420 COMPOSITE. Microseris. 



lovii, Gray, Pacif. R. Rep. iv. 164, t. 17. — Common in the district around San Francisco 

 Bay, California, and south to Tulare Co.; first coll. by Bigelow. 



M. Douglasii, Gray. Rather coarser : scapes 8 to 20 inches high : head broad : akenes 

 oblong-turbinate, thickish, obviously contracted under the summit, nearly 3 lines long; 

 outermost usually white-villous : paleas of the pappus ovate to orbicular (2 lines high and 

 often as wide), firm-scarious, commonly imbricated or convolutely overlapping, abruptly 

 acute or retuse at the apex, a half or a third the length of the awn, sometimes glabrous, 

 sometimes densely villous outside. — M. Douglasii & M. cyclocarpha, with var. eriocarpha, 

 Gray, Proc. Am. Acad. ix. 210. Calais Douglasii, DC. Prodr. vii. 85; Hook. & Am. Bot. 

 Beech. 361. C. cyclocarpha, Gray, Pacif. R. Rep. iv. 115, t. 18. C. eriocarpha, Gray, Proc. 

 Am. Acad. vi. 552. — W. California, from Humboldt Co. to San Francisco Bay, and south- 

 ward ; perhaps first coll. by Douglas. 



M. platycarpha, Gray, 1. c. A span to a foot high, slender : head half-inch or less high : 

 proper bracts of involucre rather few and broad (oblong) : akenes turbinate, tapering grad- 

 ually from the broad summit to base; outermost densely short-villous : paleas of the pappus 

 ovate, 2 lines long, somewhat longer than the akene, abruptly acuminate into a short awn or 

 cusp. — Calais platycarpha, Gray, Pacif. R. Rep. 1. c. — Hills around San Diego and San 

 Luis Rey, Parry, Cleveland, Pringle, &c. (Lower Calif., Parry, &c.) 



§ 4. Nothocalais. Pappus of 20 to 24 narrowly linear-lanceolate silvery- 

 white paleas, occupying two or more series, with obscure mid-nerve, very grad- 

 ually attenuate into a slender awn : akenes attenuate-fusiform : seed not reaching 

 to the tapering summit : bracts of the oblong-campanulate involucre narrowly lan- 

 ceolate, nearly equal, in about two series : perennial from a thick caudex. Inter- 

 mediate between Microseris and Troximon ! — Gray, Proc. Am. Acad. six. 65. 



M. troximoides, Gray. Acaulescent or nearly so : leaves tufted on the caudex, rather 

 fleshy, narrowly linear-lanceolate, entire or undulate, 4 to 6 inches long : scapes a span to a 

 foot high: involucre three-fourths inch high: ligules somewhat elongated: mature akenes 

 half-inch long : pappus somewhat longer, its almost setiform paleaj a quarter of a line wide 

 below. — Proc. Am. Acad. ix. 211. — Wooded hills and open plains, Montana and Idaho 

 (first coll. by Spalding), Washington Terr, and Oregon to N. W. California. 



220. LE6NT.ODON, L. partly, Juss. Hawkbit. (Aeow, lion, ooWs, 

 tooth, from the toothed leaves.) — Low perennials of the Old World, one natural- 

 ized in N. E. America, belonging to section Oporinia, Koch, having simple pap- 

 pus of a single series of plumose bristles, and the unopened heads not drooping. 



L. adtumxAlis, L. (Fall Dandelion.) Short rootstock or caudex prsemorse : leaves 

 lanceolate, more or less pinnatifid, somewhat pubescent with simple hairs: scapes 5 to 15 

 inches high, sometimes simple, commonly once to thrice forked : peduncles clavate-thickened 

 under the pubescent much calyculate involucre : akenes all alike. — Apargia autumnalis, 

 Hoffm. Fl. Germ. iv. 113 ; Schk. Handb. t. 220 ; Pursh, Fl. ii. 497. Oporinia autumnalis, Don 

 in Edinb. Phil. Jour. vi. 309 ; DC. Prodr. vii. 108. — In grassy grounds, Newfoundland to 

 E. New England and sparingly to Penn. ; fl. June to Nov. (Nat. from Eu.) 

 L. iiispiDus, L., with double pappus, the outer of short naked bristles, and L. rifRTUS, L., 



with both kinds of bristles plumose, and a paleaceous crown to outermost akenes, are sparing 



ballast-weeds at the ports of New York and Philadelphia. 



220 a . PICRIS, L. (Greek name for some bitter herb of this suborder, 

 from m/coo'";, bitter.) — Leafy-stemmed and coarse herbs, chiefly biennials or annu- 

 als, and of the Old World, with aspect of the larger kinds of Hieracium, rough- 

 bristly, yellow-flowered. — Benth. & Hook. Gen. ii. 511. Picris & Helmintha, 

 Juss. Gen. 170. 



P„ hieracioIdes, L. Rather tall, hispid, and some of the bristles minutely glochidiate, 

 corymbosely branched : leaves lanceolate or broader, with partly clasping base, irregularly 



