Hydrocotyle. | UMBELLIFERAE. 645 
Hook. f. Fl. Nov. Zel.i (1853) 84; Handb. N.Z. Fl. (1864) 85 ; T. Kirk 
Students’ Fl. (1899) 187; Cheesem. Man. N.Z. Fl. (1906) 195; IU. N.Z. Fl. 
i (1914) t. 58. H. echinella Col. in Trans. N.Z, Inst. xx (1888) 191. 
H.‘coneinna Col. lic. xvii (1885) 239. 
Norra anp Soutn Isutanps: Not uncommon in moist shady woods from the 
North Cape southwards. Sea-level to 2500 ft. November—March. 
A very distinct plant, easily recognized by the large size, softly pilose habit, deeply 
lobed leaves, long peduncles, and pedicelled flowers. 
2. H. tripartita R. Br. ex A. Rich. in Ann. Sc. Phys. iv (1820) 209, t. 61, 
f. 25.—Usually densely matted, dark-green, smooth and shining, glabrous or 
nearly so. Stems branched, filiform, creeping and rooting at the nodes, 
1-4 in. long, Leaves coriaceous or fleshy, }-}in. diam., 3-5-partite to the 
base ; leaflets cuneate, 2-3-toothed or -lobed at the tip or quite entire ; 
petioles 4-2in. long; stipules rather large, entire. Peduncles slender, 
shorter than the leaves; umbels 2—6-flowered. Flowers small, shortly 
pedicelled or sessile. Fruit small, rather turgid, brownish, glabrous. 
Carpels rounded at the back, convex on the sides, with one obscure rib 
on each face.—Hook. f. Fl. Nov. Zel. i (1853) 83; Benth. Fl. Austral. m 
(1866) 341: 7. Kirk Students’ Fl. (1899) 188; Cheesem. Man. N.Z. FI. 
(1906) 196. H. muscosa R. Br. ex A. Rich. Ann. Sc. Phys. iv (1820) 208, 
t. 61, f. 27; Hook. f, Handb. N.Z. Fl. (1864) 86. 
Var. hydrophila... Much smaller and more delicate; stems $—-lin. long. Leaves 
4-+4in. diam. ; leaflets minute, entire or with 2-3 shallow crenatures. Umbels 1-2- 
flowered. Fruit much smaller, but otherwise as in the type.—H. hydrophila Petrie 
in Trans. N.Z. Inst. xxix (1897) 426. 
Nortu Istanp: Hawke’s Bay and Tongariro, Colenso/ Var. hydrophila: Lower 
Waikato River, H. Carse/ Matata (Bay of Plenty), Petrie! Ruahine Mountains, B. C. 
Aston. ScutH IsLanpD, Stewart Istanp: Not uncommon in marshy places. Var. 
hydrophila ; Otago— Tomahawk Lagoon, Petrie! Wickliffe Bay, Bluff, B. C. Aston / 
Sea-level to 4000 ft. 
The trifoliolate leaves at once separate this from all the other New Zealand 
species. Mr. Petrie’s H. hydrophila has no distinguishing characters apart from its 
much smaller size. The typical form is also found in Australia and Tasmania. 
3. H. dissecta Hook. f. Fl. Nov. Zel. 1 (1853) 84.—Small, slender, 
matted, more or less hispid-pilose. Stems much branched, creeping and 
rooting, 3-9in. long. Leaves alternate or in alternate fascicles, 4-1 in. 
diam., orbicular or orbicular-reniform, 3—7-lobed almost to the base ; lobes 
obovate-cuneate, acutely toothed or almost laciniate, hairy on both surfaces ; 
petiole $-Il}in. long. Peduncles variable in length, $2 in. long, longer 
or shorter than the leaves ; umbels 20-40-flowered. Flowers small, sessile. 
Fruit densely crowded, small, red-brown, glabrous; carpels somewhat 
turgid, with one obtuse rib on each face; margins acute.—Handb. N.Z. 
Fl, (1864) 86; 7. Kirk Students’ Fl. (1899) 188; Cheesem. Man. N.Z. FI. 
(1906) 196. 
NortH Istanp: Near Maunganui Bluff, Petrie! Northern Wairoa, 7. F. C. ; 
Whangarei, H. Carse! Petrie! T. F. C.; Matakana, 7. Kirk! Hunua, 7. Kirk! 
T. F. C.; Lower Waikato, H. Carse! Hawke's Bay, Colense. SoutH IsLanp: 
Marlborough, J. H. Macmahon! Motupiko, Nelson, H. H. Allan; near Westport, 
W. Townson! Otira Valley and Catlin’s River, Petrie / Sea-level to 1200 ft. 
November—February. 
A well-marked plant, perhaps more closely allied to H. moschata than to any other, 
but differing widely in the deeply and sharply lobed leaves. Mr. Carse sends a form 
with proliferous umbels. 
hualte Whenua  ° bis/3) ITH. 
