The status of the name is uncertain.

Sphaeria constricta Fr.: Fr., Elench. Fung. II, p. 70. 1828.

º Nummularia constricta (Fr.: Fr.) Sacc., Syll. Fung. I, p. 401. 1882.

LOCALITY UNKNOWN: ex Herb. Guépin, J.P., wood (UPS 59213, TYPE of Sphaeria constricta); four microscope slides from Nannfeldt, J.A. (BPI-CLS, TYPES of Sphaeria constricta).

A nomen confusum. Four slides of Shear clearly show that at least three fungi are involved. Two slides contain xylariaceous ascospores; one has ascospores that are ellipsoid-inequilateral, dark brown, 9-12 x 5-6 mm, with a straight, spore-length germ slit on the convex side; the other has ascospores nearly equilateral, dark brown, 15-17 x 9-10 mm, with a straight, spore-length germ slit. The former is probably a Hypoxylon, whereas the latter is a Biscogniauxia. The other two slides contain two-celled brown spores. The specimen of Sphaeria constricta from UPS corresponds to the latter two slides of Shear, and is not xylariaceous.


Jack D. Rogers
Yu-Ming Ju
Michael J. Adams