Ineris.—On new Species of New Zealand Diatoms. 857 
Epiblema grandiflorum, R. Br. 
Stem erect, 1-15 inches high, with one long narrow leaf and two short 
sheathing leaves. Flowers 8-4, pedicillate in a short raceme, dark purple, 
bracts shorter than the ovary. Sepals and petals alike, 4 inch long, narrow- 
linear, acute, finely veined. Labellum as long as the sepals. Anther erect, 
or slightly bent forward, the cells distinct, with a short recurved point. 
Brachyglottis rangiora, Buch., 0.s. 
A small branching tree, 8-12 feet high; branches, petioles, leaves below, 
and inflorescence, covered closely with white or pale buff tomentum. Leaves 
large, 6-8 inches long, ovate or oblong, irregularly sinuato-dentate along 
the margin, often tapering to an acute point, coriaceous, or stoutly membra- 
nous, young leaves generally lobulate and dentate, covered on both sides 
with soft pale buff tomentum. Panicles as large as the leaves, spreading, 
drooping, or erect, covered with appressed tomentum. Heads numerous, 
sessile, 1 inch long, involucral scales 7, in one series, linear, obovate, obtuse 
or acuminate, or pilose on top. Florets 9, of which 5 are fertile. 
This is avery distinct plant from Forster’s Brachyglottis repanda, differing 
in its smaller size, coriaceous leaves, which have generally deeper sinuations 
and more acute angles; the flower-heads are also constantly sessile. Its 
geographical distribution is also distinct, being apparently limited to the 
lands of both islands abutting on Cook Strait. The Maoris also distinguish 
the two plants by different names, the present plant being known as 
Rangiora, while the northern plant described by Forster, is called Wharangi- 
ta-whita. Both plants are poisonous to horses. 
Arr. XLIX.—On new Species of New Zealand Diatoms. By Joun Inauts. 
Plate XXII. 
Description of a new Species of Nitzchia. 
[Read before the Philosophical Institute of Canterbury, lst July, 1880.) 
Nitzchia nova-zealandia, sp. nov. 
Frustule: front view linear, narrowing at the truncated extremities, 
Opposite side of each end obliquely sloping. Valve: linear on side view 
and sigmoid, attenuated towards the extremities, and at the ends; 
one row of puncta round the margin of the valve. Puncta: there are 
twenty-four puncta or beads to 001 of an inch. 
immersion. The valves of Nitzchia nova-zealandia resemble Homaocladia 
- sigmoidea, but the latter is frondose and the frustules are sigmoidal on the 
Ihave been unable to make out any strie or keel under Beck's Jyth 
