68 xxvii. HALORAGiiJE. [Gunnera. 
and calyx-lobes ciliate, rarely entire. Drupes very small, ovoid, about T '^ in. 
ong. 
Moist shady places throughout the islands, Banks and Solander, etc. 
2. G. densiflora, Hook. /., n. sp. Bhizome creeping, tufted. Leaves 
orbicular cordate or broadly ovate-cordate, glabrous, minutely toothed, i-1 in. 
diam. ; petioles 1-1 k in., villous or glabrescent. Spike on a stout, erect, 
villous or glabrescent peduncle. Flowers crowded, males with short filaments ; 
bracts and calyx-teeth small, subulate. Drupes crowded, small, pendulous, 
j-’o in. long, oblong. 
Middle Island : Acheron and Clarence rivers, alt. 4000 ft., Travers. Similar to Q. 
monoiea, but the leaves are never lobed, though minutely and sharply toothed, the peduncles 
stout, flowers spiked, crowded, filaments short, and drupes larger, oblong, and pendulous. 
3. G. prorepens, Hoolc. f. Fl. N. Z. i. 66. Usually much larger than 
the two preceding species, often 1 ft. high, but sometimes small. Leaves ovate 
or oblong, rounded at the top, rounded or cordate at the base, crenulate, 
^—2 in. long ; petiole 1-8 in. long, glabrous or more or less hairy. Peduncle 
stout, as long as the petiole. Flowers spicate. Drupes sessile, large, 
in. long, obovoid. 
V ar. ? /3. Smaller, leaves ovate-oblong, narrowed into the petiole, deeply toothed ; proba- 
bly a distinct species. 
Northern Island : in subalpine wet localities, Colenso. Middle Island : west coast, 
LyaH. Var. ? /3. Northern Island, Colenso. Middle Island : mountains of Nelson, 
Rough; Clarence valley, 3000 ft., Travers; alps of Canterbury, Haast ; and of Otago, 
Hector and Buchanan. 
I have what appears to be a fourth species of Gunnera, from the base of Tongariro, Co- 
lenso, etc. ; and the Middle Island, Lyall; with the leaves of G. densijlora, and fruit of 
G. monoiea, but too imperfect for description. 
4. CALLITRICHE, Linn. 
Small, branched, glabrous, delicate aquatic or marsh plants. Leaves oppo- 
site, linear or spathulate, membranous, quite entire. — Flowers minute, solitary, 
rarely 2 together, axillary, sessile, or very shortly peduncled. Male 11. : Bracts 
0 or 2, deciduous, narrow-oblong, membranous, curved. Perianth 0. Sta- 
men 1 ; filament capillary; anther 2-celled, bursting by lateral slits, which 
becoming confluent above, assume a horse-shoe form. Female fl. : Bracts as 
in the male or 0. Perianth (if any) adherent to the ovary, which consists of 
4 laterally compressed 1-celled carpels ; styles 2, filiform, papillose all over ; 
ovule 1 in each cell, pendulous. Fruit 4 minute, flattened, keeled or winged 
carpels. Seed oblong or cylindric ; testa membranous ; albumen fleshy ; 
embryo small, terete. 
A small geuus of doubtful affinity, found in all parts of the temperate w'orld. 
1. C. verna, Linn. ', — Fl. N. Z. i. 64. Stems 5-10 in. long in water, 
shorter when growing on damp soil. Leaves in. long, obtuse, 3-nerved, 
orbicular spathulate or linear-obovate. Male and female flowers sometimes 
collateral on the same pedicel. Carpels narrowly winged at the back. 
Common in wet soil and watery places throughout the islands, Banks and Solander, etc. 
Lord Auckland’s group, and Campbell’s Island, J. L. H. Abundant in the antarctic 
and northern and southern temperate regions. 
