. Bulletin of the British Museum (Natural History) Botany. . Fig. 28 Monodictys anaptychiae (HBG—isotype). A, Conidiogenous cells with attached conidia. B, Conidia. Reproduced from Hawksworth (1975o : 220). Hosts: Most commonly collected from decorticate wood in xeric situations and on which it can thrive. This fungus is often found associated with lichen thalli ( dead Parmelia cf. subaurifera Nyl. in the holotype, Lecanora expallens Ach. in Vize's exsiccatum) but appears to be a pathogen of Lecanora conizaeoides Nyl. ex Cromb.; in the latter species the fungus appears as black flecks over
. Bulletin of the British Museum (Natural History) Botany. . Fig. 28 Monodictys anaptychiae (HBG—isotype). A, Conidiogenous cells with attached conidia. B, Conidia. Reproduced from Hawksworth (1975o : 220). Hosts: Most commonly collected from decorticate wood in xeric situations and on which it can thrive. This fungus is often found associated with lichen thalli ( dead Parmelia cf. subaurifera Nyl. in the holotype, Lecanora expallens Ach. in Vize's exsiccatum) but appears to be a pathogen of Lecanora conizaeoides Nyl. ex Cromb.; in the latter species the fungus appears as black flecks over the thallus surface and apothecia and can even penetrate the hymenium to some extent. In IMI 224315 (with L. conizaeoides), the fungus also grows on the thallus of Bacidia chlorococca (Stiz.) Lett, and Buellia pulverea Coppins & P. James. Whether this species is primarily a lichenicolous fungus able to exist saprophytically on wood after the death of the host lichen, or whether it is a lignicolous saprophyte able to spread over lichens, remains uncertain. Distribution: Canada and Europe. I have seen specimens only from the British Isles but the species is probably widespread. Observations: I was in some doubt as to whether this fungus should be regarded as primarily lichenicolous or a saprophyte occasionally occuring on lichens. It is treated here and not under 'Excluded species' with some hesitation, principally because the species appears to have a predilection for Lecanora conizaeoides which it can 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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