(389 ) 
Specimens examined: Morongo Canyon, Parish 2979; Signal 
Mountain, Abrams 3170, and Dec. 29, 1907; San Felipe, Parry, 
1850. 
FABACEAE. Pea Famtity. 
Leaves palmately foliate. 
Flowers solitary. 1. Xylothermia. 
Flowers racemose. 2. Lupinus. 
Leaves unequally or equally pinnate or rarely entire. 
Flowers umbellate or solitary. 3. Syrmatium. 
Flowers in spikes or racemes, not umbellate. 
Herbage glandular-dotted. 
Flowers racemose; wings and keel wanting. 4. Amorpha. 
Flowers spicate or racemose; petals all present. 5. Parosela. 
Herbage not glandular-dotted. 6. Olneya. 
1. XYLOTHERMIA. Srtincaree-susu. 
Twigs and leaves green and merely puberulent. I. X. montana. 
Twigs and leaves canescent. 1a. X. montana tomentosa. 
I. XYLOTHERMIA MONTANA (Nutt.) Greene, Pittonia 2: 188. 
1891. 
Pickeringia montana Nutt. in Torr. & Gray, Fl. N. Am. 1: 389. 
1840. 
Type locality: “Summits of the mountains in the vicinity of 
St. Barbara, California.” 
Distribution: Islands off the coast of southern California, and 
on the mainland in the chaparral of the Coast Ranges from the 
vicinity of Santa Barbara, northward to Sonoma County, and in 
the Sierra Nevada at least as far north as Mariposa County. 
Upper Sonoran. 
Specimens examined: Santa Cruz Island, Brandegee; La Cumbre 
Peak, Santa Ynez Mountains, Abrams 4320. 
Ia. XYLOTHERMIA MONTANA TOMENTOSA Abrams, Bull. Torrey 
Club 34: 263. 1907. 
Type locality: ‘“Near El Nido, San Diego County.” 
Distribution: In the chaparral from the San Bernardino Moun- 
tains southward to near the National Boundary, and probably 
extending along the western slopes of the mountains of northern 
Lower California. Upper Sonoran. 
