TL;DR: The phylogenetic diversity of the Clavariaceae sensu lato among Homobasidiomycetidae is examined by adding partial nuclear large subunit ribosomal DNA sequences from clavarioid and corticioid fungi to a large euagaric dataset and analyzing them both together and separately.
Abstract: Fungi that produce clavarioid fruit bodies have evolved independently many times in the Basidiomycota. The evolutionary significance of this morphology is difficult to interpret because the phylogenetic positions of many clavarioid fungi are still unknown. In this study we examined the phylogenetic diversity of the Clavariaceae sensu lato among Homobasidiomycetidae by adding partial nuclear large subunit ribosomal DNA sequences from clavarioid and corticioid fungi to a large euagaric dataset and analyzing them both together and separately. Our results indicate that the clavarioid morphology has evolved at least five times in the euagarics while the inclusion of type species enabled us to evaluate the taxonomic consequences of this polyphyletic distribution. Although the sampling available at present is incomplete, a qualitative assessment of our phylogenetic hypotheses indicates that the clavarioid habit might not be as evolutionary labile as previously reported. We propose the new genus Alloclavaria to accommodate Clavaria purpurea, which is not related to Clavaria but is derived within the hymenochaetoid clade. The Physalacriaceae and Clavariaceae are redefined to reflect monophyletic groups, and the limits of Clavaria, Clavulinopsis and Ramariopsis should be reconsidered when additional data are available.
TL;DR: This six-gene phylogeny with an expanded taxon sampling shows that typhuloid fungi evolved at least twice in the Agaricales (Pleurotineae, Clavariineae) and once in the Hymenochaetales.
TL;DR: The nomenclatural history and taxonomic characters of Clavariadelphus fistulosus are reviewed, and a new genus, Macrotyphula, is proposed to accommodate this species.
Abstract: The nomenclatural history and taxonomic characters of Clavariadelphus fistulosus are reviewed, and a new genus, Macrotyphula, proposed to accommodate this species. Macrochemical reactions on North ...
TL;DR: This study found that fungi with club type basidiomes are a primary component of the non-gilled Basidiomycota in the Arctic region which is depauperate in ‘poroid’, ‘thelephoroids’ and ‘hydnoid” fungi.
Abstract: The list of fungi with club or coralloid-type (‘clavarioid’) basidiomes from the Svalbard archipelago presented here includes 22 species from 7 genera in several families of Basidiomycota. Nineteen of them are new for the region. Genera include Artomyces , Clavaria, Clavulina, Macrotyphula, Multiclavula, Ramaria and Typhula. A quantitative analysis is also presented on the distribution of these fungi on Svalbard in comparison to similar taxa in other high Arctic regions, such as the Novaya Zemlya Isles (Russia) and Yamal Peninsula (Russia). Data suggest that for fungi with ‘clavarioid’ basidiomes richness and diversity decreases with high latitude (towards colder regions) and also with distance from the warm influence of the Gulf Stream. This study found that fungi with club type basidiomes are a primary component of the non-gilled Basidiomycota in the Arctic region which is depauperate in ‘poroid’, ‘thelephoroid’ and ‘hydnoid’ fungi.
TL;DR: The nomenclatural history and taxonomic characters of Clavariadelphus fistulosus are reviewed, and a new genus, Macrotyphula, is proposed to accommodate this species, with the most interesting being the consistently positive reaction with pyrogallol and the variable color reactions with KOH.
Abstract: SUMMARY The nomenclatural history and taxonomic characters of Clavariadelphus fistulosus are reviewed, and a new genus, Macrotyphula, proposed to accommodate this species. Macrochemical reactions on North American species of Clavariadelphus hitherto unreported or deemphasized, are summarized, with the most interesting being the consistently positive reaction with pyrogallol, and the variable color reactions with KOH. Clavariadelphus ligulus and C. sachalinensis are compared taxonomically, and the distribution of the latter reported as expanded through Scandinavia, and probably circumboreal. The type specimen of Clavaria maricola Kauffman is described in detail, a new combination in Clavulinopsis is proposed, and some possible phylogenetic relationships reported. Clavariadelphus was proposed by Donk (1933) to accommodate three species whose fruit bodies were solitary to gregarious (very rarely cespitose or fascicled) simple clubs with spongy flesh, and whose microscopic characters included large white spores, large basidia and clamped septa. Donk (1933: 73) commented, "Die cytologischen Merkmale der Basidien untersheiden sie jedoch geniigend von den fleischigen Cantharellus-arten mit runzligen Hymenium. Von Clavaria in der hier wiedergegebenen Umgrenzung wird Clavariadelphus ausser durch den Habitus, durch das weiche, schwammige Fleisch und die grossen Hymenium-elemente geschieden." Juel (1916) had investigated the cytology of the basidia in several species of clavarioid fungi, and had found the meiotic nuclear spindle orientation to be chiastic in Clavaria pistillaris Fr., C. truncatus Quel. and C. ligulus Fr., whereas Cantharellus species has been found to be stichic. Clavariadelphus was retained by Corner (1950, 1970) and expanded