Comprehensive Description
provided by North American Flora
Thyronectroidea chrysogramma (Ellis & Ev.) Seaver,
Mycologia 1 : 206. 1909.
Thyronectria chrysogramma EHis & Ev. Proc. Acad. Phila. 1890 : 245. 1890. Matiirolia chrysogramma Sacc. Syll. Fung. 9 : 993. 1891.
Perithecia springing from below the epidermis in dense, cespitose clusters of 3-6 perithecia each ; individual perithecia ovoid, 0.25-0.5 mm. in diameter, clothed with a greenishyellow coat with the ostiolum bare and black ; asci clavate-cylindric, 150-175 X 14-18 ^, 8-spored ; spores 2-seriate, ellipsoid, mostly a little curved, 7-10-septate, with very faint, interrupted, longitudinal septa, at first hyaline, becoming quite dark -brown, 25-35 X 10-12 /i ; paraphyses abundant.
On bark of UVmus am-ericana L. Type locality: Manhattan, Kansas. Distribution : Ontario and New York to Kansas.
- 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
