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 iu California and Oregon. (Nat. from Eu.) 

 T. PRATENSIS, L. (GOAT'S-BEARD.) A foot or two, or the larger form a yard high: leaves 

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

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

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



217. ANISOCOMA, Torr. & Gray. ("Avio-os, unequal, KO/JL-T], tuft of hair; 

 frofn the pappus.) Jour. Bost. Soc. Nat. Hist. v. Ill, t. 13 ; Eaton, Bot. King 

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



A. acaule, TORR. & GRAY, 1. c. Low winter annual, glabrous, except a dense white tomen- 

 tum on the edges of the piunately lobed and often runciuate 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. Pterostephanus runcinattis, 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. HYPOCHCfcRIS, 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 ii few 

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

 beaked : bristles of the somewhat 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 akeues rostrate, is an occasional ballast- 

 weed, at Philadelphia and New York. 



219. MICROSEBIS, Don. (Mpo's, little, o-epw, 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 peduncles, 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. Sern. Petrop. 1835. 

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

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

 & Scorzonella, Nutt. Trans. Am. Phil. Soc. vii. 426. Microseris & Scorzonella, 

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



1. PTILOPHORA, Gray, 1. c. Pappus of 15 to 20 white and soft plumose 

 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 cylindraceous, 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. Prgc. Am. Acad. ix. 208. Scorzo- 



