Microseris. COMPOSITE. 417 



nella nutans (Geyer), Hook. Lond. Jour. Bot. vi. 253. Ptilophora nutans, Gray, PI. Fendl. 113. 

 Calais (Ptilophora) nutans, Gray, Pacif. K. Rep. iv. 112. Stephanomeria intermedia, Kello<;g, 

 Proc. Calif. Acad. v. 39. — AVet grassy grounds, borders of Brit. Columbia and Montana to 

 S. W. Colorado, Utah, and the higher Sierra Nevada, California: fl. spring. 

 M. major, Gkay, I.e. Stouter, often more than 2 feet high, apparently thicker-rooted: 

 lieatls larger, sometimes inch high : involucre of more lanceolate bracts imbricated in three 

 lengths : pappus rather less plumose : leaves oblong-lanceolate, entire or sparingly laciniate. 

 — Ptilophora major, Gray, PI. Fendl. 113. Calais major, Gray, Pacif. R. Rep. 1. c. 114. — 

 Idaho, Utali, &c. ; first coll. by Spal(1ln(j. 



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

 gracilohu, Kellogg, Proc. Calif. Acad. 1. c. — W. Idaho, SpalcUnrj. Mendocino Co., California, 

 Kellofjfi. 



§ 2. ScoRzONELLA, Gray, 1. c. Pappus (somewhat sordid) of 5 to 10 atten- 

 uate bristles with paleaceous base, or of short paleaj bearing long bristles, these 

 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. — Scorzonella, Nutt., 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 : leaves 

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

 bracts mostly abrui^tly acuminate from an oval or oblong base : awn-like bri.stles of the 

 pappus (commonly 10) almost or quite plumose. — Scorzonella si/lvatira, Benth. PI. Hartw. 

 320. Calais {Anacalais) si/lratira, Gray, Pacif. R. Rep. iv. 113. — California, in woods of 

 the Sacramento and its tributaries, Hartweg, Bigelow, Kellof/rj & Harford. 



Var. Stillmani, Gray-, 1. c. Sometimes several-stemmed from the base and with 

 leaves pinnately ])arted 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., StiUman, Bigelow. Near 

 San Francisco, Sainuels, G. R. Vaseii. 



* * Pappus-bristles (10, sometimes 8) naked, 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-size<l, with elongated ligules : involucre not reflexed at the fall of {lie akenes, its 

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

 often few-leaved and l)ranching, — Scorzonella, Nutt. (Foliage variable, as in the genus gener- 

 ally : species too nearly connected.) 



■i— Heads and leaves of the largest. 



M. procera, Gray-. 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 ; innermo.st lanceolate-acuminate : akenes nearly 3 lines long : paleae of the pappus 

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

 Acad. xix. 64. M. laciniata, var. procera. Gray, Proc. 1. c. ix. 209, & Bot. Calif, i. 424. 

 Calais (jlauca, var. procera. Gray, Proc. Am. Acad. vii. 364. — Hillsides, W. California, from 

 Sonoma Co. northward to Klamath, Oregon, Torrej, Bolander, Kellogg, Kronkhite. 



•i— -1— Heads and leaves less ample and stem less robust, a foot or less to two feet high. 



M. laciniata, Gray. 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 witli broad dilated base : akenes columnar, 2 lines 

 long : palefE 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. Am. Acad. ix. 209, excl. 

 var. procera. Hi/menonema? laciniatum, & perhaps also H.? glaucum. Hook. Fl. i. 301. 

 Scorzonella laciniata, Nutt. Trans. Am. Phil. Soc. vii. 426. Calais (Scorzonella) laciniata, 



27 



