Comprehensive Description
provided by North American Flora
Sphacelotheca culmiperda (Schroet.) Clinton; Zundel, Mycologia 22: 143 1930. Ustilago culmiperda Schroet.; P. Henn. Hedwigia 35: 212. 1896.
Sori in the inflorescence, entirely aborting it and so appearing as if on the stem, at first enclosed in the leaf-sheaths but finally more or less exposed, showing as linear bodies 2-5 cm. in length, protected by a prominent light-colored false-membrane which gradually wears away revealing a black dusty spore-mass that becomes dissipated and leaves behind only a prominent columella of plant-tissues; sterile cells of membrane cohering rather permanently but upon pressure separating somewhat into threads, cubic to more elongate and often somewhat rounded at the ends, eventually semigelatinized, smaller than the spores; spores dark-reddish-brown, subopaque, chiefly subspheric to spheric, regular though often cupped on one side, and so somewhat flattened-elliptic in side view, with apparently smooth wall (about 1 m thick) but under an immersion-lens minutely granularverruculate, chieflj15-18 /i or rarely 14—21 ^i in diameter.
On Poaceae:
Andropogon bicornis. Vera Cruz.
TypE locality: Joinville, Santa Catharina, Brazil.
DiSTRiBUTIo.v; Vera Cruz; also in Brazil.
- bibliographic citation
- George Lorenzo Ingram Zundel, John Hendley Barnhart. 1939. (USTILAGINALES); ADDITIONS AND CORRECTIONS, HOST-INDEX. North American flora. vol 7(14). New York Botanical Garden, New York, NY
