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A new Psammina species with exceptionally long conidial arms, with a key to the ten known species of the genus

Published online by Cambridge University Press:  11 November 2020

Henk-Jan van der Kolk Open the ORCID record for Henk-Jan van der Kolk [Opens in a new window] ,
Peter M. Earland-Bennett  and
David L. Hawksworth
Henk-Jan van der Kolk*
Affiliation:
Bereklauw 93, Bennekom, 6721RH, The Netherlands
Peter M. Earland-Bennett
Affiliation:
44 Sherwood Way, Southend-on-Sea, EssexSS2 4SR, UK
David L. Hawksworth
Affiliation:
Department of Life Sciences, The Natural History Museum, Cromwell Road, LondonSW7 5BD, UK Comparative Plant and Fungal Biology, Royal Botanic Gardens, Kew, SurreyTW9 3DS, UK
*
Author for correspondence: Henk-Jan van der Kolk. E-mail: henk-jan@blwg.nl
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Abstract

The algicolous and lichenicolous species Psammina filamentosa is described from the Netherlands and the UK, and is characterized by long (generally over 50 μm) and somewhat tapered conidial arms. Psammina filamentosa is compared with other Psammina specimens found in the same habitat, growing on algae or lichens on the dry side of trees and stones. Psammina filamentosa, P. inflata and P. stipitata differ in the dimensions of their conidial arms. Psammina simplex, however, may be a synonym of P. stipitata, and a DNA study is needed to determine whether it is a distinct species or developing material of P. stipitata. Psammina inflata is also reported as new for the Netherlands. A new worldwide key to the 10 species of Psammina currently known is provided, including three species described from plant material.

Keywords

algicolouscoelomyceteshyphomyceteslichenicolousThe NetherlandsUK
Type
Standard Papers
Information
The Lichenologist , Volume 52 , Issue 5 , September 2020 , pp. 337 - 343
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press on behalf of the British Lichen Society

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