'50 CALIFORNIA ACADEMY OF SCIENCES. 



with a generally mucli longer, straight, scabrous or barbel- 

 late bristle or awn. Glabrous perennials with fusiform 

 roots, stems mostly leafy at base with laciniate foliage, and 

 long-pecluncled heads which are nodding in the bud. In- 

 habiting wet grassy grounds, chieliy in the mountain dis- 

 tricts from middle California to British Columbia, with one 

 species in the high mountains of Australia and New Zealand. 

 Flowering in summer. — Trans. Am. Phil. Soc. vii. 426; 

 Torr. & Gray FL ii. 470; Benth. & Hook. Gen. PI. ii. 533. 

 Calais g § Scorzonella & Anacalais, Gray, Pac. R. Rep. iv. 

 113. Microseris § Scorzonella, Gray, Proc. Am. Acad. ix. 208 

 and XX. 300, Bot. Cal. i. 424, and 8yn. Fl, ii. 417 (excl. M. 

 Parryi. 



"^Caulescent. — North American species. 



S. MEGACEPHALA. — Glaucous, Robust, 2 — 3 feet high : 

 leaves oblong, acuminate, entire above the middle, laciniate- 

 toothed toward the clasping base, 6 — 8 inches long : pedun- 

 cles stout, a foot long: heads hemispherical more than an 

 inch high, 2 inches broad, 200 — 225-flowered: bracts of the 

 involucre 40 or more, imbricated in 4 — 5 series, exterior 

 round-ovate, innermost ovate-lanceolate, all (the outer very 

 abruptly) long-acuminate: akenes 2 lines long, somewhat 

 turbinate: pappus brownish and firm, of 5 ovate-lanceolate 

 palese a line long, tapering to an awn of 3 — 4 lines. 



Eel River, Mendocino County, 1866, H. N. Bolander, 

 being a part of his number 4737. A single specimen only, 

 differing from the next species, not in habit or general ap- 

 pearance, but remarkably distinct from it in the characters 

 of the involucre, akene and pappus. 



S. PBOCERA. — Leaves more laciniate: not acuminate : heads 

 narrower, 100 — 150-flowered: bracts of involucre 25 or 

 more, in 2 — 3 series, the exterior ovate, innermost ovate- 

 lanceolate, all acuminate : akenes nearly columnar, 3 lines 

 long: pappus brownish, the paleae 10 (as in all the follow- 

 ing) lanceolate, passing into a thrice longer, barbellate 



