Comprehensive Description
provided by North American Flora
Thyronectria denigrata (Wint.) Seaver,
Mycologia 1 : 204. 1909.
Pleonectria denigrata Wint. Bull. Torrey Club 10 : 49. 1883.
Perithecia erumpent in very dense, large, rounded clusters 2-5 mm. in diameter, seated on a brownish stroma; individual perithecia nearly globose, minutely roughened, darkbrownish, with a prominent, black, shining ostiolum, finally becoming black, 350-450 /^ in diameter; asci cylindric, 50-70X8-10//; spores 1-seriate or crowded, shortellipsoid, hyaline or slightly yellowish, 3-5-septate, becoming muriform, often a little constricted, 10-15X7-9//.
On branches of Gleditsia triacanthos L.
Type locality : L,exington, Kentucky.
Distribution: Delaware to Kansas and Kentucky.
- bibliographic citation
- Fred Jay Seaver, Helen Letitia Palliser, David Griffiths. 1910. HYPOCREALES, FIMETARIALES. North American flora. vol 3(1). New York Botanical Garden, New York, NY
