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 Bigeloiv. 

 — 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 lonfi; 

 outermost usually white-villous : paleiE 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 & j\l. ci/clocarpha, witli var. eriocarphaj 

 Gray, Proc. Am. Acad. ix. 210. Calais Douglasii, DC. Prodr. vii. 8^; Hook. & Arn. Bot. 

 Beech. 361. C. cijdocarpha. 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 turliinate, 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 plati/carpka, Gray, Pacif. R. Rep. 1. c. — Hills around San Diego and San 

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



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

 white palejE, 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. xix. 65. 



M. troximoides, Gray. Acanlescent 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-fourtlis inch high : ligules somewhat elongated : mature akenes 

 halt-inch long : pappus somewhat longer, its almost setiforra palea; a quarter of a line wide 

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

 (first coll. by Spalding), Washiugtou Terr, and Oregon to X. W. California. 



=- 220. LEONTODON, L. partly, Juss. Hawkbit. (Aew, lion, oSow, 

 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. AUTUira.iLis, L. (Pall Dandelios.) Short rootstock or caudex prtemorse : leaves 

 lanceolate, more or less pinnatifiJ, 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 autiimnalis, 

 Hoffm. PI. Germ. iv. 113 ; S.'hk. Handh. t. 220 ; Pursh, PI. ii. 497. Oporiniu aulumnalis, Don 

 in Ediub. 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. HfspiDos, L., with double pappus, the outer of short naked bristles, and^. ufRTUs, L., 

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

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



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

 from TTtKpo'?, bitter.) — Leafy-stemmed and coarse herbs, chiefly biennials or annu- 

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

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

 Juss. Gen. 170. 



_P. HiERACiofDES, L. Rather tall, hispid, and some of the bristles minutelv glochidiate, 

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



