Hydrocotyle. | UMBELLIFERZ. 197 
crenate ; petioles slender, 1-4in. long. Peduncles rather slender, 
shorter than the leaves; umbels 3-8-flowered. Flowers shortly 
pedicelled or almost sessile. Fruit large, flat, broader than long, 
notched above and below, often mottled; carpels with one rib on 
each face, and with the dorsal edge expanded into a broad wing.— 
Hook. f. Fl. Tasm. 1. 158, t. 33; Handb. N.Z. Fl. 86; Kirk, Stu- 
dents’ F'l. 188. 
Nort AnD Sout Istanps: In lowland swamps from Mongonui to North 
Canterbury, but often local. December—February. Also in Victoria and 
Tasmania. 
6. H. nove-zealandize, D.C. Prodr. iv. 67.—Very variable in 
size and habit of growth. Stems 3-12 in. long, much or sparingly 
branched, open or matted, creeping and rooting at the nodes, some- 
times ascending at the tips, pilose or almost glabrous. Leaves 
4-lhin. diam., orbicular-reniform with usually an open sinus, 
obscurely 5—9-lobed or -angled; lobes shallow, obscurely and ob- 
tusely crenate, rarely more acutely toothed, usually membranous 
but sometimes subcoriaceous, sparingly hairy or nearly glabrous ; 
petioles 4-3in. long, slender, usually pilose with reversed hairs 
above. Peduncles shorter than the leaves; umbels 5—12-flowered. 
Flowers shortly pedicelled. Fruit ;4,in. diam., broader than long, 
somewhat flattened, glabrous, pale-brown, sometimes mottled ; 
carpels rounded at the back, with an indistinct rib or groove on 
each face.—A. Cunn. Precur. n. 497; Raoul, Choix, 46; Hook. f. 
Fl. Nov. Zel. i. 83; Handb. N.Z. Fl. 86; Kirk, Students’ Fl. 189. 
H. dichondrefolia, A. Cunn. l.c. n. 498. H. intermixta, Col. in 
Trans. N.Z. Inst. xvii. (1885) 240. H. alsophila, Col. l.c. xviii. 
(1886) 261. H. involucrata, Col. l.c. xix. (1887) 262. H. amecena, 
Col. l.c. xxi. (1889) 83. 
Var. robusta.—Stems stout, suberect above. Fruit large, 4in. broad, tur- 
gid ; carpels with a groove on each face.—H. robusta, Kirk, Students’ Fl. 189. 
Var. montana, Kirk, l.c.—Stems stout, creeping, densely matted. Leaves 
usually with a narrow sinus, coriaceous, glabrous or nearly so, lobes shallow. 
Carpels with a groove on each face. 
NortH anp SoutH Isnanps, Stewart Isuanp: Abundant throughout, var. 
montana ascending to quite 4,000 ft. Var.robusta : Sandy beaches north of Auck- 
land, rare. November—March. 
A very yariable plant, but one that can generally be recognised without 
much difficulty by the shallow and rounded lobes of the leaves, and by the com- 
pressed fruits with thick obtuse margins. I am unable to maintain Mr. Kirk’s 
H. robusta as a separate species, the differences between it and the typical state 
being of a very trivial character. Closely allied to it is a large-leaved species 
gathered by Mr. Cockayne in forests in the Chatham Islands, in which the 
leaves are sometimes 2 in. diam. 
7. H. moschata, Forst. Prodr. n. 135.—More or less hispid or 
pilose, rarely almost glabrous. Stems 2-12 in. long, much branched, 
oiten densely matted, creeping and rooting at the nodes. Leaves 
g-lin. diam., reniform or orbicular with usually an open sinus, 
