Abstract
A new species, Descolea quercina, is described and illustrated from Northern parts of Khyber Pakhtunkhwa, Pakistan. It is characterized by medium to large basidiomata, squamose to squamose-granulose hygrophanous pileus, and limoniform, verrucose basidiospores with partly concrescent verrucae. Phylogenetic analyses of nuc rDNA region encompassing the internal transcribed spacers 1 and 2 along with 5.8S rDNA (ITS) and nuc 28S rDNA D1-D2 domains (28S) also confirmed it as a new species. A comparison with similar taxa is provided.
Highlights
The genus Descolea Singer was based on D. antarctica Singer, which has agaricoid basidiomata with an annulus, resembling Rozites or Pholiotina spp. (Horak 1971)
Descolea is currently placed in the Bolbitiaceae (Kirk et al 2008) and is characterized by dry to viscid pileus with or without squamules, central stipe with striated annulus, ochraceous spore deposit, amygdaliform to limoniform, verrucose basidiospores with a smooth apiculus, and a hymeniform pileipellis (Horak 1971)
The species appeared unique and based on discrete morphological characteristics and sequences derived from nuc rDNA region encompassing the internal transcribed spacers 1 and 2 along with 5.8S rDNA (ITS) and nuc 28S rDNA D1-D2 domains (28S), it is described here as new to science
Summary
The genus Descolea Singer was based on D. antarctica Singer, which has agaricoid basidiomata with an annulus, resembling Rozites or Pholiotina spp. (Horak 1971). The genus Descolea Singer was based on D. antarctica Singer, which has agaricoid basidiomata with an annulus, resembling Rozites or Pholiotina spp. Descolea is currently placed in the Bolbitiaceae (Kirk et al 2008) and is characterized by dry to viscid pileus with or without squamules, central stipe with striated annulus, ochraceous spore deposit, amygdaliform to limoniform, verrucose basidiospores with a smooth apiculus, and a hymeniform pileipellis (Horak 1971). Considered to be restricted to the southern hemisphere, the known 15 species (Sharma and Kumar 2011) have a wide geographical distribution (Australia, India, Japan, Korea, New Guinae, New Zealand, Pakistan, Siberia, South America) (Horak 1971; Bougher and Malajczuk 1985; Niazi et al 2007). We collected a rare and interesting species of Descolea from two locations in Northern areas of Khyber Pakhtunkhwa, Pakistan. The species appeared unique and based on discrete morphological characteristics and sequences derived from nuc rDNA region encompassing the internal transcribed spacers 1 and 2 along with 5.8S rDNA (ITS) and nuc 28S rDNA D1-D2 domains (28S), it is described here as new to science
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
