416 COMPOSITE. Tragopogon. 



3 inches high : flowers violet-purple, mostly surpassed by the involucre : outermost akenes 

 squamellate-muricate. — Sparingly in fields and near dwellings, as an escape from cultiva- 

 tion in the Atlantic States, a naturalized weed in California and Oregon. (Nat. from Eu.) 

 T. PRATENSis, L. (Goat's-be.ved.) A foot or two, or tlie larger form a yard high : leaves 

 with broader base : peduncles little enlarged except close under the head : flowers yellow, 

 equalling the involucre, sometimes longer. — Sparingly found in fields, &c., Kevv England to 

 New Jersey and Wisconsin. (Nat. from Eu.) 



217. ANIS6COMA, Torr. & Gray, ("Avto-os, unequal, ko'/xt?, tuft of hair; 

 from tlie pappus.) — Jour. Bost. Soc. Nat. Hist. v. Ill, t. 13 ; Eaton, Bot. King 

 Exp. 197 ; Gray, Bot. Calif, i. 430. — Single species. 



A. acaiile, Torr. & Gray, 1. c. Low winter annual, glabrous, except a dense white tomen- 

 tum on the edges of the pinnately lobed and often runcinate leaves : these all in a rosulate 

 radical cluster (inch or two long) : scapes numerous, naked, a span high : head about inch 

 high : ligules conspicuous, light yellow. — Pierostephanus runcinatus, Kellogg, Proc. Calif. 

 Acad. iii. 20, f. 4, badly characterized. — Dry plains and hills, of the eastern part of the 

 Sierra Nevada, from Sierra Co. to the Mohave, California, and adjacent Nevada ; first coll. 

 by Fremont. 



218. HYPOCHCfeRIS, L. (A name of Theophrastus for some plant of 

 this tribe.) — Old World and S. American herbs ; with yellow flowers ; one species 

 sparingly introduced. 



H. GLABRA, L. Nearly glabrous; a rosulate tuft of oblong-spatulate sinuate-dentate leaves 

 from an annual root, sending up branching scapes a span to a foot high, bearing a few 

 middle-sized heads : involucral bracts lanceolate : outermost akenes truncate, inner slender- 

 beaked: bristles of the somewliat sordid pappus arachnoid-plumose, but naked at tip, 

 also some fine and shorter naked ones in an outer series. — Fields, E. California. (Nat. 

 from Eu.) 



H. radicAta, L., which is hirsute and has all the akenes rostrate, is an occasional ballast- 

 weed, at Philadelphia and New York. 



219. MICROSERIS, Don. (Mi/cpos, little, (ripi^, Endive or Lettuce; not 

 an apposite name for our larger species.) — W. and S. American (but almost all 

 Californian) annuals, biennials, or some perennials, glabrous or merely furfura- 

 ceous-puberulent, acaulescent or subcaulescent ; with heads of yellow flowers 

 terminating naked scapes or elongated simple jjedunoles, commonly nodding before 

 expansion. Foliage very variable. — Don in Phil. Mag. xi. 388 (1832); Gray, 

 Proc. Am. Acad. ix. 207, & Bot. Calif, i. 423. Bellardia, Colla in Mem. Acad. 

 Taurin. xxxviii. 40, t. 34. Lepidonema, Fisch. & Meyer, Ind. Sem. Petrop. 1835. 

 Fichtea, Schultz Bip. in Linn. x. 255. Calais, DC. Prodr. vii. 85 ; Gray, 

 Pacif. R. Rep. iv. 121. Phyllopapptts, F. Muell. in Linn. xiv. 507. Uropappus 

 & Scorzonella, Nutt. Trans. Am. Phil. Soc. vii. 426. 3Ecroserls &, Scorzonella, 

 Benth. & Hook. Gen. ii. 506, 533. 



§ 1. Ptilophora, Gray, 1. c. Pappus of 15 to 20 white and soft j)lumose 

 bristles with paleaceous base : akenes linear-columnar, of same diameter from 

 base to summit : stems more or less branching and leaf-bearing : perennials, with 

 fusiform biennial roots. 



M. nutans, Gray. Slender, a foot or so high : fusiform roots either fascicled or solitary : 

 leaves from entire and spatulate-obovate to pinnately parted into narrow linear lobes : heads 

 8-20-flowered, slender-peduncled : involucre cylindracoous, of 8 to 10 linear-lanceolate grad- 

 ually acuminate principal bracts and a few short loose calyculate ones : bristles of pappus 

 several times longer than the oblong scale at the base. — Proc. Am. Acad. i.x. 208. Scoi-zo- 



