Vol. 49. No. 12 
BULLETIN 
OF THE 
TORREY BOTANICAL CLUB 
DECEMBER, 1922 
Miscellaneous notes on plants of Southern California—II* 
Puitiep A. Munz AnD Ivan M. JOHNSTON 
LEMNA TRISULCA L. 
Lemna trisulca L. Sp. Pl. 970. 1753. 
This plant, reported by Abrams (Fl. Los Angeles 78. 1904) 
from Bear Valley in the San Bernardino Mountairis and by 
Torrey (Pacific R. R. Rep. 4: 142. 1856) from San Gabriel 
Creek, has been collected by Miss G. Corwin at the mouth of 
Santa Ana Canyon near Mentone, where it was found in a 
ditch at about 2000 feet altitude. It is, therefore, apparently 
to be looked for at various points along the Santa Ana River 
MICROSTYLIS MONOPHYLLOs (L.) Lindl. 
Ophrys monophyllos L. Sp. Pl. 947. 1753. 
Microstylis monophyllos Lindl. Gen. Sp. Orch. 19. 1830. 
A few typical specimens of this species, F. W. Petrson 2271, 
were collected in marshy ground at 8000 feet elevation on the 
South Fork of the Santa Ana River in the San Bernardino 
Mountains, where they grew with such plants as Gentiana 
simplex, G. humilis, Parnassia cirrata, and Luzula comosa. This 
is the first collection west of the Rocky Mountains. 
“ Phoradendron californicum var. distans forma leucocarpum 
Trelease - forma nova 
Like the variety distans, but having white berries. 
[The BuLLetin for November (49: 313-348) was issued November 9, 
1922. 
e first paper of this series was published in the BuLLETIN for Feb- 
ruary, 1922 (49: 31-44) 
349 
