Podisoma Sabinæ, Fr.; red-brown, tuberculiform and clavate, simple; stroma obliterated; spores obovate, uniseptate.—On living branches of Juniperus Sabinæ. April. Not uncommon.

CÆOMACEI.

Simple and free.

Without appendages,

Springing from delicate threads. Tilletia.

Produced in separate cells.—

Deeply seated, pulverulent, } Ustilago

generally nearly black }

Superficial, yellow or brown Uredo.

Not enclosed in separate cells Lecythea.