496 



COMPOSITE. 



lanceolate, commonly glabrous, varying in size, only £ to £ as long 

 as the awn. — (M. intermedia Greene.) 



Oakland, San Francisco and northward along the coast in sandy 

 soil. 



6. M. acuminata Greene. Scapes few, decumbent at base, 9 to 

 12 in. high; leaves deeply pinnatifid into slender lobes; heads nar- 

 rowly oblong, in maturity turbinate, about 1 in. high; achenes 

 glabrous, slenderly fusiform and widest above the middle, 3 lines 

 long; pappus 7 or 8 lines long; palea? narrowly lanceolate, gradually 

 attenuate into an awn which is shorter than the palea. 



Valleys and hills of the North Coast Ranges: Santa Rosa; Calis- 

 toga; Conn Valley; Gordon Valley (Solano Co.). Also Sierra Foot- 

 hills. Well marked species. 



10. SCORZONELLA Nutt. 

 Perennial herbs, with the leaves mainly in a radical tuft, the stems 

 naked above, 1-headed, and more or less scape-like. Root fusiform. 

 Leaves pinnatifid with linear and mostly salient lobes, or entire. 

 Heads large, ovoid-cylindric, nodding in the bud, showy as compared 

 with the two preceding genera, the flowers yellow and ligules 

 elongated. Bracts of the involucre mostly thin-herbaceous, imbri- 

 cated in several series. Achenes cylindric or slightly tapering down- 

 ward, ribbed and obscurely angled. Palea? 10 or more, firm, tipped 

 with a rather long sub plumose or barbellate awn. (So named 

 because of its general aspect to Scorzonera.) 



Pappus-bristles subpluraose, the paleee about 3 lines long; leaves laciniate- 



pinnatifid 1. S. sylvatica. 



Pappus-bristles barbellate or naked. 

 Leaves subentire to laciniate-parted; palese about 1 line long 



2. S. paludosa. 



Leaves linear-lanceolate, entire or saliently lobed ; pa lese % line long . . . 



3. S. Bolanderi. 



Leaves entire or toothed, palea? 1 to lines long 4. S. procera. 



1. S. sylvatica Benth. Stein commonly simple and 1-headed, L] 

 to 2 ft. high; leaves broadly to narrowly lanceolate, laciniate- 

 pinnatifid, the radical 5 to 8 in. long; heads 1 in. high or somewhat 

 less; involucral bracts in 3 series, the outer ovate or ovate-lanceolate, 

 the inner linear-oblong, all acuminate; achene 4 lines long; pappus 

 7 lines long; palea? about 3 lines long, tapering into the subplumose 

 awn which is somewhat longer. — (Microseris sylvatica Benth.) 



Wooded hills bordering the Sacramento and San Joaquin valleys 

 from Yuba and Colusa Cos. southward to the eastern base of the Mt. 

 Diablo range. Last of Apr.-May. 



2. S. paludosa Greene. Stems several from the base, slender, 2 

 ft. high or more; leaves 1 ft. long, subentire to laciniate-parted into 

 long linear lobes; head 50 to 75-flowered; involucral bracts with a 

 lanceolate base, tapering into a long Blender acumi nation; achene 2 

 lines long; pappus brownish, the palea' little more than 1, the bar- 

 bellulate awn 4 or 5 lines long. — (Microseri> sylvatica Benth. var. 

 Stillmani Gray.) 



