Our specimens were identified based on Singer's (1949) description, who reported the following features: robust basidiomata with dark colored pileus, basidiospores
size (4.3-8 x 3.7-5 [mu]m), absence of pleuro- and cheilocystidia, presence of versiform pseudoparaphyses and pileipellis a cutis of incrusted brown pigments.
The collection of Hebeloma theobrominum collected from Pakistan is characterized macroscopically by the reddish brown basidiomata and microscopically, by the elliptical basidiospores
, which are highly dextrinoid in Melzer's reagent.
CCA and sodium pentachlorophenate inhibition of basidiospore
germination of decay fungi: Contact agar method.
Hyphoderma clavatum is characterized by being resupinate, adnate, effused, smooth yellowish white to pale yellow basidiocarp, narrowly clavate to subcylindrical, capitate, and apically encrusted cystidia with ellipsoid basidiospores
. Wu  reported it from Taiwan.
When looking at the types of spores detected from HEAL samples, mold found indoors reflected what was detected outdoors; molds associated with water damage (e.g., Stachybotrys, Chaetomium, Ulocladium) were uncommon (3-18% of homes) and the most common molds were leaf surface/outdoor molds (e.g., Ascospores, Cladosporium, Basidiospores
in 92-98% of homes).
Non-Viable Fungi (Spore) Air Sampling Results Spore Identifier Plenum Concentration (Spores/[m.sup.3]) Sample 1 Duplicate Sample algae - - Alternaria - - ascospores 75 225 basidiospores
633 633 Botrytis - - Cercospora - - Cladosporium 83 142 clear brown - - Curvularia - - Curvularia-Xike - - Dechslera/Bipolaris group - - Epicoccum - - Helicosporium / Helicomyces - - hyphal elements 8 - Monochaetia - - Nigrospora - - Oidium - - Penicillium/Aspergillus 150 83 group Peronospora - - smuts, Periconia, - - myxomycetes Torula - - unknown - - Total 949 1083 Table 6.
zapotecorum are closely related species, separated only by the size of the basidiospores
and basidiomata, in addition to the absence or presence of pseudocystidia.
3.5-4.2 X 1.8-2.2 pm, ellipsoid, hyaline, smooth and thin-walled.
seedlings with production of easily airborne sexual spores (basidiospores
) thus supporting the universal dispersal hypothesis, which suggests that most of the free-living microbial eukaryotes are likely to be globally distributed (34).
Using electron-scanning microscopy, Wu (2000) describes the way four basidiospores
in Shiitake are formed on a basidium.
However, to critically distinguish the species and varieties in this group, it was essential to characterize several microscopic features, such as basidiospores
, the various types of cells in the hymenium (the spore-bearing layer lining both sides of the gills), and the tissues of the mushroom.