The genus Cladosporium and similar dematiaceous ... - CBS - KNAW

Schubert et al.
Fig. 23. Cladosporium macrocarpum (CBS 299.67) and its teleomorph Davidiella macrocarpa (CPC 12755). A–C. Macronematous conidiophores and conidia. D–G.
Micronematous conidiophores. H. Microcyclic conidiogenesis. I. Ascomata formed on nettle stems in culture. J. Periphyses. K, M–N. Asci. L. Ostiole. Scale bars: A, D–H, J–N
= 10 µm, I = 200 µm.
rarely observed, thick-walled, straight to slightly curved, fusoidellipsoidal
with obtuse ends, widest in the middle of the apical
cell, medianly 1-septate, not to slightly constricted at the septum,
tapering towards both ends, but more prominently towards lower
end, (22–)23–26(–28) × (6–)6.5–7(–8) µm; mucoid sheath rarely
observed, mostly absent.
Mycelium unbranched or loosely branched, 1–4.5(–5) µm wide,
septate, sometimes slightly constricted at septa, hyaline to pale
brown, smooth to minutely verruculose, walls unthickened or slightly
thickened. Conidiophores micronematous and macronematous,
solitary, arising terminally from plagiotropous hyphae or terminally
from ascending hyphae. Macronematous conidiophores erect,
straight to somewhat flexuous, cylindrical-oblong, nodulose to
nodose, with a single apical or usually several swellings either
somewhat distinct from each other or often in short succession giving
conidiophores a knotty appearance, swellings sometimes laterally
elongated or formed at the top of a branch-like outgrowth below
the apical swelling, sometimes distinctly geniculate, unbranched,
sometimes branched, 12–260 × (3–)4–6 µm, swellings 5–10 µm
wide, pluriseptate, sometimes slightly constricted at septa, pale to
medium brown or olivaceous-brown, somewhat paler at apices,
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