Camptomyces Thaxt.

Santamaria, Sergi & Pedersen, Jan, 2021, Laboulbeniomycetes (Fungi, Ascomycota) of Denmark, European Journal of Taxonomy 781, pp. 1-425 : 309

Genus Camptomyces Thaxt.

MB#780

Proceedings of the American Academy of Arts and Sciences 29: 100 ( Thaxter 1894). –

Type species: C. melanopus Thaxt.

Brief description

Monoecious. Receptacle three-celled ( Fig. 75B ). Primary appendage consisting of a flattened basal cell and a distal compound antheridium. Primary septum constricted and ± darkened. Antheridium ± conical, consisting of several regular rows of sterile cells and phialides; terminated with a pointed apex where the discharging pore is located ( Fig. 75A , arrow). Perithecium with four cells in each vertical row of outer wall cells.

Remarks

The genus consists of nine species, with only C. europaeus known in Europe. The most recently described species is C. africanus ( Rossi & Leonardi 2018) . The terminal compound antheridium in the primary appendage relates this genus with others like Haplomyces , Neohaplomyces , Euhaplomyces , Eucantharomyces , and Porophoromyces . In Camptomyces and Porophoromyces , the original spore apex opens and transforms into the spermatia discharge pore, whereas in the other genera it remains as a closed spinous process.

Figures

Fig. 75. A–B. Camptomyces europaeus W.Rossi & Cesari. Mature thalli showing discharge pore of antheridium (arrow) and cells I, II, III. – C–E. Cantharomyces aploderi Huldén. Mature thalli. C. Cells I, II, III and primary septum (a) are labelled. D. Arrow points to darkening of cell II, “*” delimits flattened cells of appendage, a diagnostic character. E. Mature thallus. – F–G. Cantharomyces denigratus Thaxt. Mature thalli showing antheridium (an) and constriction of cell VI (arrow). Scale bars: 50 µm. Photographs from slides ZMUC C-F-123063 (A–B), ZMUC C-F-124179 (C–D), ZMUC C-F-124178 (E), ZMUC C-F-123548 (F–G).