406

OUTLINES OF BRITISH FUNGOLOGY.

Order 28. ONYGENEI.

Peridium formed of closely-interwoven threads. Sporidiaat length forming a compact, dusty mass.

319. ONYGENA, P.

Parasitic on animal substances. Peridium stipitate or ses-sile, paper-like, at length splitting. Asci delicate. Sporidiaat length forming a dusty mass.

1. equina, P.; Grew. t. 343. On hoofs, horns, etc.

2. piligeua, Fr. (no. 219). On decaying flannel, etc.

3. apus, B. and Br. (no. 582). On bones.

Fam. VI.—physomycetes.

Threads free, or only slightly felted, bearing vesicles whichcontain indefinite sporidia.

Order 29. ANTEYNAItlEP.

Threads black, more or less felted, moniliform and equal inthe same felt, bearing here and there irregular sporangia.

320. ANTENNARIA, Lk.

Threads felted, black, articulated, often moniliform. Wallsof sporangia mostly cellular. Spores chained together, im-mersed in gelatinous pulp.

1. semiovata, B. and Br. (no. 784, with a Jiff.). On Filix-mas.

321. ZASMIDIUM, Fr.

Sporangium thin, carbonaceous, but brittle, growing on aseptate, byssoid, equal mycelium. Mouth subumbilicate.Spores simple.