1907] Hall Compositor of Southern California. 223 



copiously) with long arachnoid hairs, at least the stems glabrate 

 in age : leaves elliptic-lanceolate, acute, the upper partly clasping 

 by a narrowish base, the lower with the tapering bases connate 

 in pairs, sparingly denticulate or entire, the largest 12 cm. long 

 and 2 cm. broad : heads peduncled, 2 or 3 in a terminal cluster or 

 solitary : involucre 8 or 9 mm. high ; its oblong bracts comose at 

 the obtuse or merely acutish apex : rays about 1.5 cm. long : disk- 

 flowers conspicuously exceeding the involucre : achenes sparsely 

 short-setulose. 



Meadows of the Upper Transition and Canadian zones, at 2000 

 to 2750 m. alt., San Bernardino Mts. : Bear Valley, Parish, no. 

 3719; Bluff Lake, Jul., 1889, Hall, also Grinnell, no. 82; Dry 

 Lake, on north side San Gorgonio Mt. (Grayback), Mrs. Wilder. 

 no. 599. 



92. PEUCEPHYLLUM Gray. 



Desert shrub with crowded terete resinous-punctate leaves. 

 Heads discoid. Involucre campanulate, foliaceous. Receptacle 

 naked, flat. Flowers yellowish: corolla with very short proper 

 tube and long cylindric throat; teeth short, ovate, obtuse, erect, 

 puberulent. Style-branches linear, semi-terete; the tip broad, 

 obtuse and destitute of appendage. Anthers with oval obtuse 

 tips. Achenes turbinate-oblong, very hirsute. Pappus shorter 

 than the corolla, of numerous unequal rather sordid and roughish 

 bristles, the longer of these sometimes toothed or with hyaline 

 toothed margins or not infrequently flattened and passing into 

 linear hyaline paleae! 



The affinities of this peculiar genus are not known. It was 

 once placed in the Eupatorieae, but its yellow corollas and flat 

 style-branches seem to indicate a different relationship. Mr. M. 

 E. Jones 58 would place it near Dysodia and it may belong some- 

 where in the Helenieae, but scarcely in Tagetineae, the nature of 

 the oil-glands, the involucre, and the habit being very different. 

 Mr. Jones was the first to point out the sometimes paleaceous 

 nature of the pappus and this character is certainly suggestive of 

 a Helenioid origin, but certain species of Ligularia (Senecillus). 

 which is always accepted as Senecioid, has short flattened almost 



58 Jones, Contr. W. Bot. viii. 42 (1898). 



