=Ustilago urceolorum=, Tul. SEDGE SMUT; produced on the glumes and utricles; epidermis soon bursting; spores in a compact mass, afterwards breaking up, globose, rather large, granulated.—Surrounding the seed of various _Carices_; as, _Carex prœcox_, _stellulata_, _recurva_, and _pseudo-cyperus_. Autumn. Not uncommon. (Plate VI. figs. 109-111.)
=Ustilago longissima=, Tul. ELONGATED SMUT; produced on the leaves in linear, long, parallel, dirty-olive patches; epidermis bursting longitudinally; spores globose, breaking up into minute granules, olive-black.—On leaves of _Poa aquatica_ and _fluitans_. Summer. Common. (Plate V. figs. 105-107.)
=Ustilago olivacea=, Tul. OLIVE SMUT; infesting the enlarged receptacle; epidermis soon bursting; spores olive-green, powdery, minute, mixed with filaments.—On _Carex riparia_. Not common. (Plate VI. figs. 126, 127.)
=Ustilago hypodytes=, Fr. GRASS-CULM SMUT; produced on the culms beneath the sheaths, afterwards exposed; spores minute, subglobose, brownish-black.—On the culms of various Grasses. Summer. Sometimes not uncommon. (Plate V. figs. 100, 101.)
=Ustilago Maydis=, Corda. MAIZE SMUT; produced on the stems, germens, &c.; epidermis at length bursting; spores spherical, minute, brownish-black, surface covered with echinulate warts.—On stems, &c., of _Zea mays_. (Plate V. fig. 108.)
=Ustilago Montagnei=, Tul. BEAKSEDGE SMUT; produced on the seeds; epidermis bursting; spores slightly angular, small, dark-coloured, intermixed sparingly with fragile filaments.—On seeds of _Rhyncospora alba_. Not common. (Plate V. figs. 96, 97.)
=Ustilago typhoides=, B. and Br. REED SMUT; prodded on the stems of reeds, forming thick bullate patches several inches long, occupying whole internodes, covered by their sheath; spores globose, rather large.—On stems of _Arundo phragmitis_. Autumn. Not uncommon. (Plate VI. figs. 128, 129.)
=Ustilago Salveii=, B. and Br. COCKSFOOT SMUT; produced on the leaves, forming elongated parallel sori on the upper surface; spores obovate, rather large, rough with minute granules.—On leaves of _Dactylis glomerata_ and other Grasses. Not common. (Plate VI. figs. 117-119.)
=Ustilago grammica=, B. and Br. BANDED SMUT; forming little transverse bands consisting of short parallel black lines, 1/12 of an inch or more in length; spores globose, very minute.—On stems of _Aira aquatica_ and _A. cæspitosa_. Uncommon. (Plate VI. figs. 120-122.)