Elasmomyces, Arcangeliella, and Macowanites

Abstract

AND CARROLL W. DODGE Mycologist to the Missouri Boltaqnical Garden Professor in the Henry Shaw School of Botany of Washington University Elasmomyces and Arcangeltella were erected by Cavara to receive those forms related to Hydnangium but having a columella. In Elasmomyces the gleba may pull away from the base of the substipitate columella at maturity, while in Arcangeliella the gleba remains attached to the columella although the peridium may break away from the base partially exposing the lower part of the gleba. Arcangeliella also has lactiferous ducts in the trama, the peridium, and the columella. These characters seem important from the standpoint of comparative morphology and are worthy of generic distinction.-The lactiferous ducts at times are scant and may require careful staining. The study of the columella in fresh material is rather simple, but in dry herbarium specimens it may not show more than as a line. If whole or large sections of specimens are present they may be made to regain almost natural stature by soaking, rendering even a slight columella apparent and readily studied. When the fructifications have been sliced thin, as in many of the older collections, this character may be ambiguous. Macowanites is similar to the above two genera in some respects, but for the most part the species are larger and are more pileate than in Elasmomyces. One species with lactifer-I Published as Technical Paper No. 255, with the approval of the Director of the Oregon Agricultural Experiment Station. Contribution from the Department of Botany in cooperation with the Henry Shaw School of Botany of Washington University.

Taxonomic reconsideration of a sequestrate fungus,Octaviania columellifera, with the proposal of a new genus,Heliogaster, and its phylogenetic relationships in the Boletales

“…Phylogeny of Heliogaster columellifer in the Boletales and morphological evaluation.-Although phylogenetic placement of genus Octaviania has been attempted on the basis of morphology (Zeller and Dodge 1936, Singer and Smith 1960, Pegler and Young 1979, Beaton et al 1985, Pegler et al 1993, Bougher and Lebel 2001, Kirk et al 2001, no convincing evidence has made its placement conclusive. This implies that Octaviania might have a different origin than that of known species (Thiers 1984).…”

“…The type species, O. asterosperma Vitt., is reported worldwide (e.g. Vittadini 1831, Massee 1889, Coker and Couch 1928, Zeller and Dodge 1936, Hawker 1954, Moreno et al 1991, Cázares et al 1992, Montecchi and Sarasini 2000. From Japan three Octaviania species have been reported, O. columellifera Kobayasi (Kobayasi 1937), O. asterosperma (Kobayasi et al 1987, Yoshimi andDoi 1989) and O. tuberculata Hesse (Yoshimi and Doi 1989).…”

A phylogenetic and taxonomic revision of sequestrate Russulaceae in Mediterranean and temperate Europe

“…Sequestrate Russulaceae produce pseudoangiocarpic (‘secotioid’) basidiomata, where the stipe is external and more or less reduced, to angiocarpic (‘gasteroid’) basidiomata, where the stipe is internal, reduced to a columella, or altogether absent. Sequestrate Russulaceae seem to be widespread throughout the globe, especially in arid and semi-arid regions of Australia and New Zealand (Bougher 1997, Lebel 1998, 2001, 2002, 2003a, b, Lebel & Trappe 2000, Bougher & Lebel 2001, Lebel & Castellano 2002, Trappe & Claridge 2003, Lebel & Tonkin 2007) and North America (Zeller & Dodge 1919, 1937, Singer & Smith 1960, Smith 1963, Miller & Lebel 1999, Fogel & States 2001, Desjardin 2003, Smith et al 2006). However, several sequestrate species have also been documented in tropical forests in Africa (Dring & Pegler 1978, Eberhardt & Verbeken 2004, Verbeken & Walleyn 2010, Beenken et al 2016) and Asia (Corner & Hawker 1953, Heim 1959, Zhang & Yu 1990, Tao et al 1993, Verbeken et al 2014a, b), as well as in temperate Nothofagus forests in Patagonia (Trierveiler-Pereira et al 2015).…”

A New Record and New Localities for the Genus Sclerogaster R.Hesse in Turkey

“…Micromorphological investigations were carried out under a Nikon eclipse Ci trinocular light microscope and a DS-Fi2 digital camera and a Nikon DS-L3 displaying apparatus were used for microstructural photographing. Identification were performed with the help of Zeller and Dodge [16,17] Ecology: Solitary or gregarious, epigeous or semihypogeous, on rich humus of deciduous woods, preferably of Carpinus L., but also of Betula L., Corylus L., Fagus L., Populus L., Quercus L., Tilia L., mixed with Acer L., Fraxinus L., Sambucus L., Ulmus L., on calcareous soil, from summer to autumn [20,21]. Currently 14 hypogeus members of the order Boletales within the families Boletaceae, Paxillaceae, Rhizopogonaceae and Sclerogastraceae, and the genera Octaviania Vittad., Alpova C.W.Dodge, Melanogaster Corda, Rhizopogon Fr.…”