Stylocline. COMPOSITE. 227 



Benth. & Hook. Gen. ii. 297 (excl. 3, 4) ; Gray, Proc. Am. Acad. viii. 651, & 

 Bot. Calif, i. 335. Our species, of the section BOMBYCIL^ENA (with woolly 

 fructiferous bracts smooth and crestless), approach Stylocline and Filago in the 

 points which distinguish them from the European species. 



M. Californicus, FISCH. & MEYER. Slender, erect, 6 to 12 inches high : leaves mostly 

 linear : fructiferous bracts 5 or 6, at length firm-coriaceous, somewhat half-obcordate or half- 

 obovate in outline, straight anteriorly, and with the soon erect beak-like tip largely scarious. 

 -Ind. Sem. Petrop. 1835, 42; Torr. & Gray, Fl. ii. 264; Gray, Bot. Calif. 1. c. M. (Ehijn- 

 cholcpis) angustifolius, Nutt. Trans. Am. Phil. Soc. n. ser. vii. 339. Plains and open ground 

 from S. California northward, toward the coast, to Oregon. Heads vary in the wool, from 

 long and copious, as in M. bombycinus, to short, as in the subjoined 



Var. SUbvestitus, GRAY, Bot. Calif. 1. c. Small ; the wool of the bracts all short 

 and wholly appressed. Arroyo Grande near Monte Diablo, California, Brewer. 



M. amphibolus, Gray. Resembles the more loose-woolly forms of the preceding: female 

 flowers about 10, somewhat imbricated on an oblong receptacle; their fructiferous bracts 

 membranaceous or merely chartaceous at maturity, the beak an ovate almost wholly hyaline 

 appendage which in flower is almost as long as the body and iuflexed, at maturity porrect : 

 sterile flowers subtended by some linear thin chaff, and with a pappus of a few bristles. 

 Proc. Am. Acad. xvii. 214. California, Walnut Creek near Martinez, Brewer, anl coll. 

 (probably in same district) Kellogg <f- Harford, distrib. 416. 



55. STYL6CLINE, Nutt. (2A.o?, a column, and K/VU-T?, a bed, or 

 receptacle, from the form of this.) Floccose-woolly annuals, a span or less in 

 height, branched from the base, erect or spreading, with entire alternate leaves 

 and more or less glomerate heads. --Nutt. Trans. Am. Phil. Soc. n. ser. vii. 

 338 ; Gray, Proc. Am. Acad. viii. G52, & Bot. Calif, i. 336. Micropus 3 & 4, 

 Benth. & Hook. Gen. ii. 296. Includes, besides the following species, S. (Diplo- 

 cymbiuni) Griffithii of Afghanistan, most related to our second and very distinct 

 section. 



1. EUSTYLOCLINE, Gray, I.e. Fertile flowers numerous; their chaffy 

 bracts pluriserially and closely imbricated in an ovoid head, thin, with at least' 

 the broad tips hyaline (barely a green midrib or centre), ovate in outline, promptly 

 falling from the receptacle after maturity along with the loosely enclosed akene ; 

 those subtending the sterile flowers all scarious-hyaline and deciduous. Pappus 

 of a very few capillary bristles generally present with the sterile flowers. Sty- 

 locline, Nutt. 1. c. 



S. gnaphalioid.es, XUTT. 1. c. Leaves broadly linear or the upper oblong, obtuse : fruc- 

 tiferous bracts broadly ovate, moderately woolly on the back, almost wholly hyaline-scarious, 

 a firmer central portion at base saccate-conduplicate and enclosing the narrowly obovate 

 oblique laterally compressed akeue. Gray in Pacif. R. Rep. iv. 101, t. 13, &c. Open 

 grounds, California from the Stanislaus southward ; first coll. by Nuttull. 



S. micropoid.es, GI;AY. Leaves somewhat narrower and rather acute : heads more woolly, 

 appearing less scarious and imbricated ; fructiferous bracts having a narrower oblong-ovate 

 hyaline tip, the oblong body densely long-woolly, without hyaline expanded margins, but 

 wholly enwrapping the nearly straight and slightly compressed akene. PI. Wright, ii. 84, 

 & Bot. Calif. 1. c. ]\J icrojtiis Grayana, Hemsl. Bot. Centr.-Amer., name only. Arid plains, 

 S. California through S. Nevada and Arizona to New Mexico ; first coll. by Wright. 



2. ANCISTROCARPHUS, Gray. Fertile flowers 5 to 9, loosely disposed on the 

 slender receptacle ; their enclosing bracts cymbii'orm, of firm texture except the 

 narrow hyaline tip, tardily if at all deciduous at maturity ; the few sterile flowers 

 involucrately subtended by about 5 larger open bracts ; these herbaceo-coriaceous, 



