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Description type:Latin diagnosis 
Description:Aleurodiscus macrocystidiatus Lemke, sp. nov. (Fig. 14)
Fructificatio corticioidea, resupinata, effusa, linearis usque ad 3 x 0.5 cm, pruinosa vel spongioso-pulverulenta, in sectione 150-250 µm crassa; margine determinata, adnata. Superficies hymenii continua, plana, cremea vel ochraceoalutacea. Contextus monomiticus. Hyphae generantes, enodulosae, tenuiter tunicatae, (2.5-)3-4 µm diam., basales crassiores usque ad 4.5 µm diam. Catahymenium ex acanthophysibus, pseudocystidiis, et basidiis compositum. Acanthophyses cylindracei vel rectianguli, 45-50 x (3.5-)14-15 µm; regionibus aculeatis lateralibus vel terminalibus, 20-30 x 7.5-8 µm, lumine paene tunica impleta, separabilibus, aculeis 1.5-2.5(-3) x 0.8 µm ornatis. Pseudocystidia (macrocystidia) clavata, (40-)45-60(-70) x (9-)15-18(-23) µm, lutea, frequenter bulbo terminata. Basidia subclavata vel clavata, (40-)50-60(-75) x (8-)13-17 µm, matura 4 sterigmata gerentia. Basidiosporae oblongoellipsoideae, 14-16 x (6.5-)7-8(-9) µm, apicibus rotundis, basi apiculatae, tunica tenui, levi, in medio iodato immersa amyloidea.
 
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