Stems 1-2 feet long, but always depending on tbe depth of water, sparingly branched. Leaves all whorled in
fours; lower 1 -2 inches long, capillaceo-multifid; upper crowded, broadly linear-oblong or narrow linear, blunt,
sharply seiTate, or pinnatifid. Flowers axillary. Stamens eight.—This looks entirely the same as a common Tasmanian
aud South American species, and nearly approaches to M. verticiltatiim of England. The fruit I have only seen
on South American specimens, and have described as of four short, oblong, smooth carpels, convex on the back.
2. Myriophyllum va n c sfo lhm , H o o k .fil.; foliis 5 -7 -n a tim verticillatis inferioribus capillaceo-multifidis
iiitermediis piuuatifidis superioribus anguste biieai’ibus obtusis, floribus axillaribus 8-andris dioicis ?
H o o k.Jil. Ic. P la n t. A 289.
Yar. foliis supremis magnis pinnatifidis segmentis capillaceis, carpellis tu rg id is hie illic tuberculatis.
An sp. diversa ? A n M . Indicum, Roxb. ?
H a b . N o rth e rn and Middle Is la n d s ; in bogs and ru n n in g water, frequent, Colenso, etc. Akaroa,
Eaoul.
Stems in shallow water a few inches, in deep water several feet long. Leaves five to seven in a whorl; the lower
capillaceo-multifid; intermediate smaller, pinnatifid; upper still smaller, narrow linear, blunt, -X-f inch long, entire.
Flowers on the summit of the upper branches. Fi'uit unknown, except in var. 3, which may be another species: there
of four large, tnbercled, short, broadly oblong carpels. The leaves of that variety are much larger, 1 -1 ^ inch long,
all deeply pinnatifid, with capillary segments.—Mr. Colenso sends the male flowers of M. varicefolium with var. 3,
whence I presume them to belong to one species; the latter closely resembles the M. Indicum of India, but th e .
fruit is less tnbercled; also the M. heterophyllum of North America, and M. vertidllatum of Europe, but the leaves
of the flowering specimens are always longer than the flowers. I t is a very common Tasmanian plant.
Gen. I I I . C A L L IT R IC H E , L .
Flores unisexuales. M a sc . Stamen solitarium, bracteis (petalis ?) 2 linearibus suffultum ; filamento
elo n g ato ; anthera 2-loculari; loculis rimis lateralibus demum confluentibus dehiscentibus. E l . foem.
Calyx obsoletus. Pe ta la 0. Ovarium tetragonum, 4-loculare. Stigmata 2, filiformia. Fm c tu s 4-coccus;
coccis compressis, indehiscentibus, 1-locularibus. Semen solitarium, p en d u lum ; embryone axi albuminis
carnosi, recto ; radicula tereti, hilo proxima.
Very delicate green, smooth, water herbs, partially floating, with opposite, entire leaves, often approximate and
apparently whorled at the end of the branches, which are spread out on the top of the water, and very minute,
sohtary, sessüe, axillary, imperfect, uni- or bi-sexual ? flowers. Male J i o w e r as tamen with two membranous bracts
at the base; filament slender ; anther two-celled, bursting inwards longitudinally, and, from the valves becoming
confluent and rolhng up, appearing to have opened transversely. Female : four flat carpels, loosely cohering in the
form of a cross, and enveloped with the quite inconspicuous tube of tbe calyx, which bas no apparent limb. Stigmas
two, long, filiform. Fruit of four, hard, flattened carpels, each one-celled, with one pendulous albuminous seed. Embryo
terete, axile, with two small cotyledons, and radicle pointing to the hilum.—A genus of few species, and those
variable in characters, hke most water-plants ; found all over the temperate world, the New Zealand kind being particularly
widely diffused. (Name from ifaXof, beautiful, and 6pi^, hair, from the long, floating, slender stems.)
1. Callitriche verna, L. Fl. Antarct. v. \ . p . 11, et v. 2 .p . 272.
Var. ;3 ; foliis ro tu n d a tis petiolatis, floribus hermaphroditis v. Î and collateralibus, carpellis dorso
alatis. C. tenella. B a n k s et Sol. M S S .
H ab . A b u n d an t in deep, still, and ru n n in g wate r; also in pools, and on wet ground, Bank s and
Solander, etc.
An extremely variable plant. Sterns creeping on the ground, or erect in water, branched, 2-10 inches, and even
in deep water a foot long. Leaves variable in shape according to the situation, shorter and broader in terrestrial
forms, long and linear in submerged parts, generally more or less spathulate, i - 1 inch long, very membranous, quite
entire, narrowed into a petiole, three-nerved. The plant I have called var. 3 is quite similar, but the leaves are shorter
and rounder, more distinctly petiolate; the female flower is seated on a short pedicel, which also bears a solitary stamen.
I f this indicates a bisexual flower, it follows that the ovary is really superior, and is not enveloped like Myriophyllum
in the tube of the calyx; but I rather regard this variety as bearing in the axil of the leaf two flowers, a female, and
a male consisting of a single stameiL
Gen. IV . G U N N E R A , L .
Flores iini-bi-sexuales, bracteolati. Calycis tu b u s ovario adhterens, te reti v. a n g u la to ; limbo 2 -3 -
lobo. Pe ta la 2, v. 0, calycis lobis alterna, cóncava, decidua. Stamina 2, petalis o p p o s ita ; antheris 2-lo-
culaiibus, rimis lateralibus dehiscentibus. Ovarmm 1-loculare, 1 -o v u la tum ; stylis 2, elongatis, simplicibus,
staminibus oppositis. Fructus drupaceus, indeMscens; endocarpio osseo. Semen solitarium, pendulum,
loculum im p len s ; te sta membranác ea; albumine dense carnoso, oleoso; embryone mínimo, cordato, hilo
proxima; radicula brevi, obtusa, supera.
Herbaceous, moncecious and dimcíous, or hermaphrodite plauts, with an underground rhizoma or with creeping
scions, alternate, petiolate radical leaves, sometimes with erect, leafy scapes, and spiked or racemose, uni-bi-sexual,
small, green, bracteated flowers. Calyx tube adherent with the ovarium; limb two- to three-toothed or lobed.
Petals two or absent, alternating with the calyx teeth, deciduous. Stamens two, opposite the petals. Anthers innate,
two-celled, bursting laterally. Ovary one-celled, with one pendulous ovule, and two long, simple, often recurved
styles opposite the stamens. Fruit a small (usually red) drupe, with one pendulous albuminous seed filling the
cavity; testa membranous; albumen dense, fleshy; embryo very minute, broadly heart-shaped, two-lobed, placed at
the upper end of the seed; radicle next the hilum*.—This is almost wholly a southern genus, ranging from Java iu
the Old World, and Peru iu the New, to the Cape of Good Hope, Cape Horn, New Zealand, Tasmania, and Tahiti.
The acid leaves of a great South American species are used as food, and taste like rhubarb. (Named in honour of
John Ernest Gunner, a learned Swedish bishop and botanist.)
1. Gu n n era monoica, R ao u l; parce pilosa v. glabrata, caule repente v. stolonifero, foliis cordato- v.
reuiformi-rotundatis obscure 4-lobis inasqualiter crenato-dentatis, racemis folio subaequilongis parce ramosis,
floribus paniculatis raceraosisve inferioribus $ , calycis lobis acuminatis, bracteolis petalisque ciliato-
laceris, filamentis elongatis, drupis obconicis carnosis. Baoul, Choix de Plantes, v. 15. t. 9. G. prorepens,
Fl. Antarct. v. 2 .p . 2 7 4 [in not.).
H ab . N o rth e rn and Middle Is la n d s ; common in wet places. Bay of Islan d s, Cunningham, etc .; Akaroa,
Ra o u l; Milford Sound, L y a ll.
A small creeping herb, forming tufts on wet banks, etc., vvith small red berries, aud very inconspicuous
green flowers, imws-A—| inch across, reniform, orbicular, or cordate, deeply crenate aud obscurely three-lobed;
both surfaces, especially the veins underneath, petioles (1 -lY inch), aud suckers covered with scattered white
hairs. Panicles hnear, erect, sparingly branched, with scattered, nearly sessüe flowers. Lower flowers female (often
apetalous?); upper male or hermaphrodite. Bracteoles and linear-spathulate concave petals deeply laciiiiate.
Calyx-lobes erect, with a long point. Filaments long; anthers with a small claw at the apex. i inch
long, obcuneate, fleshy.— The trivial name monoica is not happy, most species of the geuus being veiy frequently
monoicous.
* [n the ‘ Flora Antarctica,’ vol. ii. p. 273, I have erroneously described the embryo as erect, aud as at the
opposite end of the seed. IIow the error occurred I know not, as 1 have long been aware of its position being
always as above described.