tary, lateral spikelets, 2–3 one always pedunculate, 3-flowered glumes imbricated, ovate-lanceolate, margins scarious. Bristles 6 shorter than the style, stigmas 3; nut triquetrous. Hab.—North Island—at remarkable saline springs, Glenburn, East Coast. Forming large masses in the immediate vicinity of the springs. Allied to S. pauciflorus, Hook, f., but a much smaller, less tufted plant, with narrower, shorter spikelets, and broader glumes. Agrostis Muscosa, n.s. A small grass forming wide patches, not more than one inch in height. Root creeping. Leaves longer than the culms, filiform, flaccid, more or less recurved, ligule minute lacerate. Panicle hidden among the leaves, recurved, ¼″–½″ in height, few flowers. Empty glumes, equal, scabrid at the margin. Flowering glumes, ovate, truncate. Pale O. Ladicule acute. Agrostis canina and B. subulata; “Hand Book N.Z. Flora,” in part. Agrostis subulata, t. XX. “Buchanan N.Z. Grasses.” Hab.—South Island. Broken River basin, and other places in Canterbury. Lake district of Otago. Probably not uncommon in mountain districts in the South Island, but easily overlooked. In the “Hand Book of the N. Z. Flora,” this species is confused with Agrostis subulata. Mr. Buchanan has fallen into the same error in his “Indigenous Grasses of New Zealand,” where he figures the present plant as Agrostis canina, L. B. subulata, and unaccountably identifies it with the Agrostis subulata of “Hooker's Flora Antartica,” t. LIII., a much larger grass with erect panicles. This species is probably common in the South Island, although I have only collected it in the districts mentioned. So far as I am aware it has not been observed in the North Island. Agrostis subulata, Hook, f. “Fl. Antartica,” t. LIII., differs from our plant in the erect keeled leaves, which are narrow and slightly keeled, never filiform; the panicle is much larger, erect, never recurved, and although hidden amongst the leaves at first, yet when fully matured it slightly exceeds them in length.

Art. LI.—Description of a new species of Thysanothecium collected by Mr. Buchanan during his recent expedition to the Southern Alps. By Charles Knight, F.R.C.S., F.L.S. [Read before the Wellington Philosophical Society, 12th February, 1881.] Plate XVII. Among Mr. Buchanan's plants, lately collected in the Southern Alps, there is a remarkable Lichen gathered on Mount Aspiring Range at an elevation