Genus Daldinia
Key to Taxa of Daldinia
Accepted Taxa
List of Names

Yu-Ming Ju
Michael J. Adams

Stromatal shape is fairly uniform among Daldinia taxa, usually placentiform, spherical, or depressed-spherical and sessile to subsessile. The exceptions are D. clavata, D. cudonia, and D. cuprea which frequently produce stipitate, cylindrical to clavate stromata. The stromatal surface is usually smooth. A given species often has a smooth stromatal surface in some collections and a surface with inconspicuous to conspicuous perithecial mounds in others. Daldinia cuprea has very conspicuous perithecial mounds. Daldinia lloydii is peculiar in having a squamulose surface. The lighter concentric zones of stromata are of great taxonomic value in terms of their consistency and color. Two types of the lighter concentric zones are found among Daldinia species: one type is brown, grayish brown, or, less frequently, whitish, pithy to woody, persistent; the other type is whitish, gelatinous, disintegrating and, when dry, becoming loculate with locules separated by translucent membranous material. Most species yield purplish stromatal pigments in KOH, but some collections of these species lack KOH-extractable pigments. Daldinia bakeri, D. childiae, and D. mexicana yield greenish to yellowish pigments in KOH. Daldinia cuprea yields dark mouse gray pigments in KOH.

Dargan and Thind (1984) erected subgenera Eu-Daldinia Dargan & Thind and Ento-Daldinia Dargan & Thind based upon stromatal anatomy. We were unable to observe differences with sufficient consistency to assign taxa to one or to the other of these subgenera. We thus do not recognize subgenera herein. Many specimens observed by us, however, were overmature. Study of fresh specimens in their prime might cause us to reconsider the subgeneric concept of Dargan and Thind (1984).