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Oligoporus norrlandicus nov. sp.
Cryptogamie, Mycol., 2000, 21 (3): 145-146 0 2000 Adac&ditions scientifiques et medicales Elsevier SAS. Tous droits r&en& S0181158400010393/SC0
Oligoporus
norrlundicus
Hakan BERGLUND”:
145
nov. sp.
Leif RYVARDEP
4Department of Applied Science, Mid Sweden University, SE-871 88 Ham&and, Sweden bBotany Department, University of Oslo, PO. Box. 1045, Blindem, N-0316 Oslo, Norway (Received 1 February
2000, accepted 30 June 2000)
Abstract - Oligoporusnorrlandicusis describedas new and comparedwith similar white
resupinatespecies.0 2000Adac/ Editionsscientifiques et medicalesElsevierSAS Oligoporus
/ Sweden
INTRODUCTION In connection with an investigation of Granlandet nature reserve in Norrbotten county in northern Sweden, a number of wood-inhabiting fungi were collected. Among these was a resupinatewhite polypore for which no name could be found in pertinent literature (Gilbertson & Ryvarden 1985-86, Ryvarden & Gilbertson 1993-94 or Bondartzew 1971). The specimenswere laid aside for a while and then again reexamined, but no name could be found and we decided it must representan undescribedspecies.
TAXONOMY Oligoporus norrlandicus Berglund & Ryvarden nova. sp. Fig. 1 FructQicatio resupinata, alba, pori angulati, 24 per mm, systemahypharum monomiticum, hyphae generatoriae jibulatae, sporae 5.5-6 x 2.5-3.5 pm Holotype: Sweden, Norrland, Gallivare, Granlandet nature-reserve, Aug. 1998 on dead Picea abies, leg. H. Berglund 475, S, isotype in 0. Basidiocarps annual, resupinate,separable,effused, up to 1.5 mm thick, soft when fresh, fragile when dry, no particular taste; margin narrow, white, pore surface white, pores angular, variable in size, 2-4 per mm; tube layer concolorous with pore surface, up to 3 mm thick; subiculum white, very thin. Hyphal system monomitic; generative hyphae hyaline, thin-walled, with numerous clamps, 24 pm in diam. Basidia clavate, 4-sterigmate, 20-25 x 6-7 pm with a basal clamp. Basidiospores broadly ellipsoid, smooth, thin-walled, hyaline, negative in Melzer’s reagent, 5.5-6 x 2.5-3.5 pm. * Correspondence
and reprints:
[email protected]
146
H. Berglund & L. Ryvarden
Fig. 1. A) Oligoporus norrlandicus, Basidiospores, from the holotype, B) 0. placer&s Basidiospores, from the type of B. roseomaculata l? Karsten, a taxonomic synonym of 0. placentus, C) 0. rancidus Basidiospores, from the holotype.
Type of rot. Causesa brown rot in conifers. Substrata. The type was collected on Picea abies. Distribution. Known only from the type locality. Remarks. Above all, it is the wide sporesthat separatesthis new speciesfrom all other resupinate and white Oligoporus species. 0. placentus (Fr.) Gilbn. & Ryvarden and 0. rancidus (Bres.) Gilbn. & Ryvarden have both basidiosporeswith the samelength as for the new speciesdescribed here, but they are narrower and cylindrical, seeFig. 1.
REFERENCES BONDARTZEW A.S., 1971 - The Polyporaceae of the European USSR and Caucasia. Acad. Nauk SSSR, Bot. Inst. Komarova, St. Petersburg, Russia. GILBERTSON R.L. & RYVARDEN L., 1985-86 - North American Polypores, Fungiflora, Oslo, Norway. RYVARDEN L. & GILBERTSON R.L. 1993-94 - European polypores. Synop. Fungorum 67: l-743.
Oligoporus
norrlundicus
Hakan BERGLUND”:
145
nov. sp.
Leif RYVARDEP
4Department of Applied Science, Mid Sweden University, SE-871 88 Ham&and, Sweden bBotany Department, University of Oslo, PO. Box. 1045, Blindem, N-0316 Oslo, Norway (Received 1 February
2000, accepted 30 June 2000)
Abstract - Oligoporusnorrlandicusis describedas new and comparedwith similar white
resupinatespecies.0 2000Adac/ Editionsscientifiques et medicalesElsevierSAS Oligoporus
/ Sweden
INTRODUCTION In connection with an investigation of Granlandet nature reserve in Norrbotten county in northern Sweden, a number of wood-inhabiting fungi were collected. Among these was a resupinatewhite polypore for which no name could be found in pertinent literature (Gilbertson & Ryvarden 1985-86, Ryvarden & Gilbertson 1993-94 or Bondartzew 1971). The specimenswere laid aside for a while and then again reexamined, but no name could be found and we decided it must representan undescribedspecies.
TAXONOMY Oligoporus norrlandicus Berglund & Ryvarden nova. sp. Fig. 1 FructQicatio resupinata, alba, pori angulati, 24 per mm, systemahypharum monomiticum, hyphae generatoriae jibulatae, sporae 5.5-6 x 2.5-3.5 pm Holotype: Sweden, Norrland, Gallivare, Granlandet nature-reserve, Aug. 1998 on dead Picea abies, leg. H. Berglund 475, S, isotype in 0. Basidiocarps annual, resupinate,separable,effused, up to 1.5 mm thick, soft when fresh, fragile when dry, no particular taste; margin narrow, white, pore surface white, pores angular, variable in size, 2-4 per mm; tube layer concolorous with pore surface, up to 3 mm thick; subiculum white, very thin. Hyphal system monomitic; generative hyphae hyaline, thin-walled, with numerous clamps, 24 pm in diam. Basidia clavate, 4-sterigmate, 20-25 x 6-7 pm with a basal clamp. Basidiospores broadly ellipsoid, smooth, thin-walled, hyaline, negative in Melzer’s reagent, 5.5-6 x 2.5-3.5 pm. * Correspondence
and reprints:
[email protected]
146
H. Berglund & L. Ryvarden
Fig. 1. A) Oligoporus norrlandicus, Basidiospores, from the holotype, B) 0. placer&s Basidiospores, from the type of B. roseomaculata l? Karsten, a taxonomic synonym of 0. placentus, C) 0. rancidus Basidiospores, from the holotype.
Type of rot. Causesa brown rot in conifers. Substrata. The type was collected on Picea abies. Distribution. Known only from the type locality. Remarks. Above all, it is the wide sporesthat separatesthis new speciesfrom all other resupinate and white Oligoporus species. 0. placentus (Fr.) Gilbn. & Ryvarden and 0. rancidus (Bres.) Gilbn. & Ryvarden have both basidiosporeswith the samelength as for the new speciesdescribed here, but they are narrower and cylindrical, seeFig. 1.
REFERENCES BONDARTZEW A.S., 1971 - The Polyporaceae of the European USSR and Caucasia. Acad. Nauk SSSR, Bot. Inst. Komarova, St. Petersburg, Russia. GILBERTSON R.L. & RYVARDEN L., 1985-86 - North American Polypores, Fungiflora, Oslo, Norway. RYVARDEN L. & GILBERTSON R.L. 1993-94 - European polypores. Synop. Fungorum 67: l-743.