Amylosporus

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Amylosporus
Systematics
Subdivision : Agaricomycotina
Class : Agaricomycetes
Subclass : insecure position (incertae sedis)
Order : Russulales (Russulales)
Family : Mountain Porling Relatives (Bondarzewiaceae)
Genre : Amylosporus
Scientific name
Amylosporus
Ryvarden

Amylosporus is a genus of fungi within the family of the mountain porling relatives (Bondarzewiaceae). The representatives of the genus have more or less stalked to resupinate , poroid fruiting bodies and a dimitic hyphae system. The septa of the hyphae are partly buckled and partly without buckles . In addition, one finds gloeoplere hyphae and amyloid , mostly finely ornamented spores. The tropical to subtropical widespread genus seems to be closelyrelated tothe Bergporlingen , but they differ in their coarse spore ornamentation. The white rot fungi live saprobion table on wood, the type species Amylosporus campbellii (syn .: Tyromyces graminicola ) but possibly live parasitically on grass.

features

The stalked to sessile fruiting bodies grow on the ground or on wood, but some species are also more or less resupinate. Her hat is colored ocher to leather yellow and her context white to pale brown. The pores are small and entire. The Dimitic hyphae system consists of hyaline, thin-walled generative hyphae, the septa of which are partly buckled and partly without buckles . Buckled septa and septa without buckles can even be found on the same hyphae cell . The thick-walled to almost completely filled, hyaline skeletal hyphae are unbranched to moderately branched. In addition, one can find more global hyphae , but these are often difficult to find. There are no cystides . The ellipsoidal spores are smooth or finely decorated with warty decoration and are colored blue to gray with iodine reagents.

Ecology and diffusion

The tropical to subtropical, saprobiontic white rot fungi grow either on wood or on the ground. The type species may live parasitically on grass. Amylosporus bracei is distributed from the Bahamas to northern Argentina. The white rot fungus Amylosporus wrightii , which grows on hardwood, is found in the subtropical rainforest of Argentina, while Amylosporus campbellii grows mostly on the ground in the grass. But it was also found in bamboo forests. The species is widespread in the tropics and subtropics. Evidence is available from the USA, Jamaica, Bermuda, the West Indies, Brazil, Venezuela, Nigeria, Kenya, Tanzania, Pakistan, India and Sri Lanka. Amylosporus ryvardenii grows on hardwood and bamboo. So far it has only been detected in Africa (Malawi and Ghana).

Systematics

The genus Amylosporus was newly described by L. Ryvarden in 1973 and is fairly well characterized. Only a few pedunculated porlings with a Dimitic hyphae have generative hyphae in which one can find both septa with buckles and septa without buckles. Gloeoplere hyphae are also very rare among the pedunculated Porlingen. The spores of Amylosporus are finely waxy and thus differ from the otherwise similar Bergporlingen, which have coarse warty ornamented spores. The latest molecular biological investigations show that Amylosporus bracei is not related to the type species, but only bears little resemblance to Wrightoporia lenta and W. luteola . The relationships within the genus and the position of the genus within the Russuloid family tree are still unclear.

species

The tropical to subtropical genus is currently (as of 2014) assigned to five species. The genus is not represented in Europe.

Scientific name author
Amylosporus bracei (Murrill) A. David & Rajchenb. 1985
Amylosporus campbellii (Berk.) Ryvarden 1977
Amylosporus daedaliformis GY Zheng & ZS Bi 1987
Amylosporus ryvardenii Stalpers 1996
Amylosporus wrightii Rajchenb. 1983

swell

Individual evidence

  1. a b c L. Ryvarden, I. Johansen: A preliminary polypore flora of East Africa . 1980, p. 243 ( Amylosporus campbellii and Amylosporus ryvardenii ).
  2. L. Ryvarden: Studies in neotropical polypores 7 . Wrightoporia (Hericiaceae, Basidiomycetes) in tropical America. In: Karstenia . tape 40: 153 , no. 2 , 2000, pp. 154 ( online ).
  3. A. David M. Rajchenberg: Pore fungi from French Antilles and Guiana . In: Mycotaxon . tape 22 , no. 2 , 1985, pp. 285-325 ( online ).
  4. M. Rajchenberg: New South American resupinate polypores . In: Mycotaxon . tape 16 , no. 2 , 1983, p. 500–506 ( online - original description).
  5. ^ J. Vlasák, J. Kout, J. Jr. Vlasák, L. Ryvarden: New records of polypores from southern Florida . In: Mycotaxon . tape 118 , 2011, p. 159-176 ( online ).