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5. Ranunculus L. Borrercur. 
Sepals 5. Petals 5 or multiple, with a scale 
at the base. Ovaries oo, l-ovulate. Fruit o- 
akenes. 
1. RK. HeBecarpus Hook. & Arn. Akenes 
hispid, roughened; floral parts of small size 
and reduced in their typical number.—o. 
Marin County. Niles. Spring. 
Flaccid annual of the habit of Bowlesia. 
2. KR. mMuricatus L. . Lower leaves rounded, 
3-lobed, irregularly crenate; akenes tubercu- 
late, spinose; floral parts typical and of ordi- 
nary proportions; petals yellow.—©@. Pre- 
sidio. Summer. 
3. BR. maximus Greene. Leaves broad, alter- 
nately divided; radical leaves on very long 
petioles; leaflets laciniately lobed; akenes 
glabrous, flat, orbicular, thin-edged; styles 
long; petals more than 5, yellow.—2. San 
Rafael. Corte Madera. Summer. 
4. R. Carirornicus Benth. Radical leaves 
pinnately ternate; leaflets laciniately cut; 
akenes glabrous, flat, firmly edged; styles 
short; petals more than 5; yellow.—2. Com- 
mon. Summer. 
5. KR. Bioomert Watson. Leaves 3-5-lobed, 
crenate; akenes lenticular; styles long, straight; 
petals yellow.2¢. Sunnyside. Summer. 
