C. ARCYRIACEÆ
Key to the Genera of the Arcyriaceæ
| A. Peridium becoming fragmentary, but persisting; capillitium non-elastic | 1. Lachnobolus |
| B. Peridium evanescent above, persistent below; capillitium elastic | 2. Arcyria |
| C. Capillitium elastic, bearing hamate branches | 3. Heterotrichia |
1. Lachnobolus Fries.
- 1829. Lachnobolus Fries, Syst. Myc., III., p. 177.
Sporangia distinct, sessile or nearly so, globose or cylindric, often distorted, scattered or densely crowded, the peridium extremely thin, ruptured irregularly, and persistent in fragments; capillitium attached at numerous points to the sporangial wall, forming a dense net, the threads warted or spinulose, non-elastic.
Species of this genus are easily distinguished from those of the next by the peculiar fragile peridium and the inelastic capillitium.
Key to the Species of Lachnobolus
| A. Sporangia pale yellow, on fallen flowers and fruit-burs of Castanea | 1. L. globosus |
| B. Sporangia rosy or copper-colored, at length ochraceous | 2. L. occidentalis |
1. Lachnobolus globosus (Schw.) Rost.