A second species of Neoheteroceras and additional characters of the genus

Abstract

Conidiomata stromatica, superfi cialia, 100-500 μm lata. Conidiophora ramosa, septata, 15-38 × 3-5 μm. Paraphyses absentes. Cellulae conidiogenae cylindricae, 8-17 × 3-5 μm, 1-3-annellidibus formantes. Conidia falcata, lateraliter appendiculata, 13-15-distoseptata, 110-150 × 10-12.5 μm; cellula basilaris appendicoides, 7.5-15 μm longa, basi 2.5-4 μm lata; cellulae mediis pallide brunneae, 85-107.5 μm longae; cellula apicalis 15-32.5 μm longa, basi 3-4 μm lata. Appendices cellulosae et tubulosae, continuae, hyalinae, rectae vel sinuosae, 20-37.5 × 2.5-3 μm.Conidiomata stromatic, superfi cial, dark brown to black, 100-500 μm (x = 215 μm, n = 50) wide. Conidiophores cylindrical, branched, septate, constricted at the septa, hyaline, 15-38 × 3-5 μm (x = 26.4 × 3.6 μm, n = 50). Paraphyses absent. Conidiogenous cells cylindrical to subcylindrical, hyaline, 8-17 × 3-5 μm (x = 11.5 × 4.1 μm, n = 50), with up to three inconspicuous annellations. Conidia falcate, 13-15-distoseptate, constricted at the septa, 110-150 × 10-12.5 μm (x = 127.5 × 11.0 μm, n = 50) including the apical and basal appendages, with 0-4 lateral appendages; basal cell obconic with a truncate base, attenuated at the tip, hyaline, 7.5-15 μm long, 2.5-4 μm wide at the base; median cells pale brown, 85-107.5 μm long, thick-walled, smooth; apical cell conical, attenuated at the apex as an unbranched, tubular appendage, 15-32.5 μm long, 3-4 μm wide at the base. Lateral appendages arising from median cells, cellular and tubular, unbranched, hyaline, straight or sinuate, 20-37.5 × 2.5-3 μm (x = 30.5 × 2.7 μm, n = 50).Teleomorph: unknown.

New Coelomycetous Fungi from Freshwater in Spain

“…In 1990, Roldán and Honrubia reported Bartalinia robillardoides and Truncatella angustata [ 6 ], and Giralt described Diplolaviopsis ranula [ 7 ]. Up to 2014, only 16 coelomycetous fungi had been reported from freshwater habitats [ 4 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 ].…”

Molecular phylogeny of two coelomycetous fungal genera with stellate conidia,ProsthemiumandAsterosporium, on Fagales trees

“…During our recent studies of coelomycetous fungi in Japan and Russia (Endo et al 2008;Hatakeyama et al 2008;Sato et al 2008;Shabunin et al 2008;Yonezawa and Tanaka 2008;Kamiyama et al 2009), a number of anamorphic species with star-shaped conidia were encountered on twigs of Fagales trees such as Alnus, Betula, and Fagus. Morphological studies of these fungi suggested that they are members of either Prosthemium or Asterosporium.…”

Transfer of Asterosporium orientale to the genus Prosthemium (Pleosporales, Ascomycota): a common coelomycetous fungus with stellate conidia occurring on twigs of Betula spp

“…In our ongoing study of coelomycetous fungi in Japan and Russia (Endo et al 2008;Hatakeyama et al 2008;Sato et al 2008;Shabunin et al 2008;Yonezawa and Tanaka 2008), an interesting fungus with stellate conidia was found on twigs of Betula spp. There are several anamorphic genera with stellate conidia in the coelomycetes, such as Asterosporium Kunze, Prosthemium Kunze, Psammina Sacc.…”