Phylogenetic study of strains Pseudotrichia mutabilis and some He

Phylogenetic study of strains Pseudotrichia mutabilis and some Herpotrichia species indicated that these species are closely related, and both nested within Melanommataceae (Mugambi and Huhndorf 2009b). But in this study, Pseudotrichia guatopoensis nested in the Testudinaceae (or Platystomaceae) (Plate 1). The types of both Herpotrichia and Pseudotrichia need recollecting,

redescribing and epitypifying in order to stabiles the use of these generic names and clarify their familial status. Pseudoyuconia Lar.N. Vassiljeva, Nov. sist. Niz. Rast. 20: 71 (1983). Type species: Pseudoyuconia thalictri (G. Winter) Lar. N. Vassiljeva [as ‘thalicti’], Nov. sist. Niz. Rast. 20: 71 (1983). ≡ Leptosphaeria thalictri G. Winter, Hedwigia 10: 40 (1872). Pseudoyuconia was introduced by Vassiljeva (1983), and was monotypified by P. thalictri. Currently, Pseudoyuconia is included in Pleosporaceae GPCR Compound Library cell assay (Lumbsch and Huhndorf 2010). Pyrenophora Fr., Summa veg. Scand., Section Post. (Stockholm): 397 (1849). Type species: Pyrenophora phaeocomes (Rebent.) Fr., Summa veg. Scand., Section Post. (Stockholm): 397 (1849). ≡ Sphaeria phaeocomes Rebent., Prodr. fl. neomarch. (Berolini): 338 (1804). Pyrenophora is characterized by immersed, erumpent to nearly superficial ascomata, indefinite pseudoparaphyses,

clavate to saccate asci usually with a large apical ring, and muriform terete ascospores. Morphologically, the terete ascospores of Pyrenophora can be readily distinguished from Clathrospora and Platyspora. The indefinite pseudoparaphyses and smaller ascospores of Pyrenophora can be readily distinguished from those of Pleospora (Sivanesan 1984). Based on both morphology and molecular phylogeny, Y-27632 mw Pyrenophora is closely related to Pleosporaceae (Zhang et al. 2009a). Rechingeriella Petr., in Rechinger et al. Annln naturh. Mus. Wien 50: 465 (1940). Type species: Rechingeriella insignis Petr., Annln naturh. Mus. Wien, Ser. B, Bot. Zool. 50: 465 (1940). Rechingeriella is characterized by its erumpent to superficial, cleistothecioid Aspartate ascomata and thin, branching pseudoparaphyses (Hawksworth

and Booth 1974). Asci are obovate, thick-walled, bitunicate and evanescent, and ascospores are globose, simple, dark brown to black (based on the type specimen of R. insignis) (Hawksworth and Booth 1974). Based on these characters, R. insignis was treated as a species of Zopfia (as Z. insignis (Petr.) D. Hawksw. & C. Booth). Rechingeriella has been assigned to Botryosphaeriaceae by von Arx and Müller (1975). Further study should be conducted on the type specimen of R. insignis in order to clarify its taxonomic status and fresh collections are needed for epitypification. Rhytidiella Zalasky, Can. J. Bot. 46: 1383 (1968). Type species: Rhytidiella moriformis Zalasky, Can. J. Bot. 46: 1383 (1968). Rhytidiella was introduced based on R. moriformis, which causes perennial rough-bark of Populus balsamifera (Zalasky 1968), and produces macroconidia belonging to Phaeoseptoria.

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