Abstract
The present new genus is closely related to Hypocreopsis Karsten, represented by H. lichenoides (Tode) Karsten and H. rhododendri Thaxter. Both genera have Nectria-type, 1-septate and hyaline ascospores and Hypocrea-type (Homalocrea-type), thin and effuse or pulvinate stromata. However, Protocreopsis can be separated from Hypocreopsis by its primitive stromata, which might be called subicula. Hypocreopsis, as delimited by Thaxter (1922), has a radiately lobed, orbiculate stroma, and this type of stroma can be considered to be a peculiarly advanced type. Hypocreopsis rhododendri Thaxter is illustrated in Fig. 3, for a comparison of the characteristics of Protocreopsis and Hypocreopsis.
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