Hydrocotyle. } LVI, UMBELLIFERS. 339 
Section I. EUHYDROCOTYLE, DC.—Leaves (except in H. alata) orbi- 
cular and peltate or deeply cordate, or divided to the base into 5 or more seg- 
. ents. Petals valvate. Carpels with the intermediate ribs alone prominent 
. meach side, or cae with the lateral ones also distinct and prominent. 
; DC. Prod. iv. 59. Stems slender, creeping in 
į Point tufts of leaves and [^ uncles. ` i orbieular, z to 1 in. diameter 
| attached by the centre to a rather long poli with about 9 or when luxu- 
but Very soon worn awa from the rooting nodes Peduncles shorter than 
ith 
- 1842; E cla Muehl. ; DC. Prod. iv. 59; “Hi verlicillata, Thunb. ; 
i d Sone ys ; 
X. land, ton Bay, Leich 
S. Wales. une bg d ere unda River, O/dfield. 
bane den SÉ Wellington, Gipps Laud, and Murray river, F. Mueller ; near Mel- 
e, mso 
lia. St. Vincent’s Gulf, Gawler river, F. Mue 
The Species is A distributed over the temperate regions e "both hemispheres. 
?. H, pe uncularis, R. Br. in A. Rich. Hydroc. 62. t. 61.f. 26. Stems 
wi sr eeping ge some length, with numerous very short flowering 
ranches Biet with imbricate stipules forming usually little densely 
. tufts. Leaves orbicular-cordate or reniform, rarely above 2 lines dia- 
g Be shortly broadly and obtusely 5-lobed. Peduneles pera sapai but 
x always exceeding the leaves, bearing a head of 3 to ll flowers. 
e. valvate. Fruits about $ line broad, carpels with convex sides, each 
a d. i 
Th prominent curved rib. Styles short.—D0. Prod. iv. 66; Hook. f. FI. 
um. i. 159. t, SJB. 
i Prem ra Marshes at Circular Head, summits of the Western Mountains, Hamp- 
v Hills, ee, J. D. Hooker and other Hook. Lond 
x Sracilenta, Hook. f. Mo i diserait i . —H. gracilenta, Hook. f. in Hoo 
Journ, vi, This is much like the most slender and smallest forms of H. apa ip tn " 
A wa habit different, the flowers much fewer, the ribs o e frui 
rom 
H. hirta, R. Br. 
Se len rat at least at the a an "i erc? and eg or less hirsute. 
e m or cen divided to about : or 4, rarely dee 
lk ciliate or fringe 
feng head of nume acer (10 to 40) minute flowers, sessile or very shortly 
S tometer a Bracts small. Petals valvate. Fruits not more than 1 line 
1 T and often smaller, very closely packed in a small m head, 
