Myriophyllum. | HALORAGIDACEAE. 625 
with a pair of minute laciniate bracts at the base of each. Calyx-lobes 
present in both sexes, deltoid, jagged. Petals in the males only, linear- 
oblong. Stamens 8. Stigmas usually 4, plumose. Nuts 4, §in. long, 
laterally compressed, usually with a single or double row of tubercles down 
the back, but sometimes smooth and rounded.—7’. Kirk Students’ Fl. (1899) 
151; Cheesem. Man. N.Z. Fl. (1906) 151; Jl. N.Z. Fl. 1 (1914) t. 46. 
M. variaefolium var. b, Hook. f. #l. Nov. Zel. 1 (1853) 64. 
Norra Istanp: In swamps from Ahipara to the Upper Waikato, but often local ; 
apparently rare farther south. Hawke’s Bay, Colenso/ Mungaroa, Wellington, 7’. Kirk! 
Sourn Istanp: Awatere, 7. Kirk! Moutere, Nelson, 7. F. C.; near Westport, 
W. Townson! Hokitika, Tipler. Sea-level to 2000 ft. December—February. 
This is seldom found in lakes or streams, and is a marsh-plant rather than a true 
aquatic. It often covers large stretches in swamps that are quite dry in summer. 
4. M. peduneculatum Hook. f. im Lond. Journ. Bot. vi (1847) 474. 
—A closely compacted prostrate plant, often forming wide - spreading 
patches of considerable size. Rhizomes creeping and rooting, putting 
up many simple or branched suberect or ascending stems 1-3 in. high. 
Leaves all opposite, ;4—-4+ in. long, linear, rounded or subacute at the tip, 
thick and fleshy, quite entire. Flowers unisexual, solitary in the axils 
of the leaves, each flower with 2 minute ovate-triangular bracteoles. 
Female flowers in the lower part of the branches, sessile or nearly so; 
calyx-tube tetragonous, 4-grooved; lobes 4, minute, triangular; styles 4, 
plumose, spreading, petals wanting. Male flowers just above the females, 
usually 2, seldom more; calyx-lobes 4, triangular, acute; petals 4, spoon- 
shaped; anthers 4, rather large. Fruit of 4 nuts connected at the base, 
usually finely punctate or rugulose.— Fl. Tasm. i (1860) 122, t. 23, £. B; 
Benth. #l. Austral. 11 (1864) 489 (the Australian specimens alone); Schindler 
an Pflanzenr. Heft 23 (1905). 
CHATHAM IsLANDS: Peaty swamps, apparently not uncommon, Buchanan, Hawkins, 
Cockayne ! Sea-level to 500 ft. Also found in Tasmania and northwards through 
the Australian Alps to New South Wales. 
5. M. Votsehii Schindler in Pflanzenr. Heft 23 (1905) 85. — Forming” 
close matted patches. Rhizomes creeping and rooting; stems short, 
simple or branched, ?-1}in. high. Leaves all opposite, narrow-oblong, 
zo-¢ in. long, broadly rounded at the tip, entire, rather thick and fleshy, 
the uppermost concave and spoon-shaped. Flowers solitary in the upper 
axils of the leaves, unisexual; each flower furnished with 2 narrow- 
triangular bracteoles. Lower flowers female, sessile; calyx-tube tetra- 
gonous, 4-grooved ; lobes not evident; petals and stamens not present ; 
styles 4, divergent. Male flowers uppermost, usually 2-4; calyx-tube 
pedicelled, lobes wanting; petals 4, oblong, concave, and thus spoon- 
shaped, about ;4;in. long; stamens 8, anthers large, in. long. Fruit 
purplish-brown, punctate-rugulose.—- M. pedunculatum Hook. f. Handb. 
N.Z. Fl. (1864) 67 (so far as the New Zealand localities are concerned, but 
not M. pedunculatum of Fl. Tasm. i (1860) 122, t. 23). So also 7. Kirk 
Students’ Fl. (1899), and Cheesem. Man. N.Z. Fl. (1906) 152. 
NortH AND SoutH Isuanps, Stewart Isnanp: Auckland—North Cape district, 
fp F. , fi. Hf. Matthews ! H, Carse! west coast, near Helensville, Lake Takapuna, 
aker R .; Maioro, near Waiuku, Petrie / 
Wellington—Lyall Bay and Miramar, Buchanan / Nelson—Cape Farewell, 7. Kirk : 
Granity Creek and Buller Valley, near. Westport, W. Townson / Westland—Okarito, 
