6 
BOTANY. 
north to the Arctic Sea and Greenland, and west to Caliiornia. Found in 
Truckee and Ruby Valleys, Nevada, and in Parley's Park, Utah ; altitude, 
4,300-6,000 feet; May-September. Var. hrachypus, T. & G., from California, 
is a short-peduncled form of this. (14.) 
Var. STAGNATiLis, DC. {R. divaricdtus^ of Gray's Manual.) Frequent 
forms occur connecting this variety with the last. It can hardly be R. 
divaricafus, Schrank, as European and Asiatic specimens of that species show 
a well-defined lamina to the segments of the leaves, while in American speci- 
mens they are always fiHform. The fruit of the two varieties varies in the 
degree of hispidness and acuteness of the achenia, and affords no reliable 
distinctions. Northern States and British America. Collected in Secret Val- 
ley, Nevada, and near Salt Lake City, Utah; 4,300-6,000 feet altitude ; May- 
September. (15.) 
Eanunculus Andersonii, Gray. Proc. Amer. Acad. 7. 327. Leaves 
radical, palmately 2-ternate, segments laciniately clefl, petiolulate; scape 
1-flowered ; calyx glabrous, persistent ; achenia 4-5" long, thin and vesicular, 
obovate, compressed, with a narrow ventral wing and shghtly margined dor- 
sally, glabrous, mucronate with a very small subulate recurved style ; seed 
cyhndrical, (1-1 long,) narrowly winged along the entire ventral margin, 
attached above the base of the achenium.— Plant 3-6' high, with a coarsely 
fibrous, almost fascicled root, either wholly glabrous or the dilated petioles 
and lobes of the leaves sparingly ciliate with whitish deciduous hairs; 
scape exceeding the somewhat fleshy leaves ; flower V in diameter, with 
occasionally a lobed bract near the base; petals suborbicular, with a nar- 
row claw and small nectariferous scale, deep-pink, the nearly equal sepals 
margined with the same color ; wing of the seed extending beyond the 
rhaphe both above and below. The somewhat petaloid sepals and the 
withered petals are persistent at the base of the dense globular heads (9" 
in diameter) of maturing fruit. In several respects this is a remarkable species 
in the genus Ranunculus. The fruit of this species, now first collected, 
is strikingly different from that of R. glacialis and Chamissoms, yet of the 
same type, showing that the affinity of the species had been rightly esti- 
mated. The akenes are several times larger, thinner, and more bladdery, 
tipped with a proportionally very short style, the dorsal edge more or less 
margined toward the base, but without the wing which is so conspicuous in 
R. glacialis. The long and terete seed, very small in proportion to the cavity, 
