Nectria serpens sp. nov. and its hyphomycetous anamorph Xenocylindrocladium gen. nov

• Published in: Mycological research Vol. 101; no. 7; pp. 786 - 790
• Main Authors: HENNEBERT, GRÉGOIRE L., CROUS, PEDRO W.
• Format: Journal Article
• Language: English
• Published: Oxford Cambridge University Press 01-07-1997; Elsevier Ltd; Elsevier
• Subjects: Biological and medical sciences; Fundamental and applied biological sciences. Psychology; Fungi; Plant cytology, morphology, systematics, chorology and evolution; Thallophyta; South America; Ecuador; America; Fungi; Geographic distribution; Taxonomy; Tropical zone; Morphology; Diagnosis (taxonomy); New species; Fungi Imperfecti; Thallophyta
• ISSN: 0953-7562; 1469-8102
• DOI: 10.1017/S0953756296003334

A homothallic species of Nectria producing a
Cylindrocladium-like anamorph was collected from bark of a fallen
tree in the
Amazonian forest in Ecuador. The anamorph, which is placed in a new genus,
Xenocylindrocladium, is characterized by forming
straight, cylindrical, 1-septate conidia borne on penicillate conidiophores
with coiled, avesiculate stipe extensions. The teleomorph,
which is best accommodated in Nectria, is distinct in forming
yellow-orange perithecia with red ostiolar regions, ellipsoidal, smooth,
hyaline, 1-septate ascospores, and long-stalked, cylindrical asci with
apical discharge mechanisms. Both the teleomorph and anamorph
states are newly described as Nectria serpens and
Xenocylindrocladium serpens.