Uromyces Primulæ, Lév. Primrose Rust; spots yellowish, sori subrotund and oval, aggregate, on the under surface; epidermis at length bursting; spores ovoid, brown.—On Primroses.
Uromyces intrusa, Lév. Lady’s-mantle Rust; on the under surface, scattered, or partially aggregate, reddish-brown, rounded, somewhat prominent, minute, very unequal; spores roundish or oval.—On Alchemilla vulgaris.
Uromyces Iridis, Lév. Iris Rust; on the under, rarely on the upper, surface; spots yellow, sori small, pale red-brown, oblong and linear, scattered or aggregate, scarcely convex; epidermis bullate, rarely bursting longitudinally; spores globose or broadly elliptic, pale brown, pellucid.—On Iris fœtidissima. August to September. Not uncommon.
Polycystis, Lév.
Spores irregular, consisting of several cells.—Berk. Outl., p. 334.
Polycystis Colchici, Tul. Meadow-saffron Smut; sori elongated, bursting irregularly; spores smooth or slightly papillose.—On leaves of Meadow-Saffron. Not common.
Polycystis Violæ, B. and Br. Violet Smut; sori scattered, elongated, on both surfaces of the leaves and petioles; spores more or less globose, consisting of several cells surrounded by a common irregular crust.—On leaves and petioles of Violets. August. Common. ([Plate IX.] figs. 185, 186.)
Polycystis pompholygodes, Lév. Buttercup Smut; sori varied in form, bullate, epidermis inflated, at first entire, then bursting irregularly, its remains surrounding the clusters; spores copious, subglobose, black, opaque or pellucid.—On Ranunculus repens and other Ranunculaceæ. Summer. Very common. ([Plate IX.] figs. 183, 184.)
Polycystis parallela, B. and Br. Rye Smut; sori very long, linear, epidermis bursting longitudinally, spores globose, with several projecting nodules, dark brown.—On culms and sheaths of Rye and on the leaves of Carices. ([Plate IX.] figs. 187, 188.)