Thalloconidia in the genus Umbilicaria
Hypothalline, hyphomycetous anamorphs ‐ thalloconidia ‐ from 18 taxa in the lichen genus Umbilicaria have been studied in detail with the aid of scanning and transmission electron microscopy. These asexual propagules are brown to dark brown, single‐to multi‐cellular (up to 2500 cells), spherical to...
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crwiley:10.1111/j.1756-1051.1990.tb00546.x 2024-09-15T17:47:56+00:00 Thalloconidia in the genus Umbilicaria Hestmark, Geir 1990 http://dx.doi.org/10.1111/j.1756-1051.1990.tb00546.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1990.tb00546.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1990.tb00546.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Nordic Journal of Botany volume 9, issue 5, page 547-574 ISSN 0107-055X 1756-1051 journal-article 1990 crwiley https://doi.org/10.1111/j.1756-1051.1990.tb00546.x 2024-07-30T04:21:05Z Hypothalline, hyphomycetous anamorphs ‐ thalloconidia ‐ from 18 taxa in the lichen genus Umbilicaria have been studied in detail with the aid of scanning and transmission electron microscopy. These asexual propagules are brown to dark brown, single‐to multi‐cellular (up to 2500 cells), spherical to irregular, smooth to rugged; their walls two‐ or three‐layered. The thalloconidia are produced and seceded directly from the cortex and/or the rhizinomorphs on the lower side of the thallus. Conidiomata and conidiophores are absent. The characteristics of the thalloconidia prove to be of substantial value for taxonomical work at the specific level. The anamorphs of U. antarctica and U. esculenta are described for the first time. Thirty‐five taxa from the genus Umbilicaria and 10 from the genus Lasallia were screened for the occurrence of thalloconidia with negative result. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Nordic Journal of Botany 9 5 547 574 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Hypothalline, hyphomycetous anamorphs ‐ thalloconidia ‐ from 18 taxa in the lichen genus Umbilicaria have been studied in detail with the aid of scanning and transmission electron microscopy. These asexual propagules are brown to dark brown, single‐to multi‐cellular (up to 2500 cells), spherical to irregular, smooth to rugged; their walls two‐ or three‐layered. The thalloconidia are produced and seceded directly from the cortex and/or the rhizinomorphs on the lower side of the thallus. Conidiomata and conidiophores are absent. The characteristics of the thalloconidia prove to be of substantial value for taxonomical work at the specific level. The anamorphs of U. antarctica and U. esculenta are described for the first time. Thirty‐five taxa from the genus Umbilicaria and 10 from the genus Lasallia were screened for the occurrence of thalloconidia with negative result. |
format |
Article in Journal/Newspaper |
author |
Hestmark, Geir |
spellingShingle |
Hestmark, Geir Thalloconidia in the genus Umbilicaria |
author_facet |
Hestmark, Geir |
author_sort |
Hestmark, Geir |
title |
Thalloconidia in the genus Umbilicaria |
title_short |
Thalloconidia in the genus Umbilicaria |
title_full |
Thalloconidia in the genus Umbilicaria |
title_fullStr |
Thalloconidia in the genus Umbilicaria |
title_full_unstemmed |
Thalloconidia in the genus Umbilicaria |
title_sort |
thalloconidia in the genus umbilicaria |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1111/j.1756-1051.1990.tb00546.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1990.tb00546.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1990.tb00546.x |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Nordic Journal of Botany volume 9, issue 5, page 547-574 ISSN 0107-055X 1756-1051 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1756-1051.1990.tb00546.x |
container_title |
Nordic Journal of Botany |
container_volume |
9 |
container_issue |
5 |
container_start_page |
547 |
op_container_end_page |
574 |
_version_ |
1810497660320219136 |