420 COMPOSITiE. • 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 

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

 outermost usually wliite-villous : palere of tlie pappus ovate to orbicular (2 lines high and 

 often as wide), firm-scar ious, commonly inibricated 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. Donfjlasii & M. ci/docarpha, with var. eriocarpha, 

 Gray, Proc. Am. Acad. ix. 210. Calais Douglusti, DC. Prodr. vii. 8.5; Hook. & Arn. Bot. 

 Beech. 361. C. cjclocarpha, 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 DolkjIus. 



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

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

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

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

 cusp. — Calais plati/carpha, Gray, Pacif. R. Rep. 1. c. — Hills around San Diego aud San 

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



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

 white paleae, 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 I — Gray, Proc. Am. Acad. xix. 65. 



M. troximoides, Gray. Acaulesceut 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 louger, its almost setiforni paleaj a quarter of a line wide 

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

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



820. LEONTODON, L. partly, Juss. Hawkbit. (Aeoji', lion, 6Soi;'s, 

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

 ized iu 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. AUTUMNALis, L. (Fall Dandelion.) Short rootstock or caudex pramorse : leaves 

 lanceolate, more or less pinnatifid, somewliat 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. — Apurgiu autumnalis, 

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

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

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

 L. HispiDus, L., witli double pappus, the outer of short naked bristles, and L. nfRTUS, L., 



with both kinds of bristles ])lumose, and a paleaceous crown to outermost akenes, are sparing 



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



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

 from TriKp6>, 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. HiERACiofDES, L. Ratlipr tall, liispid, and some of tlie bristles minutely glochidiate, 

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



