PLATYSTEMON AND ITS ALLIES. 149 
this San Francisco Hesp surpasses all the other species 
in the size of its corollas, though not the es of them as 
to general stature. 
4. H. srricrum. Taller than the last, 4 to 1 foot high, 
the scapiform peduncles longer in proportion and strictly 
erect; leaves also erect, narrowly linear, notably callous- 
tipped: buds round-obovate, strongly nodding: corollas an 
inch broad, cream-color or even yellowish, the obovate petals 
not very dissimilar: filaments oblong-linear, pointed at the 
insertion of the anther, long in proportion to the anther; 
capsule # inch long, mostly of exactly oblong outline: stig- 
mas ovate. 
Southern homologue of H. platystemon, differing from it 
chie‘ly in so far as herbarium material makes plain, in its 
more strict habit, round-obovate buds, and longer stamens 
with narrower filaments. Itis known mostly from San Luis 
Obispo and adjacent counties, the oldest good specimens seen 
having been obtained by Parry, on the Mexican Boundary 
Survey, at the town of San Luis ‘Obispo, in 1850. Others 
as good, and from the same county, are in Herb. Calif. 
Acad. by Miss Miles in 1886, and Miss Eastwood in 1896, 
Since this very region must have been traversed by Douglas 
on his way between Monterey and Santa Barbara, and since 
at least one cf his specimens was seen by Asa Gray to have 
linear-oblong filaments, it appears as if this might have 
formed a part of the original Bata lineare, though not 
observed by Bentham. 
5. H. aneustum. Very slender, 4 to 8 inches high; 
leaves from narrow-linear to linear-filiform, ending in a 
blunt callosity, scarcely pubescent: scapes weak, often half 
reclining in age, notably. hirsute: corollas eream-color, } to 
7 inch broad, the petals abruptly cuneate at base: filaments 
