Dussiella tuberiformis (Berk. & Ravenel) Pat. ex Sacc. 1891

Echinodothis tuberiformis (Berk. & Rav.) Atk. Bull. Torrey
Club 21 : 224. 1894.
Hypocrea tuberiformis Berk. & Rav.; Berk. Grevillea4 : 13. 1875. Hypocrella tuberiformis Atk. Bot. Gaz. 16: 284. 1891.
Stromata subglobose, 1 cm. or more in diameter, entire, lobed, or divided, seated upon the reed or upon the leaf-sheath and fastened by a whitish mycelium consisting of radiatingthreads which are sometimes tinged yellowish-brown ; substance leathery or corky, consisting of three layers, an inner layer white to pinkish, an intermediate layer light-ochraceous and an outer layer cinnamon ; stroma externally dark-brownish becoming black ; conidiophores needle-shaped ; conidia ovoid to fusoid, 3-4 X 7-10 /^ ; perithecia entirely superficial in small clusters or evenly distributed over the exposed surface of the stroma, subconic in form, giving the whole stroma a spiny appearance, clothed except the apex with a dense covering of minute threads which are at first whitish becoming cinnamon -colored, the naked apex becoming black, about 0.3X1 mm.; asci cylindric, with a swelling at the apex, very large, 475-750 X 14-20// ; spores nearly as long as the ascus, hyaline or slightly yellowish, many-septate, the joints 15 X4-5^.
On stems of Arundinaria.
Type locality : South Carolina.
Distribution ; South Carolina to Alabama.