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

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Crous et al. Fig. 9. Penidiella columbiana (type material). A. Conidiophores. B. Ramoconidia. C. Secondary conidia. Scale bar = 10 µm. U. Braun del. faintly verruculose, ramoconidia with broadly truncate base, barely narrowed, or ramoconidia more or less attenuated at the base, hila 1–2 µm wide, unthickened or almost so, but often slightly refractive or darkened-refractive. Conidia in long acropetal chains, narrowly ellipsoid-ovoid, fusiform, 5–12(–15) × (1–)1.5–3 µm, aseptate, pale olivaceous to brownish, thin-walled, smooth to faintly rough-walled, ends attenuated, hila 1–1.5 µm wide, unthickened, not darkened, at most somewhat refractive. Specimen examined: Cuba, Guantánamo, Maisí, on fallen leaves of Ficus sp., 24 Apr. 1986, M. Camino, holotype INIFAT C86/134 (HAL 2019 F, ex holotype). Notes: Cladosporium cubense was not available in culture and molecular sequence data are not available, but type material could be re-examined and revealed that this species is quite distinct from Cladosporium s. str., but agreeing with the concept of the genus Penidiella. Penidiella cubensis differs from all other species of this genus in having densely fasciculate conidiophores to synnematous conidiomata, arising from stromata. Penidiella nectandrae Crous, U. Braun & R.F. Castañeda, nom. nov. MycoBank MB504512. Fig. 11. Basionym: Cladosporium ferrugineum R.F. Castañeda, Fungi Cubenses II (La Habana): 4. 1987, homonym, non C. ferrugineum Allesch., 1895. In vivo: Colonies amphigenous, brown. Mycelium internal and external, superficial, composed of sparingly branched hyphae, septate, 1–3 µm wide, pale olivaceous-brown or brown, thinwalled (≤ 0.5 µm), smooth or almost so to distinctly verruculose, fertile cells giving rise to conidiophores somewhat swollen at the branching point, up to 5 µm diam, and somewhat darker. Stromata lacking. Conidiophores erect, straight, filiform, up to 350 µm long, 2.5–4 µm wide, pluriseptate throughout, brown, darker below and paler above, thin-walled, smooth, apex penicillate, terminal cell of the conidiophore with 2–4 short denticle-like loci giving rise to sets of conidiogenous cells or ramoconidia that then form a sequence of new sets of ramoconidia on different levels, i.e., the loose to dense, metula-like branching system is composed of conidiogenous cells and ramoconidia which are often barely distinguishable and turn into each other; conidiogenous loci terminal or subterminal, usually 1–3(–4), subdenticulate, 1–2 µm diam, conical, apically truncate, unthickened or almost so, not to somewhat darkened-refractive. Ramoconidia with truncate base, barely attenuated, or ramoconidia distinctly attenuated at the truncate base, up to 20 × 2 µm, aseptate, at the apex with 2–3(–4) subdenticulate hila, subcylindrical, 20
Phylogenetic lineages in the Capnodiales very pale olivaceous, olivaceous-brown to brown, sometimes with different shades of brown (heterochromatous), thin-walled (≤ 0.5 µm), smooth to faintly verruculose. Conidia in long acropetal chains, narrowly ellipsoid-ovoid, fusiform to cylindrical, 5–16 × (1.5–)2(–2.5) µm, aseptate, very pale olivaceous, olivaceousbrown to brown, thin-walled, smooth to very faintly rough-walled, primary conidia with rounded apex and trunacte base, somewhat attenuated, secondary conidia truncate at both ends, hila 1–1.5 µm diam, unthickened or almost so, at most slightly darkenedrefractive. Cultural characteristics: Colonies on PDA slimy, smooth, spreading; aerial mycelium absent, margins smooth, irregular; surface black with patches of cream. Colonies reaching 20 mm diam after 1 mo at 25 °C in the dark; colonies sterile on PDA, SNA and OA. Specimen examined: Cuba, Matanzas, San Miguel de los Baños, isolated from living leaves of Nectandra coriacea (Lauraceae), 24 Jan. 1987, R.F. Castañeda and G. Arnold, holotype INIFAT C87/45, culture ex-type CBS 734.87, and HAL 2018 F (ex-holotype). Notes: Although the ex-type strain of Cladosporium ferrugineum is sterile, its LSU DNA phylogeny reveals it to be unrelated to Cladosporium s. str. (see Fig. 1 in Crous et al. 2007a – this volume). Based on a re-examination of the type material it could clearly be shown that the morphology of this species fully agrees with the concept of the new genus Penidiella, which is supported by its phylogenetic position within Capnodiales. Fig. 10. Penidiella cubensis (type material). A. Swollen stromatic base of synnema. B. Conidiophores. C. Ramoconidia. D. Secondary conidia. Scale bar = 10 µm. U. Braun del. Penidiella rigidophora Crous, R.F. Castañeda & U. Braun, sp. nov. MycoBank MB504513. Figs 12–13. ≡ Cladosporium rigidophorum R.F. Castañeda, nom. nud. (herbarium name). Differt a specibus Penidiellae conidiophoris dimorphosis, hyphis et conidiis ad septa saepe distincte constrictis. Mycelium consisting of strongly branched, septate, smooth or almost so, pale olivaceous to medium brown, guttulate, commonly constricted at septa, 2–6 µm wide hyphae, swollen cells up to 8 µm wide, wall up to 1(–1.5) µm wide. Conidiophores dimorphic. Macronematous conidiophores separate, erect, subcylindrical, predominantly straight to slightly curved, terminally loosely penicillate, up to 120 µm long, and 4–5 µm wide at the base, which is neither lobed nor swollen, and lacks rhizoids, up to 10-septate, medium to dark brown, wall up to 1(–1.5) µm wide. Micronematous conidiophores erect, subcylindrical, up to 40 µm tall, 3–4 µm wide, 1–3-septate, pale to medium brown (concolorous with hyphae). Conidiogenous cells predominantly terminal, rarely intercalary, medium brown, smooth, subcylindrical, but frequently swollen at apex, 10–20 × 5–6 µm, loci (predominantly single in micronematous conidiophores, but up to 4 in macronematous conidiophores) flattipped, sub-denticulate or not, 1–1.5 µm wide, barely to slightly darkened and thickened-refractive. Conidia in branched chains, medium brown, verruculose, (appearing like small spines under light microscope), ellipsoid to cylindrical-oblong, up to 1(–1.5) µm wide, frequently constricted at septa, which turn dark with age; ramoconidia (10–)13–17(–25) × 3–4(–5) µm, 1(–3)-septate; secondary conidia (7–)8–10(–12) × 3–4(–5); hila unthickened to very slightly thickened and darkened, not refractive, (0.5–)1(–1.5) µm. Fig. 11. Penidiella nectandrae (type material). A. Conidiophores. B. Ramoconidia. C. Secondary conidia. Scale bar = 10 µm. U. Braun del. Cultural characteristics: Colonies on PDA erumpent, spreading, with lobate margins and moderate aerial mycelium; iron-grey (surface), with a greenish black margin; reverse greenish black. Colonies reaching 20 mm diam after 1 mo at 25 °C in the dark; colonies fertile. www.studiesinmycology.org 21
Page 1: Studies in Mycology 58 (2007) The g
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Page 7 and 8: CONTENTS P.W. Crous, U. Braun and J
Page 9 and 10: lectotype for the genus by Clements
Page 11: Schubert K (2005a). Morphotaxonomic
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Arzanlou et al. Fig. 10. A. Ramichl
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Arzanlou et al. Ramichloridium musa
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Arzanlou et al. Cultural characteri
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Arzanlou et al. Fig. 20. Rhinocladi
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Arzanlou et al. Fig. 22. Rhinocladi
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Arzanlou et al. Rhinocladiella mack
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Arzanlou et al. Fig. 26. Veronaea c
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Arzanlou et al. Cultural characteri
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Arzanlou et al. Fig. 30. Myrmecridi
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Arzanlou et al. Fig. 32. Radulidium
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Arzanlou et al. Fig. 34. Rhodoveron
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Arzanlou et al. even further, thoug
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available online at www.studiesinmy
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Dichocladosporium gen. nov. 10 chan
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Dichocladosporium gen. nov. Fig. 3.
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Dichocladosporium gen. nov. to intr
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Dichocladosporium gen. nov. Czechos
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Cladosporium herbarum species compl
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Cladosporium sphaerospermum species
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Crous et al. The aim of the present
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Crous et al. 10 changes Athelia epi
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Crous et al. Table 1. Isolates used
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Crous et al. Table 1. (Continued).
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Crous et al. 0.1 expected changes p
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Crous et al. Fig. 6. Cladophialopho
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Crous et al. Fig. 11. Cladophialoph
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Crous et al. Fig. 13. Cladophialoph
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Crous et al. Fig. 15. Exophiala sp.
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Crous et al. Fig. 18. Cylindrosympo
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Crous et al. Fig. 19. Fusicladium a
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Crous et al. Fig. 22. Fusicladium f
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Crous et al. Fig. 24. Fusicladium p
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Crous et al. Fusicladium rhodense C
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Crous et al. Excluded taxa Polyscyt
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Crous et al. the conidial tips are
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Cladophialophora carrionii complex
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Hormoconis resinae and morphologica
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Fig. 6 Hormoconis resinae and morph
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Cladophialophora, 52 k , 54 k -55,
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Fusicladium phillyreae, 189 c , 191
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Ramichloridium epichloës, 60, 89 P
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Trimmatostroma salicis, 3 t , 5, 6
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The genus Cladosporium and similar dematiaceous ... - CBS - KNAW

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