Chaetomium bainieri Munk 1957

Chaetomium setosum Wint. Hedwigia 26 : 16. 1887
Chaetomium. indicum Zopf, Nova Acta Acad. I,eop. -Carol. 42 : 279. 1881. Not C. indicum Corda, 1840.
Perithecia scattered or gregarious, broadly ellipsoid, 180-200X145-160//, clothed on all sides with hairs ; basal rhizoids long, 3 ^ wide, slender, flexuous, dark-brown, remotely septate ; lateral hairs like basal but less numerous ; apical hairs of two kinds, branched and simple ; simple hairs lanceolate, black and rough at the base, gradually becoming paler and smoother, 6(i thick at the base, tapering toward the end, extending 400-500/^ above the perithecium ; branched hairs dark-brown, deeply incrusted, like the lanceolate hairs at the base, simple for 175-185 fj-, then branching dichotomously several times, more or less regularly, becoming gradually more slender, paler and less rough, in maturity forming a tangled, spherical mass, often 600^ in diameter; in the young condition the branched hairs are overtopped by the lanceolate bristles, but at maturity the latter are often almost entirely concealed by the former; spores small, ellipsoid, 5-6X3-4.5/^, pale olivaceousbrown .
On dead Zea Mays I,., decaying cypress pickets, cotton plug, and branches of Berheris.
Type locality : Patagonia. , , ^ , . -, -r^
Distribution : I,ouisiana to New York ; also m South America and Europe.