62 PITTONIA. 
rays few, rose-purple: the striate, achenes sparingly ap- 
pressed-pubescent; pappus firm. | 
Northeastern California, in Modoc Co., M. S. Baker, 1893; | 
but described originally, by Gray, from dwarfed subalpine | 
specimens obtained on Mt. Shasta by Brewer. : 
~~ 
9. M. INORNATA. Aster inornatus, Greene, Eryth. iii. 119 - 
(1895).—Species so far as known quite local on the plains 
of Siskiyou Co., Calif., beyond Mt. Shasta. It is wholly dis- 
tinct from the plant which Gray called A. Shastensis eradi- 
atus, which he also had from me, but from another region. - 
10. M. rNcaNA. Diplopappus incanus, Lindl., Bot. Reg. — 
t. 1693 (1834). Dieteria incana, Torr. & Gray, Fl. ii. 100 : 
(1841). Aster incanus, Gray, Bot. Calif. i. 322 (1876).—This - 
is a plant of California derivation, but not yet positivel; 
identified in the field. What I take to be probably the 
same I cultivated for several seasons in California, the young - 
plantlets having been sent me from Kern County. But this _ 
was a tall and robust, loosely branching winter annual. The — 
leaves are acute, and the bracts of the involucre more elon- - 
gated and slender than represented, and also in no degree : 
glandular. No Macharanthera is found in those parts of 
California supposed to have been Douglas’ only field of ex- : 
ploration. But, if he penetrated the interior somewhat fur- — 
ther to the southwestward than he is supposed to have done, ~ 
he may have obtained the plant known to me. 
11. M. aspera. Biennial, stoutish, freely branching, 2 or — 
3 feet high, rough throughout, with a gland-tipped indu- - 
ment which is short and scabrous on the leaves, longer and — 
 hispidulous on the stem and branches: cauline leaves ob- 
long-lanceolate, sessile by a broad half-elasping base, spinu- — 
losely serrate-toothed: heads large, somewhat racemosely — 
disposed at the ends of the branches; involucres hemispher- 
ical, with long lanceolate spreading herbaceous tips, these - 
