Davis: RANUNCULI OF NORTH AMERICA. 499 
petals 1 to 3 or 5, pale yellow, about 1 line long; stamens only 
5 to 10: akenes oblong, hardly compressed, slightly margined ; 
beak very short: head of fruit oblong. Low, wet places, Dal- 
las, Tex., south and southeast. 
93. R. pusillus Porr. in Lam. Encycl. 6: 99. 1804. 
FR. Flammula Waut. Car. 159. 1788. Not Linn. 
FR. Bonariensis Poir. in Lam. Encycl. 6: 102. 1804. 
Fe. humilis Pers. Syn. 2: 102. 1807. 
Annual: plant % to 2 feet high, slender, weak, branching, 
glabrous: basal and lower stem-leaves mostly ovate, petiolate ; 
others nearly sessile, linear or lanceolate ; all entire or minutely 
toothed: petals yellow, few, barely exceeding the sepals; sta- 
mens I to 10: akenes obovate, tipped with the base of the style: 
head of fruit globose. Marshy ground, New York, New 
Jersey, to Florida, through Gulf region to Texas and Missouri. 
Var. Lindheimeri Gray, Proc. Am. Acad. 21: 367. 1886. 
LR. trachyspermus var. Lindhetmert ENGELM. ex Gray Pl. 
Lindh, 13: . 1850. 
wn ocoletiz GREENE, Pitt.2: 225. 1692. 
Low, rarely a foot high: akenes more papillose-roughened 
than in the type. Middle coast of California to Galveston, 
Tex., and New Orleans. 
94. R. Andersoni Gray, Proc. Am. Acad. 7: 327. 1868. 
Oxygraphis Andersont FREYN, Flora, '70: 140. 1887. 
About 6 to 8 inches high, stem one-leaved or a naked scape: 
basal leaves rather thick, 2 to 3 times ternately or pedately di- 
vided or parted, lobes linear to lanceolate: flowers I or 2; 
sepals glabrous; petals % inch long, pink or rose, orbicular, 
obovate or flabellate, claws narrow: akenes compressed, but 
wholly utricular with membranous walls, oblique obovate to or- 
bicular, 4% inch long, a very narrow membranous margin; apex 
abruptly sharpened with a very short style. Boise City, Idaho, 
Salt lake, Utah, to eastern Sierras of California and Nevada. 
95. R. juniperinus Jones, Proc. Cal. Acad. Sci., Ser. 2, 5: 
O16; 18o 5+ 
fe. Anderson? var. tenellus Wats. Bot. King Exp. 7. ¢. 7, 
ec -70. Loyd. 
Plant taller and more slender than A. Andersonz; usually 
branched once, 1-leaved and 2-flowered: radical leaves more 
