THE CULTURAL CHARACTERS, STRUCTURE OF THE FRUIT BODY, AND TYPE OF INTERFERTILITY OF CERRENA UNICOLOR (BULL. EX FR.) MURR.

1963 ◽  
Vol 41 (10) ◽  
pp. 1487-1499 ◽  
Author(s):  
G. C. A. van der Westhuizen
Keyword(s):  
Type Species ◽  
Fruit Body ◽  
Cerrena Unicolor ◽  
Bipolar Type ◽  
Thin Walled

The cultural characters and morphology and construction of the fruit body of Cerrena unicolor (Bull, ex Fr.) Murr. are described. In the cultures and in the fruit bodies clamp connections are present on thin-walled as well as thick-walled hyphae. Pairings between cultures derived from single spores showed the bipolar type of interfertility. Conspecificity of some of the collections studied was confirmed by means of the "Buller phenomenon". Cerrena unicolor differs from type species of the genera Coriolus Quel., Lenzites Fr., Trametes Fr., and Daedalea Fr., to which it has been referred, in the morphology of the hyphae. It differs further from the type species of the first three genera by possessing the bipolar type of interfertility and from the type species of the fourth by possessing extracellular oxidase.

Two newly described polypores from Australasia and southern South America

1996 ◽  
Vol 9 (6) ◽  
pp. 877 ◽  
Author(s):  
M Rajchenberg ◽  
PK Buchanan
Keyword(s):  
New Zealand ◽  
South America ◽  
Fruit Body ◽  
Eucalyptus Species ◽  
Southern South America ◽  
Thin Walled ◽  
Pileus Surface

Two new multipileate species of Postia (Polyporaceae, Basidiomycotina) are described. Postia brunnea sp. nov. is characterised by a compound fruit-body with imbricate pilei, a brown, dark umbrinous upper pileus surface, hyphal walls that partially dissolve in KOH, and ellipsoid (somewhat pip- or D-shaped) spores with slightly thickened walls. The species has been found in New Zealand and Australia, on decaying logs of Eucalyptus, Libocedrus, Metrosideros and Nothofagus species, and has been confused with Ryvardenia campyla (Berk.) Rajchenb. Grifola rosularis (G.Cunn.) G.Cunn. is recognised as a synonym of R. campyla. Postia punctata sp. nov. is characterised by white, imbricate pilei with a rugose-tuberculate pileus surface and ellipsoid, thin-walled spores. It usually has 'water-soaked' spots on the pileus surface. This species is known from standing or fallen logs of Nothofagus and Eucalyptus species in southern Argentina, Chile and Tasmania.

STUDIES OF CANADIAN THELEPHORACEAE: XI. CONIDIUM PRODUCTION IN THE THELEPHORACEAE

1954 ◽  
Vol 32 (1) ◽  
pp. 259-280 ◽  
Author(s):  
Mary Barbara Maxwell
Keyword(s):  
Fruit Body ◽  
Conidium Production ◽  
Conidium Formation ◽  
Bipolar Type

Four species of the Thelephoraceae, Stereum sulcatum Burt, Vararia granulosa (Pers. ex Fries) Laurila, Corticium furfuraceum Bres., and Trechispora raduloides (Karst.) Rog. have been found to produce conidia on both simple-septate, haploid mycelia and clamp-bearing dicaryotic mycelia. The conidia of the first three species are borne on oedocephaloid conidiophores while those of the fourth are formed sympodially. In all four species, the conidia, whether produced on haploid or dicaryotic mycelia, are uninucleate and each germinates to give a simple-septate, haploid mycelium. Interfertility tests were undertaken with monosporous cultures derived from the germination of single conidia or of single basidiospores. By pairing single basidiospore cultures from an individual fruit body of both Stereum sulcatum and Vararia granulosa, it was shown that these species exhibit a bipolar type of interfertility. For each of the species under investigation, complete interfertility was obtained in pairings between single conidium cultures from different isolates of the same species. A series of single conidium cultures for each species, derived from conidia borne on a dicaryotic mycelium, when paired in all possible combinations, fell into two groups on the basis of their ability to produce clamp connections. In S. sulcatum, members of each group of single conidium cultures were interfertile with one or other of the two types of single basidiospore cultures from the same isolate. Cytological studies show that there is no fusion of nuclei prior to conidium formation on the dicaryotic mycelium. Instead, the two nuclei of the dicaryon divide separately to produce approximately equal numbers of each type of nucleus, one of which enters each conidium. As indicated by the interfertility tests, the conidia therefore contain nuclei of two reaction types which are identical with those of the two nuclei of the dicaryon and also with those of the nuclei of the parent basidiospores.

scholarly journals Three new species and a new combination of Triblidium

MycoKeys ◽  
2019 ◽  
Vol 60 ◽  
pp. 1-15
Author(s):  
Tu Lv ◽  
Cheng-Lin Hou ◽  
Peter R. Johnston
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Dna Sequences ◽  
Morphological Study ◽  
Type Species ◽  
New Combination ◽  
Molecular Phylogenetic ◽  
Thin Walled ◽  
Three New Species ◽  
Small Clusters

Triblidiaceae (Rhytismatales) currently consists of two genera: Triblidium and Huangshania. Triblidium is the type genus and is characterised by melanized apothecia that occur scattered or in small clusters on the substratum, cleistohymenial (opening in the mesohymenial phase), inamyloid thin-walled asci and hyaline muriform ascospores. Before this study, only the type species, Triblidium caliciiforme, had DNA sequences in the NCBI GenBank. In this study, six specimens of Triblidium were collected from China and France and new ITS, mtSSU, LSU and RPB2 sequences were generated. Our molecular phylogenetic analysis and morphological study demonstrated three new species of Triblidium, which are formally described here: T. hubeiense, T. rostriforme and T. yunnanense. Additionally, our results indicated that Huangshania that was considered to be distinct from Triblidium because of its elongated, transversely-septate ascospores, is congeneric with Triblidium. Therefore, we have placed Huangshania in synonymy under Triblidium, rendering Triblidiaceae a monotypic family.

scholarly journals Fertile Prototaxites taiti : a basal ascomycete with inoperculate, polysporous asci lacking croziers

2017 ◽  
Vol 373 (1739) ◽  
pp. 20170146 ◽  
Author(s):  
Rosmarie Honegger ◽  
Dianne Edwards ◽  
Lindsey Axe ◽  
Christine Strullu-Derrien
Keyword(s):  
Electron Microscopy ◽  
Type Species ◽  
Lower Devonian ◽  
Terrestrial Ecosystem ◽  
Tree Trunk ◽  
Thin Sections ◽  
Rhynie Chert ◽  
Thin Walled ◽  
Reproductive Characters ◽  
Scanning Electron

The affinities of Prototaxites have been debated ever since its fossils, some attaining tree-trunk proportions, were discovered in Canadian Lower Devonian rocks in 1859. Putative assignations include conifers, red and brown algae, liverworts and fungi (some lichenised). Detailed anatomical investigation led to the reconstruction of the type species, P. logani , as a giant sporophore (basidioma) of an agaricomycete (= holobasidiomycete), but evidence for its reproduction remained elusive. Tissues associated with P. taiti in the Rhynie chert plus charcoalified fragments from southern Britain are investigated here to describe the reproductive characters and hence affinities of Prototaxites . Thin sections and peels (Pragian Rhynie chert, Aberdeenshire) were examined using light and confocal microscopy; Přídolí and Lochkovian charcoalified samples (Welsh Borderland) were liberated from the rock and examined with scanning electron microscopy. Prototaxites taiti possessed a superficial hymenium comprising an epihymenial layer, delicate septate paraphyses, inoperculate polysporic asci lacking croziers and a subhymenial layer composed predominantly of thin-walled hyphae and occasional larger hyphae. Prototaxites taiti combines features of extant Taphrinomycotina (Neolectomycetes lacking croziers) and Pezizomycotina (epihymenial layer secreted by paraphyses) but is not an ancestor of the latter. Brief consideration is given to its nutrition and potential position in the phylogeny of the Ascomycota. This article is part of a discussion meeting issue ‘The Rhynie cherts: our earliest terrestrial ecosystem revisited’.

scholarly journals Allophlebia, A New Genus to Accomodate Phlebia Ludoviciana (Agaricomycetes, Polyporales)

2021 ◽  
Author(s):  
Carla Rejane de Sousa Lira ◽  
Renata dos Santos Santos Chikowski ◽  
Vítor Xavier de Lima ◽  
Karl-Henrik Larsson ◽  
Tatiana Baptista Gibertoni
Keyword(s):  
Geographic Distribution ◽  
Type Species ◽  
New Genus ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Combination ◽  
Hyphal System ◽  
Rdna Sequences ◽  
New Information ◽  
Thin Walled

Abstract Allophlebia is proposed as a new genus in Meruliaceae based on morphological characters and molecular data. The genus is typified by Peniophora ludoviciana and the new combination A. ludoviciana is proposed. The genus is so far monotypic. The type species is characterized by a resupinate basidioma, a monomitic hyphal system with clamp connections, two types of cystidia (leptocystidia and metuloids), clavate basidia, and hyaline, thin-walled and ellipsoid basidiospores. A phylogeny for Allophlebia and related taxa was inferred from ITS and nLSU rDNA sequences and new information about the geographic distribution of A. ludoviciana is provided.

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