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 Add this item to the list  Ganoderma australe (Fr.) Pat.
   
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Page number:85 
Remarks (internal):The species is usually recognized in the field due to its distinct black crust and the dark brown pileus, tubes and context. Microscopically the spores are distinctive and the dull surface immediately rules out any species in the G. lucidum-group.
Taxonomically this species represents some problems. As Steyaert so convincingly demonstrated, there is a remarkable variation in the spore size, they are on average larger when the altitude increases. There was no discontinuity in his material of about 170 specimens.
The European taxon called G. adspersum has spore size within the variation given above and it is doubtful whether it is a species of its own.
G. applanatum is not known from the tropics and seems to be confined to the Northern Temperate Zone. I may be separated from G. australe by having a context that is dark brown close to the tubes, becoming gradually lighter towards the crust. The latter is also om average much thinner in G. applanatum than in G. australe. However, young specimens of the latter have naturally a quite thin crust. Further, the black bands found in the context of G. australe are as pointed out by Steyaert, not seen in G. applanatum. Microscopically the two species are identical even if the large spore variation seen in G. australe is not known from G. applanatum where they are 6.5-9 x 5-6.5 µm, i.e. in the lower range of the variation seen in G. australe.
Steyaert (op.cit.) used the name G. tornatum for this species and cited Polyporus australe Fr. as a synonym. However, the latter was described in Elechus Fungorum which in the Internation Code of Botanical Nomenclature (art. 13), when it comes to priority, is defined as being published on January 1. 1821 and is a part of Systema mycologicum.
 
Description type:Non-original description 
Description:Ganoderma australe (Fr.) Pat.
Bull. Soc. Mycol. Fr. 5:67, 1889. - Polyporus australe Fr. Elench. Fung. p. 108, 1828 (K'). - Polyporus tornatum Pers in Frey. Voy. aut. Monde Bot. p. 173, 1826 (PC;).
Special literature: Steyaert 1975, in Trans. Br. mycol. Soc. 65:451-67. Kotlaba & Pouzar 1971, in Ceska Mykol. 25:88-102.
Fruitbody perennial, applanate, ungulate, often irregular when growing from cracks etc., normally dimidiate and semicircular in outline, variable in size, when with pores, normally from 4-40 cm long, 4-20 cm wide and up to 10 cm thick in single fruitbodies, woody hard when dry. Pileus dull, cocoa-brown to deep umber to almost blackish in old specimens, dying or weathered specimens more greyish, surface often covered with a cinnamon to pale cocoa powder of deposited spores, otherwise surface glabrous, smooth, mostly distinctly sulcate in variable zones, somewhat cracking With age and drying, black crust present, 0.2-3 mm thick, increasing in thickness towards the base, margin lightcoloured in actively growing specimens, whitish to yellowish. Pore surface white to cream in actively growing specimens, then dark when touched, in older and resting species, pale to umber-brown, pores round, entire, quite thickwalled, 3-5 per mm, tubes dark brown in section with lightcoloured tube-walls, in older parts often stuffed with white mycelium, weakly stratified, up 6 cm thick. Context evenly dark bay brown, rarely with some white spots, in most specimens with one or several horizontal black resinous or melanoid bands above the tubes, but these bands are apparently absent in some specimens.
Hyphalo system trimitic, generative hyphae with clamps, thin-walled and hyaline, 1.5-3 µm wide, skeletal hyphae totally dominating in the fruitbody, variable brown to yellow, thick-walled to solid, up to 6 µm wide, branching variable, in lower part unbranched and then arboriform in the top, often irregular, binding hyphae delicate, mostly very thin, 1-2 µm wide and thickly branched, easiest to find in the white mycelium filling the old tubes. Spores truncate, golden-brown, echinulate, 6-13 x 4.5-8 µm (teste Steyaert op.cit.).
Habitat On deciduous wood. Distribution. Pantropical and common in East Africa. Because it has long-lived and large fruitbodies it is conspicuous and is frequently collected.
 
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