Microseris. COMPCSITJE. 419 



akene attenuate abore almost into a beak: papptta silverv white; lery delicate awn barely 

 half the lengtli of the more deeply noti;lied palea. — Calais luiearifAia, IjC. 1. c, excl. ,-'. n. 

 L'riijxi),finsi l.in)-Mrifolius & C. rjrandifiorus, Xutt. TraLs. Am. PhiL >oe. vii. 425. — Open low 

 grounds, throughout California, to Nevada, Arizona, and Xew Mexico. 

 M. Lindleyi, Gray, 1. c. Peduncle little or not at all thickened upward: akene gradually 

 and .-lightly attenuate toward the summit : pappu.s sordid ; jjalese bearing a 6troij;.'f:r and 

 more exserted awn from a shallow not<:h, -oiuetimes those of marginal flowers villou- out- 

 side, and their akenes pube-cent. — CaluU Lu,tllt._,i!^ L)C, 1. c, excl. svn. Uropappus L.nd- 

 lei/i & L. fteteror-arpus, Xutt. L c. — California, from ^au Franci.-co Bay to ^.lu D'v-j^); 

 apparently le.-^ common than the preceding. 



* * Pale* of the sordid or merely whitish pappus entire, surmonnted by the awn. cr.r.-pic u'.j; 

 except in the second -pecie.s: scapes slender, a span to 18 inches high; akenes mo-tly upwardly 

 scabruus on the 10 equal ribs, occasi^.-nally the outermost villoiis. — C'fUni § Eucaiau, 1*C., &c. 



-)— Akenes atteriuate-fu=ifonn, the upper and slightly narrowed half n'lt occupied by the seed! 

 "IVT - attemiata, Geeexe. Leave- mostly pinnately parted into narrow linear lobe- : scapes 

 a spjan or two high: involucre half-inch high, barely calyculate at base: pappus of the 

 lenjrtli of the akenes (nearly 4 lines) ; the paleiE oljlong-lanceolate, about half the length of 

 the awn, externally either li^rhtly or conspicnoiLsly villotLs. — Proc. Am. Acad, xi.K. G.5 — 

 California, at Berkeley and hill-5 north of Monte Diablo, Gritne. 



H— ■)— Akenes from slendtr--ul)clavate to turbinate, the cell filled by the seed. 



-i-s Paleae of the pappus ven,- small (not over half-line long) or obsolete, glabrou-, and the .slender 

 bristles fra^.dle or deciduous. 

 M. aphantocdrpha, Geat, 1. c. Involucre merely calyculate : akenes (Ij to 2 lines long) 

 oMon g-':lavate, with usually some constriction or rounding of the summit, shorti;r than 

 the rigid capillary awns of the pappus; these merely deltoid-dilated at base, or hardly .^o. — 

 Calais o/J-ui.tocarpjfia, Gray, Proc. Am. Acad. vi. :jj2. — California, in Alameda and Contra 

 C''-r;i Co. ; first coll. by Bff:>}:':r. 

 — ■" Var. tenella, Oe.it, 1. c. Depauperate in the original specimens : bri>tles of jiappus 

 2 to .5, .sometimes with manife.st broadly-ovate palea at base, sometimes deciduous. — , " "■; 

 [Aplinnoraloii) tenella. Gray, Pacif K. Eep. iv. lu, t. 17. — .Same range, and along the 

 Napa and Lo» er Sacramento ; first coll. by Bigdov: &. Fitch. 



.j-r ++ Palece 'if the X'appos conspicuous, persistent. 



= Akene (with truncate summit) little over a line long and the long-awned paleae of the pappus 



of not more than halt its length, both glabrous : head small. 

 M. elegans, Geeexe, in herb. A span to a foot high, slender: head in fruit less than half- 

 inch high : akenes tapering gradually from very summit to base ; palea; of the pappus ovate- 

 deltoid or sornetinjes rather narrower, cither ob.scurely emarginate or more attenuate into 

 a slender awn of about 4 times the length : sometimes a miuute villosity covering the trun- 

 cate summit of the akene. — California, common in Contra Costa Co., Hall, L^-mmm, Parry, 

 (jrv'jif, &c. Between .U. aphontocaTplui and il. Bigelovii. 

 Akenes 2 or 3 lines long, some of the outermost not rarely villous: paleae of the pappus 



seldom shorter, in the same species and even in the same head disposed to be either gkbrous or 



Ecabro-puberulent, or externally villous. 

 M. acuminata, Geeexe. A span or two high : head in fruit about inch high : akenes 

 "apparently all glabrous, slenderly somewhat fnsiform-tnrbinate (obscurely contracted between 

 middle and summit), almost .'i lines long, not half the-length of the pappus: pale* narrowly 

 lanceohite, graduallv attenuate into a rather ,horter awn. — Bull. Torr. Club, x. 88. Calais 

 lj„„rfl„iii, Gray, Pacif. R. Rep. iv. 11-3, not DC — California, on Mark ^\'e«t's Creek, Bigelma 

 (ha-s passed for the following species; pappus nearly glabrous). Poot-hills of the .Sierra 

 Ifevada, .l//s. Curran, with palea; minutely silky-villous externally. 

 — M. Bigelovii, Gray. A span to a foot or more high : head half-inch or more high : involucre 

 inclined to be'somewhat imbricated : akenes oblong-turbinate, not contracted under the trun- 

 cate summit, only 2 lines long ; outermost sometimes villous : palea; of the pappus obloug- 

 to ovate-lanceolate, mostlv if not always glabrous, or scaberulous, varying considerably in 

 size onlv half or a third the length of the awn. — Proc. Am. Acad. ix. 209. Cohis Bige- 



'M. //zmrc^^,^^'^' 



