Fungalpedia – Note 2866, Eucalyptostromiella
Eucalyptostromiella. W.P. Wu & Y.Z. Diao.
Citation when using this data: Wenping Wu et al. 2022 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Chaetosphaeriaceae, Chaetosphaeriales, Sordariomycetidae, Sordariomycetes, Pezizomycotina, Ascomycota, Fungi
Etymology: Refers its similarity to the genus Eucalyptostroma.
Diagnosis: Similar to Eucalyptostroma in orange-yellow sporodochial conidiomata, but morphologically differs in producing flask-shaped conidiogenous cells with a bulbous basal part and a tubular upper part, and lunate or falcate conidia with acute ends in morpho; and phylogenetically is also distinct.
Description on the natural substrate: Teleomorph: Unknown. Anamorph: Conidiomata scattered to gregarious, superficial, sporodochial, cupulate, orange-yellow; basal stroma of textura intricata. Setae absent. Conidiophores arising from a stroma, septate, branched, orange-yellow to orange-brown, forming a penicillate conidiogenous apparatus. Conidiogenous cells integrated, terminal, flask-shaped, with a bulbous basal part and a tubular upper part, in whorls, orange-brown, thin-walled, with apical percurrent proliferations through collarettes; collarettes inconspicuous, slightly flaring. Conidia aseptate, hyaline, smooth, thin-walled, falcate or lunate, acute at both ends, produced in yellow-orange and slimy mass.
Ecology/Substrate/Host: Saprobe on dead material of plant.
Geographical distribution: China.
Notes: The new genus Eucalyptostromiella is created for the sporodochial fungus on dead fruit of Quercus sp. And supported from both the phylogenetic analysis and morphological comparison with other relevant Chaetosphaeriaceous fungi, especially Eucalyptostroma. Morphologically the genus Eucalyptostromiella resembles Eucalyptostroma on producing sporodochial conidiomata with yellow-orange wet spore mass, yellow-orange conidiophores, terminal monophialidic conidiogenous cells, and hyaline, aseptate conidia (Crous et al. 2016, 2019). However, it differs from Eucalyptostroma in producing flask-shaped conidiogenous cells with a bulbous basal part and a tubular upper part, and falcate or lunate conidia with acute ends. In addition, they are phylogenetically distinct in the phylogenetic tree.
Type species: Eucalyptostromiella beijingensis W.P. Wu & Y.Z. Diao.
Other accepted species: Species Fungorum – search Eucalyptostromiella.
References
Entry by
Wenping Wu, R&D Center, Novozymes China, No. 14 Xin Xi Lu, Shangdi Zone, Haidian District, Beijing 100085, P.R. China
Published online 03 September 2026