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SUMMARY
| 1. | The infections produced by nine species of Entyloma were examined for the presence of conidia. | ||||
| 2. | Some species (E. Menispermi, E. australe, E. Linariae, E. Meliloti, and E. Ranunculi) produced two distinct types of conidia, the one sickle-shaped and the other filiform; other species (E. Nymphaeae, and E. Lobeliae) produced conidia of the one type only. In two species (E. Compositarum, and E. polysporum) conidia were apparently absent. | ||||
| 3. | Pure cultures of E. Menispermi, E. Linariae, E. Lobeliae, E. polysporum, and E. Nymphaeae were made by suspending pieces of infected tissue above Petri dishes containing nutrient agar. All of these cultures produced sickle-shaped conidia which were violently discharged from their sterigmata with the accompaniment of drop-excretion. The cultures of E. Linariae, E. polysporum, and E. Nymphaeae produced also filiform conidia. These conidia were easily detached from the hyphae on which they were borne but were not discharged. | ||||
| 4. | The sickle-shaped conidia of E. Menispermi, E. Lobeliae, and E. Linariae are for the most part uninucleate. | ||||