches, and terminating their filiform peduncle-like extremities : 

 rays much exserted, apparently wliite : fertile akenes concave and nerveless (but 

 minutely striate) on the inner ftice. — PL Hartw. 317. 



Plains of the Sacramento and Feather Rivers, HarUnrg, Fitch, Bigclow. Heads larger than in 

 the preceding ; the ligules conspicuous, about 3 lines long. 



* % Leaves commonly or mostly ojyposite : heads wihed, terminal, slender-peduncled. 



3. L. filipes, Gray. A span to a foot liigh, ])aniculatcly branched, soft-villous, 

 and with some small stipitate glands : leaves linear ; some of the lower cauline 

 sparsely laciniate-denticulate (2 or 3 inches long) ; those of the branchlets short 

 (4 to 2 lines long), not cihate : head small, bractless, on a filiform peduncle : rays 

 exserted, apparently white. — Pacif. R. Pep. iv. 109, & j\[ex. Bound. 101. 

 Hemizonia filipes, Hook. & Arn., apparently, l)ut the specimens of Douglas not 

 seen. 



California, Douglas. On the Sacramento, Fitch, Xcwhcrry, &c. Seemingly a rare species. 

 Akenes not yet known. 



