VEGETATION OF MOUNT DIABLO. 175 
89. ERIOPHYLLUM casPITosuM, Dougl.; Bot, Reg. t. 1167. 
90. MoNOLOPIA GRACILENS, Gray, Proc. Am. Acad. xix. 20. 
Plentiful at the southward not far below the summit; other- 
wise known only from the Santa Cruz Mountains. 
91. Riciopappus LEPTOCLADUS, Gray, l. ¢. vi. 548. 
92. Acur~tEa MILLeFo.ium, Linn. Sp. 899. 
93. ARNICA DIscompEA, Benth, Pl. Hartw. 319. Borders 
of thickets at the summit, on the north side, as on Mt. 
Hamilton. 
94. SxnEcIo anontcorpEs, DC. Prodr. vi. 426. With the 
preceding. 
95. Carpuus CaLirornicus (Gray), Greene, Proc, Philad. 
(1893), 359. C. venustus (found at the summit of Mt. 
Hamilton) is common enough on the lower flanks of Mt. 
Diablo, but only C. Californicus at the summit. 
96. CENTAUREA MELITENSIS8, Linn. Sp. 917. 
97. URopappus LINEARIFOLIUs (DC.), Nutt. Trans. Am. 
Phil. Soc. vii. 425. Same as n. 127 of the Mt. Hamilton list. 
98. AcosERIs RETRORSA (Benth.), Greene, Pitt. ii. 178. 
99. Agoseris intermedia. Perennial; leaves canescently 
somewhat tomentose, erect, 6 or 8 inches long, deeply pin- 
natifid into falcate narrow segments, the terminal segment 
long and entire, narrowly lanceolate or almost linear: scapes 
Stout, striate, nearly glabrous, 1 to 14 feet high: outer 
involucral bracts of the very large head ovate, abruptly 
acuminate, inner linear-lanceolate: ligules large, pale yellow, 
the expanded head nearly 2 inches broad: achenes about 2 
lines long, glabrous, acute at each end, wing-angled; capillary 
stipe of the bright-white pappus nearly an inch long. 
Middle and higher slopes of the mountain. Species inter- 
mediate between A. grandiflora and lacinata; not rare in 
Californian mountains of the inner Coast Range. 
100. Pritorta virgata (Benth.), Greene, Pitt. ii. 130. 
