Botryandromyces I.I.Tav. & T.Majewski

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 113-114

Genus Botryandromyces I.I.Tav. & T.Majewski

MB#631

Mycotaxon 3 (2): 195 ( Tavares & Majewski 1976). –

Type species: B. ornatus I.I.Tav.

Brief description

Monoecious. Receptacle multicelled, consisting of a lower uniseriate row of superposed cells and an upper, usually three-celled, region where the lowermost cell supports two parallel cells ( Fig. 23C , *). Antheridia simple, sessile ( Fig. 23C , an) or clustered on short branchlets. Perithecial outer wall consisting of unequal cells arranged in two vertical rows with three cells, and two vertical rows with four cells.

Remarks

The genus consists of two species, the type and B. heteroceri , which is the only species in Europe. The genus Botryandromyces was segregated from Misgomyces because (1) the different number of perithecial wall cells for each row, four cells in all of the four rows in Misgomyces , two rows with four cells and two rows with three cells in Botryandromyces ; and (2) the structure of antheridia, simple in Botryandromyces , compound in Misgomyces . Nevertheless this latter character has been questioned by Rossi et al. (2019a) (see above under Misgomyces ).

Figures

Fig. 23. A–B. Misgomyces dyschirii Thaxt. Mature thalli from pronotum (A) and tarsi (B). – C–E. Botriandromyces heteroceri (Maire) I.I.Tav. & T.Majewski. C. Mature thallus from elytra, showing two parallel cells of upper receptacle (*) and antheridia (an). D. Filiform thallus without perithecium, filled with clusters of antheridia on one side. E. Mature thallus from tarsi. Scale bars: 50 µm. Photographs from slides ZMUC C-F-122694 (A), ZMUC C-F-123644 (B), ZMUC C-F-122594 (C–D), ZMUC C-F- 122660 (E).