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

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<strong>Cladosporium</strong> herbarum species complex<br />

Fig. 24. <strong>Cladosporium</strong> macrocarpum (<strong>CBS</strong> 299.67). A. Survey of a conidiophore that forms several secondary ramoconidia <strong>and</strong> conidia. Several aerial hyphae are also visible<br />

in this picture. B. Conidiophore with broadly ellipsoid secondary ramoconidia <strong>and</strong> obovoid conidia. Note the different scars on the conidiophore at the lower left. C. Ellipsoid<br />

or obovoid conidia with notable areas of scar formation. <strong>The</strong> ornamentation is relatively widely distributed over the body of the cell <strong>and</strong> <strong>similar</strong> to C. variabile. D. Detail of<br />

a conidiophore (see B) with scars. Note the relatively shallow rings of the scars. E. Details of conidia <strong>and</strong> a secondary ramoconidium. F. Conidiophore with a secondary<br />

ramoconidium <strong>and</strong> conidia. Note the hila on several spores <strong>and</strong> the lack of ornamentation at the site where spores are formed. Scale bars: A–C, = 10 µm, D, F = 5 µm, E = 2<br />

µm.<br />

smooth to minutely verruculose or verruculose, walls somewhat<br />

thickened, sometimes even two-layered. Conidiogenous cells<br />

integrated, terminal or intercalary, cylindrical, nodulose with lateral<br />

shoulders or nodose with swellings round about the stalk, with<br />

conidiogenous loci confined to swellings, 12–37 µm long, with up to<br />

12 loci per cell, usually with up to six, loci conspicuous, protuberant,<br />

(1–)1.5–2 µm diam, somewhat thickened <strong>and</strong> darkened-refractive.<br />

Micronematous conidiophores almost indistinguishable from<br />

hyphae, straight, narrowly filiform, non-nodulose or with a single or<br />

few swellings, mostly with small head-like swollen apices, usually<br />

www.studiesinmycology.org<br />

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