Mkrostrls. COMPOSIT.E. 417 



nella nutans (Geyer), Hook. Lond. Jonr. Bot. vi. 253. Pt'ilophora nutans, Gray, PI. FendL 113. 

 Calais {['Ul'iiihora) nutans, Gray, Pacif. K. Eep. iv. 112. Slephnnomeria intermedia, KeUoj;]ir, 

 Proc. Calif. Af ad. v. .39. — Wet gra<-y grouiid.s, borders of Brit. Columbia and Montana tu 

 S. ^y. Colorado, Utah, and the higlier Sierra Nevada, California: fl. .spring. 

 M. major, Geat, 1. u. St ..uter, often more than 2 feet high, apparently thicker-rooted: 

 heads larger, fauetimes inch high : involucre of more lanceolate bracts imbricated in three 

 length? . pappu- rather less pluti]o.?e : leave.^ oblong-lanceolate, entire or sparingly laciniate. 

 — Ptilo/ihora major, Gray, PI. Fendl. 11.3. Calais major. Gray, Pacif. E. Kep. 1. c. 114. — 

 Idaho, Utah, &c. ; first coll. by .Sy/(/'c//nj. 



Var. laciniata, Geav, 1. c. Lower: leaves pinnately parted and laciniate. — Calais 

 graciloba, Kellogg, Proc. Calif. Acad. 1. c. — ^y. Idaho, Spaldiiu/. Jlendocino Co., California, 

 Kellogr/. 



§ 2. ScoRzoxELLA, Gray, 1. c. Pappu.5 (.=omeTvliat sordid) of 5 to 10 atten- 

 uate bristles with paleaceous ba.se. or of short palere bearing lon^^ b^i^tle5. the.se 

 either subplumose or naked: akenes truncate at summit, slightly attenuate down- 

 ward only : involucre loosely imbricated in 2 or 3 series, many-flowered : peren- 

 nials or biennials, often branching from base and somewhat leafy-stemmed : root 

 fusiform. — Scor:o/ielJa. Xutt., Benth. & Hook. 1. c. 



* Pappus-bristles barbellate or short-plumose, not more than 4 times the length of the entire lan- 

 ceolate palea: akenes slender. 



M. sylvatica, Gray, 1. c. A foot or so high, not rarely simple and monocephalous : leave, 

 from broadly lanceolate to linear, laciniate-pinnatifid : head almost incli high : involucral 

 bracts mostly abruptly acuminate from an oval or oblong base: awn-like bristles of the 

 pappus (commonly 10) almost or quite plumose. — ><jjrzonella njlmtifo, Benth. PI. Hartw. 

 320. Calais (Anacalais) sijlvatira. Gray, Pacif. R. Rep. iv. 113. — California, in woods of 

 the .^aeramento and its tributaries, Hartu-eg, Bigelaw, KfJI'xjg & Harford. 



Var. Stillmani, Gi;av, 1. c. Sunjetimes several-stemmed from the base and with 

 leaves pinnately parted into long linear lobes : Involucral bracts lanceolate and more gradu- 

 ally slender-acuminate: pappus-bristles (5 to 10) merely barbellate under a lens: akenes 

 smooth, obscurely costate. — California, on the Sacramento, &c., Still /nan, Biyfl'jv:. Near 

 San Francisco, ■iamuels, G. R. Vase//. 



* * Pappus-bristles (10, sometimes 8) n.tked, barely denticulate or scabrous, entire or nearly so, 

 several or many times longer than the small palea: akenes columnar or rather slender: heads 

 large or middle-sized, with elongated lignles : involucre not reflexed at the fall of the akeiie=, its 

 bracts with loose and conspicuously acuminate or attenuate tips: stem sometimes .scapiform, 

 often few-leaved and branching. — Scorzonella, Xutt. (Foliage variable, as in the.genus gener- 

 ally: species too nearly connected.) 



-i— Heads and leaves of the largest. 



M. procera, Geat. Glaucous: stem robust, 2 or 3 feet high, branching: leaves chiefly 

 oblong and apiculate-acuminate, denticulate or entire, rarely laciniate-lobed.; larger cauline 

 6 to 8 inches long and one or two wide ; radical oblong-lanceolate, commonly a foot long: 

 involucre a full inch or more high and broad ; outer bracts broadly ovate with abrupt acu- 

 mination; innermost lanceolate-acuminate: akenes nearly 3 lines long: paleK of the pappns 

 lanceolate or oblong-lanceolate, acute, about one fotirth the length of the awn. — Proc. Am. 

 Acad. xix. 64. J/, laciniata, var. procera. Gray, Proc. 1. c. i.x. 209, & Bot. Calif. L 424. 

 Calais glauca, var. procera. Gray, Proc. Am. Acad. vii. 364. — Hillsides, AV. California, from 

 Sonoma Co. northward to Klamath, Oregon, T'jrrfy, Bolander, Kdlogy, Kronkhite. 



I ; Heads and leaves less ample and stem less robust, a foot or less to two feet high.' 



M laciniata Geat. Rather stout, glaucescent : leaves laciniate-pinnatifid into attenuate 

 lobes, or sometimes entire; radical 4 to 10 inches long: involucre an inch or less high; its 

 bracts as in the preceding, or nearly all with broad dilated base : akenes columnar, 2 lines 

 long : palese of the pappus deltoid or triangular-ovate, not longer than breadth of the akene, 

 abruptly tipped by an awn or bristle 8 or 9 times longer. — Proc. Aiii. Acad. ix. 209, excl. 

 var. procera. Hqmenonema 7 laciniatum, & perhaps also H.? glancum, Hook. Fl. i. 301. 

 Scorzonella laciniata, ^utt. Trans. Am. Phil. Soc. vii. 426. Calais i Scorzonella) laciniata. 



