162 COMPOSIT^E. Lessingia. 



plicate up to the nerve. — Linnfea, iv. 203; Gray in Benth. PI. Hartw. 315, 

 Proc. Am. Acad. vii. 351, viii. 3G4, & Bot. Calif, i. 306. — Flowering spring and 

 summer. 



* Flowers yellow, sometimes purplish in age; some of tlie marginal ones with conspicuously larger 

 and more or less irregular and radiatifor.n corolla: bracts of the involucre with herljaceous tips: 

 akenes narrow, compressed, 2-3-nerved : style-branches truncate-obtuse, bearing a brusli-like 

 tuft of bristles, in wliicii a minute or obscure setiforni tip is partly or wholly hidden : heads 

 about 3 lines high, terminating spreading slender branchlets. 



Li. Germanorum, C'II.v^^. 1. c. Low and diffusely spreading from the base, or procumbent, 

 arachnoid-lauate with appressed white tomeutum, glabrate with age; filiform flowering 

 branches sparsely leafy or naked : lower leaves spatulate and usually piunatifid or incised, 

 with long tapering entire base; those of the branches becoming linear and entire, all nar- 

 rowed at base : involucre hemispherical ; its bracts with loose and foliaceous tips or the outer 

 foliaceous, all glandless. — Torr. in Wilkes Exped. xvii. 326, t. 7 (style bad); Gray iu I'l. 

 Hartw. 1. c, & Bot. Calif. 307, only in part. — Open dry ground, near San Francisco and in 

 adjacent parts of California; first coll. by Chamisso. Corollas said by Chamisso to be 

 " croceous." 



L. glandulifera, Guvt. Diffusely much branched from an erect stem, more rigid, above 

 glal)rous or early glabrate: leaves more commonly entire, sometimes spinulose-dentate ; 

 those of the branches small and rery numerous (3 to 1 lines long), or minute and almost 

 covering flowering branchlets, ovate-lanceolate or oblong, thick and rigid, commonly beset 

 along the margins with yellowish tack-shaped glands : involucre campanulate to turbinate ; 

 its bracts more appressed, the outer successively shorter^ and some or all of them glaudulif- 

 erous. — Proc. Am. Acad. xvii. 207. L. Germanorum in part, & L. ramuloAa, var. tenuis, 

 Gray, Bot. Calif 1. c, in part. — Arid grounds, from Monterey to San Diego, San Ber- 

 nardino, &c. ; common. The glands are like those of Cal;/cadenia on a smaller scale, some- 

 times copious and strongly marked, sometimes few and inconspicuous. 



* * Flowers purple or white; the corollas all alike and regular or nearly so: bracts of the involu- 

 cre with appressed or erect tips : akenes less or hardly at all compressed, 4-5-nerved. 



•1— Stems slender and loosely branching, erec^, a span to a foot or two high : white wool deciduous 

 in age: leaves oblong to lanceolate or the lower spatulate, entire or sparingly dentate, the small 

 up]iur with partly clasping or adnate base: involucral bracts mostly herbaceous-tipped. 



L. ramulosa, Gray, 1. c. Somewhat granulose- or hirtellous-glandular on the glabrate 

 branches and upper leaves, occasionally with some minute tack-shaped glands : stem usually 

 stout at base: heads (3 or 4 lines long) terminating diffuse slender branchlets: involucre 

 campanulate or somewhat turbinate, 10-20-flowered : corollas short (purple): style-append- 

 ages with minute setiform tip, — On dry hills, not rare through the northwestern part of 

 California to Bay of San Francisco; first coll. by Pirkcrinrj and Brachenridije. 



Var. tenuis, Gray. A slender and ambiguous form, not thickened at base of stem, 

 low and diffuse, analogous to the depauperate states of the next species. — Bot. Calif, i. 307, 

 as to pi. of Rothrock iu Wheeler Rep. vi. 364. — Southeastern California, at head of Peru 

 Creek, Rothrork. 



L. leptoclada, Gray'. Glabrous after denudation of the floccose wool: stem slender (the 

 taller forms 2 feet or more high, the most depauperate only 3 or 4 inches), and with long 

 virgate or filiform branches bearing solitary or few- heads : upper leaves commonly with 

 sagittiform-adnate base: involucre turbinate, from 20-flowered down (in depauperate jilants) 

 to 5-flowered ; its bracts iu numerous ranks : corolla conspicuously exserted : style-append- 

 ages with a conspicuous subulate tip. — Proc. Am. Acad. vii. 351, & Bot. Calif. 1. c. — Dry 

 ground, common through the western and central parts of California, in very diverse forms ; 

 sometimes with numerous heads spicately crowded along the summit of the branches, and 

 too nearly approaching the next. 



Xj. virgata, Gray. More densely woolly : stem and virgate branches more rigid : upper 

 leav(!s appressed, concave, carinately one-nerved : heads spicately sessile, each in the axil of 

 a leaf of nearly the s.ame length : involucre cylindrical, woolly, 5-7-flowered : style-branches 

 with a conspicuous subulate tip. — PI. Hartw. 1. c ; Bot. Calif. 1. c. — On the Sacramento, 

 probably in the northern part of the State, Plrleriny and Brackenridge, Newberrij. 



