Hypoxylon lenormandii

A tropical fungus infecting a wide variety of angiosperms.

Conidiophores Nodulisporium-like, hyaline or with faint ochraceous internal pigment, slightly verrucose-walled, 3-4 µm wide.

Conidia subglobose to ovoid, hyaline, thin-walled, virtually without internal content (homogeneous).

Asci cylindrical, 8-spored, uniseriate, up to 150 µm long and 6-8 µm wide, with all spores concentrated in the upper half of the ascus, with an amyloid reaction of their minute apical apparatus in Melzer's reagent.

Ascospores ellipsoidal, noticeably flattened on one side, dark brown under the microscope, with a dehiscent perispore and a sigmoid germ slit extending almost the entire spore length.

Herbarium material available: JTP2039/24, 2531/25, and 2533/25.