Cheiromoniliophora
Cheiromoniliophora Tzean & J.L. Chen, Mycol. Res. 94(3): 424 (1990).
Index Fungorum number: IF 11242; Facesoffungi number: FoF xx, 2 morphological species (Species Fungorum 2022), 1 species with molecular data.
Saprobic on host. Asexual morph: Conidiophores semi-macronematous, macronematous, simple or irregularly branched, septate, rarely slightly constricted at septa, smooth or verrucose. Conidiogenous cells discrete, catenulate, proximally clavate, pyriform to obovoid, distally spherical, subspherical, blastic, smooth or occasionally verrucose, hyaline to subhyaline. A new chain of conidiogenous cells may regenerate from pre-existing conidiogenous cells. Conidia acrogenous or pleurogenous, cheiroid, in one plane, composed of 2-3 arms, arising from a more or less triangular basal cell. Arm multiseptate, slightly constriction at septa, consisting of 1-5 cells, brown or dark brown, smooth, thick-walled. Sexual morph: Unknown (Adapted from Tzean and Chen 1990).
Type species: Cheiromoniliophora elegans Tzean & J.L. Chen
Notes: Cheiromoniliophora was introduced by Tzean and Chen (1990) with C. elegans as type species. Cheiromoniliophora is characterized by semi-macronematous, macronematous conidiophores, clavate, pyriform to obovoid conidiogenous cells and acrogenous or pleurogenous, cheiroid conidia. Cheiromoniliophora resembles Pseudodictyosporium in having cheiroid conidia but differs in that the conidial length of C. elegans is shorter and the branching of the conidiophores is sparser compared to P. wauense, the type species of Pseudodictyosporium. Cheiromoniliophora also differs from Pseudodictyosporium in lacking an ovate basal cell in the conidiophore. In Cheiromoniliophora, the conidiogenous cells are of a different shape such as spherical, subspherical or monilioid and are distinct from the tubular conidiophores, while in Pseudodictyosporium, the conidiogenous cells has a solitary, terminal conidium. Cheiromoniliophora differs from other similar genera such as Cheiromyces (Damon 1950), Cheiromycella, Dicfyosporium (Ellis 1971) in having different ontogeny and conidiogenous cells. Cheiromoniliophora is currently placed in Pleosporales genera incertae sedis. Molecular markers available for Cheiromoniliophora elegans include LSU, SSU and ITS. More taxa with sequence data is needed to confirm the correct taxonomic placement of Cheiromoniliophora.
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