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5. Ranunculus L. BuTrERcup. 

 Sepals 5. Petals 5 or multiple, with a scale 

 at the base. Ovaries co, 1-ovulate. Fruit oo- 

 akenes. 



1. R. HEBECARPUS Hook. & Am. Akenes 

 hispid, roughened; floral parts of small size 

 aud reduced in their typical number. — 0. 

 Marin County. Niles. Spring. 



Flaccid annual of the habit of Bowlesia. 



2. R. MURICATUS L. Lower leaves rounded, 

 3-lobed, irregularly crenate; akenes tubercu- 

 late, spinose; Horal parts typical and of ordi- 

 nary proportions; petals yellow. — 0. Pre- 

 sidio. Summer. 



3. E. 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. — It- San 

 Eafael. Corte Madera. Summer. 



4. R. CALtFORNicus Benth. Radical leaves 

 pinnately ternate; leaflets laciniately cut; 

 akenes glabrous, fiat, firmly edged; styles 

 short; petals more than 5; yellow. — U- Com- 

 mon. Summer. 



5. R. Bloomeri Watson. Leaves 3-5-lobed, 

 crenate; akenes lenticular; styles long, straight; 

 petals yellow. — If. Sunnyside. Summer. 



