Hydrocotyle.) UMBELLIFERAE. . 647 
Var. robusta.—Stems stout, suberect above. Fruit large, % in. broad, turgid ; 
carpels with a groove on each face.—H. robusta T. Kirk Students’ Fl. (1899) 189. 
Var. montana 7. 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. 
Norra anp Soura Isnanps, Stewart Istanp: Abundant throughout, var. 
montana ascending to quite 4000 ft. Var. robusta : Sandy beaches north of Auckland, 
rare. November—March. 
A very variable plant, but one that can generally be recognized without much 
difficulty by the shallow and rounded lobes of the leaves, and by the compressed 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 Dr. Cockayne in forests in the 
Chatham Islands, in which the leaves are sometimes 2 in. diam. 
7. H. mosehata Forst. f. Prodr. (1786) n. 135.—More or less hispid or 
pilose, rarely almost glabrous. Stems 2-12 in. long, much branched, often 
densely matted, creeping and rooting at the nodes. Leaves ¢—1 in. diam., 
reniform or orbicular with usually an open sinus, distinctly 5~—7-lobed ; 
lobes sharply toothed, usually hispid on both surfaces but sometimes 
glabrescent, firm or almost coriaceous ; petioles rather stout, §-21n. long, 
usually pilose above with reversed hairs. Peduncles longer or shorter 
than the leaves; umbels 5—40-flowered. Flowers sessile or nearly so. Fruits 
usually densely crowded, minute, s4-7;in. diam., red-brown; carpels 
83: Handb. N.Z. Fl. (1864) 87; T. Kirk Students’ Fl. (1899) 189 ; 
Cheesem. Man. N.Z. Fl. (1906) 197. H. sibthorpioides Col. in Trans. N.Z. 
Inst. xxi (1889) 83., 
. Ap« Rowe Ce: TEN 1, Sa °° BIC. 
KERMADEC ISLAND oRTH AND SoutH [suanps, CHATHAM IsLANDS: Abundant 
throughout, ascending to 2000 ft. November—March. 
Closely allied to H. novae-zealandiae, but separated by the distinctly lobed leaves, 
by the lobes being acutely toothed, and by the much smaller crowded fruits, which are 
sharply keeled on the back. 
8. H. mierophylla A. Cunn. Precur. (1838) n. 496.—Glabrous or 
with a few loose hairs on the petioles and peduncles. Stems 1-3 in. long, 
slender or rather stout at the base, creeping and rooting, often matted. 
Leaves 4,4 in. diam., orbicular-reniform with usually a closed or narrow 
sinus, 5-7-lobed ; lobes shallow, rounded, obtusely crenate ; petiole 1-4 in. 
long; stipules rather large for the size of the plant. Peduncles variable in 
length, longer or shorter than the leaves; umbels 2—6-flowered. Flowers 
sessile or nearly so. Fruit minute, glabrous, 3-;4,1n. diam.; carpels 
rounded at the back, with an obscure rib or groove on each face.—Hook. f. 
Fl. Nov. Zel. i (1853) 84; Handb. N.Z. Fl. (1864) 87; LT. Kirk Students’ 
Fl. (1899) 190; Cheesem. Man. N.Z. Fl. (1906) 198. ih 
NortH AND Sourd Istanps, STEWART ISLAND: From Mangonui southwards, but 
apparently local. December—February. 
Cunningham’s original description is not at all good, and without access to his 
specimens I cannot be certain that the pliant described above is the same as his. [t 
differs from H. novae-zealandiae in the smaller size, glabrous and more deeply divided 
leaves, few-flowered umbels, and smaller fruit. From H. moschata it is at once removed 
by the round-edged carpels. 
