 |
| Pseudosperma brunneopilosum Aïgnon & Fan, in Aïgnon, Fan et Matheny, 2024. |
Abstract
A new species of Pseudosperma is described based on collections recently made in Benin in West Africa. Pseudosperma brunneopilosum sp. nov. occurs in forests dominated by ectomycorrhizal Fabaceae Isoberlinia and Phyllanthaceae Uapaca trees. Phylogenetic analysis of combined ITS-LSU-RPB2-TEF1 gene regions shows that P. brunneopilosum is unrelated and distinct from several recently described species of Pseudosperma also from West Africa. Complete descriptions and illustrations, including photographs and line drawings are presented.
Keywords: Benin, ectomycorrhizal fungi, molecular systematics, phylogeny, taxonomy
 |
| (a–f) = Basidiomes of Pseudosperma brunneopilosum (a = HLA0735 holotype, b = HLA0731 c = HLA0910 and d = HLA0911, e = HLA0763, f = HLA0780). Bar = 1 cm. Photos by: H. L. Aïgnon. |
 |
| Microscopic features of Pseudosperma brunneopilosum (HLA0735, holotype). (a–b) Basidiospores, (c–g) basidia, (h–k) cheilocystidia in clusters, (l) pileipellis, (m) cross section of lamellae, (n) pileipellis hyphae, (o) oleiferous hyphae, (p) stipe trama hyphae, (q) caulocystida. Scale bars: a–q = 10 μm. |
Pseudosperma brunneopilosum Aïgnon & Fan sp. nov.
Diagnosis: A species distinguished from other tropical African Pseudosperma by the combination of the small basidiomata, brownish hairy and rimose pileus, lighter colored stipe, and isolated phylogenetic position.
Etymology: brunneopilosum, in reference to brownish densely fibrillose pileus.
Hyppolite L. Aïgnon, Yu-Guang Fan and P. Brandon Matheny. 2024. Pseudosperma brunneopilosum, A New Species of Inocybaceae from West Africa. Nordic Journal of Botany. DOI: doi.org/10.1111/njb.04470
