? “« 
-« s 
188 ‘PENTANDRIA. DIGYNIA. 
"pressed. | Seed gibbously convex, marked with 
- $strie; commissure narrow, immarginate, flat. 
Spee lucrum none. . 
_ Umbell imperfect; umbellulz about 4, 3 to 5-flowered; 
involucell unequal, 3 to 5 or 6-parted; leaf solitary, radi- 
cal, biternate, segments multifid; scapes gosta a con- 
=. 
similar involucrate leaf; flowers stellate; root a globular 
so thber. te 
ae E. bulbosa. 
Sison bulbasum, Mich. 1. p. 169. Hydrocotyle composita. 
, ~ Pursh, Flor. Am. 1. p. 190. H. ambigua, of the same, <. 
_p. 732. H. bipinnata. Mublenberg’s Catalogue. : 
~ Qxss. Caudex ascendant, about an inch high. Leaf soli- 
'y, emitting 2 and sometimes 3 scapes from its sheath; 
mina biternately divided, partitions subternate; seg- 
ments subrhomboidal, cleft, ultimate lobes trifid, obtuse, 
with minute points. Scapes round, 4 to 5 inches high, 
terminating in an irregular umbell of 3 or 4 rays, subtend- 
ed at the base by a sessile ternate leaf subdivided simi- 
larly to that of the root. Leaves of the involucell entire, 
simple, linear-oblong. Flowers white, stellately expand- 
ing. Petals obovate-oblong, or attenuated downwards so 
as to appear unguiculate. Calix obsolete, marginal. Sta- 
mina, filaments erect, exserted longer than the petals, 
anthers oval, deep brown. Styles subulate, persistent, 
‘twice the length of the germ; stigmas obsolete. Germ 
_ turbinate, Jatetally a truncated above. Seed 
gibbously convex, marked with 3 curved lines, (my spe- 
_, cimens were not sufficiently advanced to determine the 
ultimate character of the seed) 2 lateral and 1 dorsal, the 
Margin of the commissure being inconspicuous and form- 
ing nearly a right line. 
Han. In shady alluvial sojls, subject to inundation. 
2 Near Lancaster, Pennsylvania; near Pittsburgh; on the 
ig Ohio, Missouri, Tennessee, &c. 
Of this genus there are probably 2 species, but the 
second has not been indicated; Mr. Pursh’s Hydrocotyle 
ambigua \ have now before me, which is’ unquestionably 
