36 Munz AND JOHNSTON: PLANTS OF CALIFORNIA 
locality not given. It was found abundant at the eastern base of 
the Providence Mountains on rocky slopes just below the pinyon 
belt, M. & H 3555 and M, J. & H 4207. 
Myosurus CUPULATUS Wats. 
Myosurus cupulatus Wats. Proc. Amer. Acad. 17: 362. 1882. 
Canyon side in the Upper Sonoran Zone at 4,000 feet, Provi- 
dence Mountains, M, J & H 4152, May 22, 1920; at this time 
the plants were quite dead, having matured their seeds. Pre- 
viously known only from a few collections in Arizona. 
JEPSONIA PaRRyI (Torr.) Small 
Saxtfraga Parryi Torr. Bot. Mex. Bound. Surv. 69. pl. 25. 1859. 
Jepsonia Parryi Small, Bull. Torrey Club 23:18. 1896. 
In January, 1921, Mr. Gordon Nicholson detected a very 
populous colony in a small side canyon running up into the Santa 
Ana Mountains from the Santa Ana Canyon, and very near the 
Orange-Riverside County line. The plants grew at about 1,000 
ft. altitude in clay soil, on a rather open grassy slope facing west. 
We have only specimens in leaf, but these check closely with plate 
25 in the Mexican Boundary Survey Report. The type came 
from San Diego County where it has been collected several times 
since, but outside of that county it has been known from but two 
collections, both in Riverside County. Dr. Hall found it at 
Double Butte near Winchester, and Mr. Parish has reported it 
from Palm Springs (Muhlenbergia 3: 123. 1907). 
LINUM SPERGULINUM Gray 
Linum spergulinum Gray, Proc. Am. Acad. 7: 333. 1868. 
This plant, previously known from Middle California, has been 
collected in Pine Hills, San Diego County, Mrs. Mary Spencer 
15906, at 4,200 ft., on June 25, 1920. The appendage on the petal . 
is as described by Gray. 
HoLacanTHA Emoryi Gray 
Holacantha Emoryi Gray, Pl. Nov. Thurb. 310. 1855. 
Two collections were made: one, M, J & H 4295, was eight 
miles west of Ludlow in a sandy wash along which it occurred for 
several miles; the other, M, J & H 4300, was five miles east of 
Amboy on flat stony desert. Both these specimens are more 
