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Literature:
 
Page number:379 
Remarks (public):This species is remarkable in possessing tyrosinase in the absence of laccase (Boidin 1951a), and also, among the species tested in this study, its strong peroxidase reactions. It is readily identified on MEA or especially MYA by the development of patches of deep blue pigmentation on the aerial hyphae. The earliest generic name for the species is Terana Adanson (1763), previously devalidated by the later starting point rules affecting fungi, but recently revalidated when the ICBN moved the starting point back to 1753 for all fungi (Voss 1983). Jülich (1983) accepted the replacement of Pulcherricium Parmasto (1968) by Terana, but Hawksworth (1984) argued for the conservation of Pulcherricium because "it is one of the few members of the Corticiaceae well known to amateur collectors..." Parkinson (1987) pointed out that since Adanson explicitly rejected Linnaean binomial nomenclature, new names coined by him must be rejected as invalid, and the conservation of Pulcherricium was therefore unnecessary (Parkinson 1988).
This species has been beautifully illustrated by Breitenbach and Kränzlin (1986), and by Binyamini (1984; a second photograph of Laeticorticium polygonioides is undoubtedly also this species).
 
Description type:Culture description 
Description:Pulcherricium caeruleum (Schrad.: Fr.) Parmasto
References: Boidin (1958a), Stalpers (1978), Hallenberg (1987b, includes photograph)
Species code: (1-)2bc.3c.7.(9).(21).32.36-(37).38-(40).(42-)43(-44). (53).54.59.63.
Growth on MEA: Fast, plates covered in 2 wk, to moderate, plates covered in 4 wk. Radius at 2 wk averaging 61 mm (> 47 mm), at 6 wk averaging 165 mm. Margins even, appressed, wispy (long), hyaline. Aerial mycelium present, near margin only at 2 wk; mat sparse, low and thin, silky to downy to woolly, at 6 wk becoming deeply woolly to floccose to plumose, azonate, hyaline to white or cream (4A2), with blue patches by 6 wk, usually on the sides of the Petri dish. Reverse at 2 wk unchanged to faintly bleached to bleached (50%), at 6 wk unchanged to faintly bleached. Not fruiting within 6 wk. Odour nil to 2+, "other" (nil or nondescript, or of vegetable, malty yeasts, or smoky raisins).
Microscopic characters: Marginal hyphae tubular, straight, thinwalled, 1.9-6 µm broad, with simple clamp connections, sparsely branched. Branching angle various; branches not associated with septa or clamp connections. Cultures monomitic, generative hyphae in older mat remaining thin-walled, predominantly tubular, becoming encrusted with blue pigment, and with coloured contents, inamyloid, 0.9-5.4 µm broad, with simple clamp connections, occasionally with swollen branching points. Crystals present among aerial hyphae and in agar, tetrahedral to tabular, occurring singly. Submerged hyphae similar to aerial, but never coloured, inamyloid, 1-4.3 µm broad, with simple clamp connections, thin-walled. Conidia lacking.
Growth on PDA: Fast, plates covered in 2 wk, to moderate, plates covered in 4 wk. Diameter at 2 wk averaging 68.8 mm (> 49 mm), at 6 wk averaging 186 mm. Margins even, appressed, wispy (long), hyaline. Aerial mycelium present. Mat at 2 wk moderate, low and thin to deep, cottony to woolly, with downy margins, at 6 wk densely and deeply woolly to floccose, azonate. Mat hyaline to white, to cream at 6 wk (4A1½-5B3). Reverse at 2 wk unchanged to coloured, pale yellow (34A2, 4AB2½), at 6 wk coloured, pale yellow (4A3-5B3). Not fruiting within 6 wk. Odour + to 3+, "fragrant" to "other" (fruity, pineapple with cantaloupe, spicy fruit, mouldy melon, yeasty, new car, old shoes).
Growth on ML: Fast, plates covered in 2 wk, to moderate, plates covered in 4 wk. Diameter at 2 wk averaging 88 mm (> 72 mm), at 6 wk averaging 253 mm. Margins even, appressed, wispy (long), hyaline. Aerial mycelium present. Mat sparse to moderate, low and thin to average to moderately deep, silky to farinose to downy to cottony to woolly, at 6 wk woolly to floccose, azonate. Mat hyaline to white, to cream at 6 wk (4A1-5AB3). Reverse at 2 wk unchanged to coloured, pale yellow (3A2-4½A2), at 6 wk, pale yellow (4A3, 5B3). Not fruiting within 6 wk. Odour 2+ to 4+, "fragrant" to "other" (new car with fruit, odd fruit, citron melon, melon, cantaloupe, yeasts, carrots).
Growing on angiosperms (including Acer, Corylus). Heterothallic, bipolar (Tassinari 1956), nuclear behaviour heterocytic, with some plurinucleate terminal cells in submerged secondary mycelium (Boidin 1958a).
Isolates studied: T-616, T-628.
 
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