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be expected along our northern borders in the Mohave Desert. 
Lower Sonoran. 
RANUNCULACEAE. Buttercup Famity. 
1. CLEMATIS. Cuemaris. 
Ovaries and achenes pubescent. 
Leaflets §; sepals thin, 7-10 mm. Jong. 1. Cit 
flets 3; sepals thick, 12-18 mm. long. 2. C. lasi 
Ovaries and achenes glabrous. 3. °C. a 
at ies californica, 
I. CLEMATIS LIGUSTICIFOLIA CALIFORNICA S. Wats. Bot. Calif. 
Type locality: “San Diego to the Sacramento and to Arizona.” 
Distribution: Central California southward to the southern 
boundary of the State. In southern California it is found along 
streams in the valleys and foothills. Upper and Lower Sonoran. 
Specimens examined: Santa Barbara, Bingham; Abrams 4157; 
San Gabriel Mountains, McClatchie, Aug. 1895; Monrovia Can- 
yon, Dudley, Nov. 20, 1907; San Antonio Canyon, Baker 3438; 
Los Angeles, Abrams 4168; Lytle Creek Canyon, Abrams 1916; 
San Bernardino, Parish; Jamul Valley, Susan G. Stokes, June 
19, 1895; Cajon Pass, Abrams &§ McGregor §37. 
2. CLrematis LasIaNTHA Nutt. in Torr. & Gray, Fl. N. Am. 1: 
g. 1838. 
Type locality: ‘Near the sea-coast of St. Diego.” 
Distribution: Central California south to the southern boundary 
of the State. In southern California this is the most common 
clematis. It is frequent in the chaparral on the coast slope of 
all the mountains and foothills. Upper Sonoran and extending 
into the upper parts of the Lower Sonoran of the coastal slope. 
Specimens examined: Santa Barbara, Nuttall; Elmer 3844; Mon- 
tecito, Franceschi, 1894; Sulphur Mountain, Red Reef Canyon, 
Topatopa Mountains, Abrams {9 McGregor 128; Santa Monica 
Mountains, Abrams 1306; Mount Wilson trail, Abrams 2610; Canon 
Diablo, Parish 4709; Mill Creek, Parish, June, 1898. 
3. Clematis PauciIFLoRA Nutt. in Torr. & Gray, Fl. N. Am. 
1: 9. 1838 & 1: 657. 1840. 
Type locality: “Near the sea-coast of St. Diego.” 
