136 
broad, with evident ribs, and no oil-bearing la 3 '’er: seed-section 
broadly oval. (Fig. 165.) 
From Canada to Minnesota, and southward to the mountains of N. 
Carolina. 
6. H. ranunculoides L. f. Suppl. 177. Usuall}" floating:- 
leaves thicker, round reniform, 3 to 7-cleft, with crenate lobes: 
peduncles 1 to 3 inches long, reflexed in fruit: capitate umbel 5 to 
10-flowered: fruit 1 to Ij^ lines broad, with rather obscure ribs, 
and no layer of strengthening cells about the seed cavity': seed- 
section oblong. (Fig. 166.) — H. natans Torr. & Gray, FI. i. 599. 
E. Pennsylvania to Florida, thence westward to Texas and California, 
and up the coast to Oregon {Howell, Henderson) . 
■j" “I* Fririt larger (2 to 2^ lines broad)^ with proniinent 
secondary ribs and reticulations : the 2 to A:~Jlowered umbel sub- 
tended by an involucre oyf two conspicuous bracts. 
7. H. Asiatica, L. Spec. 234. Smooth or somewhat pubes- 
cent: petioles (3 to 4 inches or even a foot long) and peduncles 
(2 inches or less long) clustered on creeping stems or runners : 
leaves ovate-cordate, repand-toothed, thickish: seed-section nar- 
rowly oblong. (Fig. 167.) — H. repanda Pers. 
Maryland to Florida, and west to Texas. 
The petioles are very variable in length, an extreme form being 
Var. Floridana, in which the petioles are an inch or less 
long, making the leaves appear in rather close clusters along the 
rootstock, and the pejtioles and somewhat larger fruit are more or 
less pubescent. 
Florida (A. H. Curtiss), Polk county (./. Donnell ///(); and found also 
in the West Indies and Guatemala {Turckheim). 
59. ERIGENIA 
Nutt. Genera, i. 187. — Low glabrous 
nearl}^ acaulescent plant, from a deep-seated tuber, with ternately 
decompound leaves and oblong segments, no involucre (unless a 
reduced leaf), involucels of leafy linear or spatulate bractlets, and 
white flowers in small compact umbels. 
1. E. bulbosa Nutt. 1. c. 188. Span or so high: leaves 
radical except those subtending the imperfect umbels : pedicels ver}' 
short: fruit 1 line long 1)4 lines broad. (Fig. 168.) 
"SY. Canada to Maryland, and westward into the Mississippi Yalley, 
