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Gymnopus villosipes - A common collybioid agaric from California
Abstract
Marasmius villosipes, first described from material collected under Monterey pines in Australia, represents a common collybioid agaric native to California. The species is redescribed and illustrated, and a formal transfer to Gymnopus is proposed.
... Gymnopus villosipes/parvulus clade (Fig. 13) 15.4.1. Gymnopus villosipes Desjardin et al. (1997) compared California material to the type of Marasmius villosipes Cleland from Australia, and concluded that the species was probably introduced into Australia. Our specimen was field-identified by Desjardin (pers. ...
... Our specimen was field-identified by Desjardin (pers. comm.) and conformed to the description furnished by Desjardin et al. (1997). Desjardin et al. (1997) correctly surmised its relationship with G. biformis, confirmed here. ...
... comm.) and conformed to the description furnished by Desjardin et al. (1997). Desjardin et al. (1997) correctly surmised its relationship with G. biformis, confirmed here. ...
Clade /omphalotaceae (Moncalvo et al. 2002) comprises several genera of the traditional family Tricholomataceae (a group of white-spored mushrooms). Using ITS 1-5.8S-ITS 2 sequences of nuclear ribosomal DNA, we present a phylogenetic reconstruction of /omphalotaceae. In order to use taxo-nomenclatural names as accurately as possible, we have compared voucher basidiomata to type specimens and have employed sexual compatibility experiments to probe the genetic cohesion of putatively related collections. Numerous generic type species are placed within the phylogeny and taxonomic implications are discussed. An area of tandem repeats was discovered in numerous species, with implications for their phylogenetic placement. In some widely distributed species phylogeographic signals were inferred. A few new taxa and a few new nomenclatural combinations are proposed.
... μm) (Desjardin et al. 1999). Collybiopsis ramealis has a smaller basidiocarp (2-20 mm), shorter basidiospores (7.8-11 × 2.5-4 mm) and different type of pileipellis (Rameales-structure) (Noordeloos 1983;Desjardin et al. 1997). Phylogenetically, Co. fulva is closely related to Co. ramulicola. ...
... Collybiopsis subpruinosa has differences in having small central papilla on pileus, fewer lamellulae (3-4 series), vivid colored lamellae, thicker basidiospores (4.5-5.2 μm wide), larger basidia (30-36 × 7.5-8.5 μm) and cheilocystidia (25-80 × 5-16 μm), thick-walled trama hyphae (0.5-1 μm), caulocystidia with a wider size range, and a habit of growing solitary on rotten twigs or logs (Desjardin et al. 1999). Collybiopsis undulata is phylogenetically close to Co. villosipes but Co. villosipes can be differentiated by having fewer lamelluale (2-3 series), vivid colored lamellae, thicker stipe (1.5-4.0 mm), slightly thicker basidiospores (3.5-4.5 μm wide), and basidia (25-34 × 6.5-7.5 μm) (Desjardin et al. 1997). Diagnosis. ...
Collybiopsis is a genus of the gymnopoid/marasmioid complex of the family Omphalotaceae. The classification system of Collybiopsis has recently undergone large changes through molecular approaches. The new classification system has not been applied for Collybiopsis in the Republic of Korea, and general research on this genus was also lacking. In this study, we analyzed the Collybiopsis species in the Republic of Korea by assessing all gymnopoid/marasmioid specimens collected nationwide for ten years by combining morphological approaches and multilocus (ITS + nrLSU) phylogenetic analysis. We thus confirmed that 16 species of Collybiopsis are present in the Republic of Korea, including two previously unreported species ( Co. nonnulla and Co. dichroa ) and seven new species ( Co. albicantipes sp. nov. , Co. clavicystidiata sp. nov. , Co. fulva sp. nov. , Co. orientisubnuda sp. nov. , Co. subumbilicata sp. nov. , Co. undulata sp. nov. , and Co. vellerea sp. nov. ). A thorough examination of the Collybiopsis suggested that it is difficult to distinguish or identify the species based on morphological characteristics only; a combined molecular approach is needed for accurate identification. The Collybiopsis database of the Republic of Korea is updated, and information on the new species is provided. Five new combinations from Marasmiellus to Collybiopsis are also proposed ( Co. istanbulensis comb. nov. , Co. koreana comb. nov. , Co. omphalodes comb. nov. , Co. pseudomphalodes comb. nov. , and Co. ramuliciola comb. nov. ).
... Gymnopus villosipes (Cleland) Desjardín, Hallin & Perry es una especie encontrada comúnmente en la costa de California, EE.UU. (Desjardin et al., 1997) y fue descripta por primera vez como Marasmius villosipes por Cleland (1934) a partir de colecciones obtenidas en pinares de Australia. Con respecto al género Coprinopsis P. Karst, creado en 1881 (Karst, 1881), este tuvo un aumento en el número de especies luego que Redhead et al. (2001) propusieron subdividir el género Coprinus en Coprinus sensu stricto (Agaricaceae), Coprinellus, Coprinopsis y Parasola, estos tres últimos dentro de la familia Psathyrellaceae, basados en caracteres moleculares. ...
... Se caracteriza por tener un píleo castaño, laminillas concoloras y queilocistidios claviformes con el ápice irregular. Esta especie, nunca encontrada en la Argentina, seguramente amplió su distribución gracias al ambiente favorable encontrado en los bosques de pino, hábitat similar dónde fue encontrado en Australia, y Estados Unidos (Desjardin et al., 1997). ( Singer, Lilloa22: 459 (1951) [1949]. ...
Three interesting species: Agrocybe molesta, Coprinopsis romagnesiana and Gymnopus vellosipes were found for the first time in Argentina, Pinamar, Province of Buenos Aires. The species were described and illustrated.
... Currently, Gymnopus represents mushrooms mainly from Collybia sections Vestipedes, Levipedes, Subfumosae, and Iocephalae (sensu Singer, 1986). Accordingly, newly described species from different geographic locations have been placed in Gymnopus (Halling, 1996;Desjardin et al., 1997Desjardin et al., , 1999Ortega et al., 2003). ...
Three new species of Gymnopus are described from material collected recently in Costa Rica. Gymnopus cylindricus and G. alnicolus are placed in sect. Vestipedes. A self-cross of the new morphospecies G. pseudolodgeae revealed a unifactorial mating system. The same result was obtained in the taxonomically related G. lodgeae and G. omphalodes. Gymnopus omphalodes is proposed as a new combination. A single biological species is reported for G. omphalodes in central and southern Costa Rica.
This listing covers the period September 1, 1997 through to October 31, 1997. Citations are arranged in groups which roughly correspond with the British Mycological Society's Special Interest Committees. All correspondence about this item should be addressed to the Executive Editor. Reprints of this feature will not be available.
