Genus Phaulomyces Thaxt.

MB#3983

Memoirs of the American Academy of Arts and Sciences 16: 259 (Thaxter 1931). –

Type species: P. corylophodis Thaxt.

Adelomyces Thaxt., Memoirs of the American Academy of Arts and Sciences 16: 306 (Thaxter 1931) [MB#79]

Brief description

Probably all species are monoecious. Lower receptacle two-celled. Antheridia sessile or subsessile, on the basal cell of the primary appendage (Fig. 11E, an); proliferating into branches in older thalli.

Remarks

The genus consists of 14 species, of which eight in Europe, two in Denmark. The most recently described species are P. mediterraneus (Santamaria & Rossi 1999), and P. ptilii (Majewski 1999) . In this genus we find some of the smallest species of Laboulbeniales, with thalli not reaching 50 µm of length, like P. perparvus Santam. (Santamaria 1992a) .

Key to the Danish species

1. Third cell of the receptacle slightly flattened to isodiametric. Appendage ramified with rather long branches; up to 250 µm long. Perithecium bent towards the appendage. On Col. Ciidae ........................................................................................... P. octotemni (T.Majewski) I.I.Tav.

– Third cell of the receptacle elongate, about twice longer than broad. Appendage unbranched; up to 180 µm long. Perithecium straight, or if bent, pointing towards the opposite direction of the appendage. On Col Staphylinidae Euaesthetinae ................................. P. euaestheti (Thaxt.) I.I.Tav.