Batrachospermum moniliforme. Not uncommon.

" pulcherrimum, H., xiv., 1. From river Esk.

" vagum, H., Ixiii., 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.