Batrachospermeæ.
1. Batrachospermum moniliforme. Not uncommon.
2. {{{1}}}„ pulcherrimum, H., xiv., 1. From river Esk.
3. {{{1}}}„ vagum, H., lxiii., 2. From a creek on the Ruataniwha Plains. An unusual specimen of this plant was given me by Mr. Hamilton, from the Horokiwi river. Its peculiarity consists in the development of a vast number of hair-like appendages, on some parts of the filament, of considerable length, and forming in some places a densely intricate matwork round the filament which not only obscures it but also the whorls that emanate from it.
Chætophoracæ.
1. Draparnaldia tenuis, H., xi.
2. Chætophora endiæfolia, H. ix.
{{{1}}}„ elegans, H., ix.
{{{1}}}„ sp. n.
Fig. 1.
In the species marked n. above, the filament tapers from base to apex. It is irregularly branched, with few ramuli. Gelatinous investment not apparent. Cells of the ramuli (varying from four to eight) filled with endochrome. Terminal cell broad at the base, narrowing to a not very acute point, exceeding the ordinary cells three or four times in length, hyaline. Cells of the filament and branches as long, or twice as long, as broad. Antheridial cells half to a quarter as long as broad, compressed. Stipitate, capsular fructification was observed attached to both sporiferous and antheridial filaments. Zoospore, the only one seen, commencing to germinate, quadrangular in outline, contains two large sporules, surmounted by four cilia, one at each angle; motile.
Confervaceæ.
1. Conferva bombycina, M.D., p. 158.
{{{1}}}„ floccosa, M.D., pl. V.
2. Cladophora crispata, H., lv.
{{{1}}}„ glomerata, H., lvi.
{{{1}}}„ lyallli, Hooker, Fl. N.Z.
{{{1}}}„ sp. n. (1).
{{{1}}}„ sp. n. (2).
3. Ulothrix mucosa, M.D., pl. V.
Cladophora lyallii is described by Hooker—"Handbook N. Z. Flora," p. 717, and "Fl. N.Z. Ant. Voyage," vol. ii. p. 262. He mentions it as having been found in Stewart Island.
Cladophora crispata occurs in Kerguelen's Land. Hooker "Ant, Voyage."
