162 COMPOSITE. Lessiufjia. 



plicate up to the nerve. — Linntea, iv. 203; Gray in Benth. PI. Hartv/. 315, 

 Proc. Am. Acad. vii. 351, viii. 364, & Bot. Calif, i. 306, — Flowering spring and 

 summer. 



* Flowers ycllo\y, sometimes purplish in a!2;e; some of the marginal ones witli conspicuously larger 

 and more or less irregular and radiatifor.a corolla: bracts of the involucre with lierbaceous tips: 

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

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

 a'Huit 3 lines high, terminating spreading slender branclilets. 



L. Germanorum, Cii.v:\r. 1. c. Low and diffusely spreading from the base, or procumbent, 

 ararluiuid-lanate with appressed white tomeutum, glalirate witli age ; filiform flowering 

 branches sparsely leafy or naked : lower leaves spatulate and usually pinnatifid 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 

 foliaeeous, all glandless. — Torr. in Wilkes Exped. xvii. 326, t. 7 (style bad); Gray iu PI. 

 Hartw. 1. c, «&. Bot. Calif. 307, only in part. — (;)pen dry ground, near San Francisco and in 

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

 " croceous." 



Li. glandulifera, Gka.t. Diffusely much branched from an erect stem, more rigid, above 

 glabrous or early glabrate : leaves more commonly entire, sometimes spinulose-dentate ; 

 those of the jjranches small and very 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. r amitJ osa, \nr. tennis, 

 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 Cali/cadenia on a smaller scale, some- 

 times copious and strongly marked, sometimes few and inconspicuous. 



■i/f * 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 hardl}'' at all compressed, 4-5-nerved. 



-)— Stems slender and loosely branching, erect, 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 

 upper with partly clasping or adnate base: involucral bracts mosth' herbaceous-tipped. 



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

 branches and iipper leaves, occasionally with some minute tack-shaped glands : stem n.suallr 

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

 campanulate or somewhat turbinate, ld-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 Pickering and Brackenridgc. 



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 llothrock iu Wheeler Kep. vi. 364. — Southeastern California, at head of Peru 

 Creek, Both rock. 



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-adaate base: involucre turbinate, from 20-flowered down (in depauperate plants) 

 to 5-flowered ; its bracts in 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. 



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

 leaves appressed, concave, carinately one-nerved ; heads spicately sessile, each in the axil of 

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

 with a conspicuous subulate tip. — PI. Ilartw. I.e.; Bot. Calif, he. — On the Sacramento, 

 .probably in the northern part of the State, Pickering and Brackenridge, Newberri/. 



