Host: Cladium Huttoni T. Kirk. In ovaries. Herb. No. 1640. Sea-shore, Tauranga Harbour, Auckland, J. C: Neill ! G. H. C., 20 Jan., 1924. (Type.)

Cyperaceae. Sori in: ovaries, usually destroying all in the inflorescence, concealed within the gldmes, subglobose to elliptical, 1-2 mm. long, black, at first agglutinated in firm masses, becoming apparent only upon rupture of the perigynium, when pulverulent. and granular. Spore-balls of 20-50 or more spores firmly and permanently united by ridged folds, irregularly elliptical, subg1obose or angular; 48-110 X 40-70 mmm., black, : opaque. Spores irregular in size and shape, obovate, cuneate, or angular,15-25 X 14-20 mmm. ; epispore dark brown, smooth on the united faces, covered with coarse deciduous tubercules on.the:free 1-2 mmm :thick where smooth, up to 8 mmm. thick on free surface, often with lateral winged projections at margins of free surfaces.

The host is endemic and confined to the North Island, where it is apparently common on the margin of certain lakes (Cheeseman, Fl. N.Z., p.:787, 1906).
I have been unable to germinate the spores The spore-balls of this species are so firm that separation of the spores is not: possible unless the balls are first boiled in lactic-acid solution, or treated for some time with caustic-soda solution. The spores appear as if covered on their free Surfaces with large, irregular, deciduous tubercules, the crevices^- between giving. to the spores a decidedly areolate appearanceThe spores are not unlike those of T. lepidosperma McAlp., in that they are thickened and much roughened on their free surfaces, but the spore-balls are quite distinct, being much larger in size, more irregularly angular in shape,. and spores are much larger.