. Bulletin of the British Museum (Natural History) Botany. . 10um Dendrodochium subeffusum (K—isotype). A, Conidiogenous cells. B, Conidia. Colonies spreading, ± superficial, white to very pale orange, arising in dying areas of the host thalli; mycelium partly superficial and partly penetrating the upper layers of the host, hyphae flexuose, thin-walled, hyaline, mainly 2-5-4 urn wide. Conidiophores macronematous, forming translucent, applanate, irregular, gelatinized sporodochia mainly 300-500 um across and pale orange, compacted, individually hyaline, branched, irregularly subverticillate wit


. Bulletin of the British Museum (Natural History) Botany. . 10um Dendrodochium subeffusum (K—isotype). A, Conidiogenous cells. B, Conidia. Colonies spreading, ± superficial, white to very pale orange, arising in dying areas of the host thalli; mycelium partly superficial and partly penetrating the upper layers of the host, hyphae flexuose, thin-walled, hyaline, mainly 2-5-4 urn wide. Conidiophores macronematous, forming translucent, applanate, irregular, gelatinized sporodochia mainly 300-500 um across and pale orange, compacted, individually hyaline, branched, irregularly subverticillate with only 2-3 phialides at each node. Conidiogenous cells terminating at about the same level, phialidic, discrete, terminal, subcylindrical to subulate, hyaline, thin-walled, generally distinctly roughened below, 20-30(-35) um tall, mainly 3^-5 um wide at the base but tapering to 2-3 um wide at the tip. Conidia abundantly produced, solitary, slimy in mass, broadly ellipsoid, rounded at the apex but with a peg-like narrowly truncated base, simple, hyaline singly but pale orange in mass, ± smooth-walled but occasionally rather uneven in outline, (6-)7-9(-9-5)x 4-5-6 um. Host: Physcia millegrana Degel., thallus; also spreading on to adjacent thalli of Candelaria concolor (Dicks.) Stein in the type collection. Distribution: Known only from the type Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)


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