Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories
The name Pseudoditrichum mirabile Steere et Iwatsuki is proposed for a minute moss with leafy stem 1-3 mm high and seta 6 mm long; it was collected on calcareous silt near the Sloan River, Great Bear Lake, Northwest Territories, only a few miles south of the Arctic Circle. The gametophytic character...
Published in: | Canadian Journal of Botany |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1974
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/b74-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/b74-090 |
id |
crcansciencepubl:10.1139/b74-090 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/b74-090 2023-12-17T10:25:58+01:00 Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories Steere, William Campbell Iwatsuki, Zennoske 1974 http://dx.doi.org/10.1139/b74-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/b74-090 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 52, issue 4, page 701-705 ISSN 0008-4026 Plant Science journal-article 1974 crcansciencepubl https://doi.org/10.1139/b74-090 2023-11-19T13:38:35Z The name Pseudoditrichum mirabile Steere et Iwatsuki is proposed for a minute moss with leafy stem 1-3 mm high and seta 6 mm long; it was collected on calcareous silt near the Sloan River, Great Bear Lake, Northwest Territories, only a few miles south of the Arctic Circle. The gametophytic characters agree well with those of the Ditrichaceae, a relatively primitive family, but the peristome is clearly double, with the inner and outer teeth opposite, which thereby indicates a much more advanced phylogenetic position, perhaps at the evolutionary level of the Funariaceae. As the combination of gametophytic and sporophytic characteristics exhibited by this moss does not occur in any existing family of mosses, it is therefore deemed necessary to create the new family Pseudoditrichaceae for the new genus and species described here. Article in Journal/Newspaper Arctic Great Bear Lake Northwest Territories Canadian Science Publishing (via Crossref) Arctic Northwest Territories Seta ENVELOPE(9.895,9.895,63.645,63.645) Great Bear Lake ENVELOPE(-120.753,-120.753,65.834,65.834) Steere ENVELOPE(-117.817,-117.817,-76.733,-76.733) Sloan River ENVELOPE(-117.470,-117.470,66.467,66.467) Canadian Journal of Botany 52 4 701 705 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Plant Science |
spellingShingle |
Plant Science Steere, William Campbell Iwatsuki, Zennoske Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories |
topic_facet |
Plant Science |
description |
The name Pseudoditrichum mirabile Steere et Iwatsuki is proposed for a minute moss with leafy stem 1-3 mm high and seta 6 mm long; it was collected on calcareous silt near the Sloan River, Great Bear Lake, Northwest Territories, only a few miles south of the Arctic Circle. The gametophytic characters agree well with those of the Ditrichaceae, a relatively primitive family, but the peristome is clearly double, with the inner and outer teeth opposite, which thereby indicates a much more advanced phylogenetic position, perhaps at the evolutionary level of the Funariaceae. As the combination of gametophytic and sporophytic characteristics exhibited by this moss does not occur in any existing family of mosses, it is therefore deemed necessary to create the new family Pseudoditrichaceae for the new genus and species described here. |
format |
Article in Journal/Newspaper |
author |
Steere, William Campbell Iwatsuki, Zennoske |
author_facet |
Steere, William Campbell Iwatsuki, Zennoske |
author_sort |
Steere, William Campbell |
title |
Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories |
title_short |
Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories |
title_full |
Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories |
title_fullStr |
Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories |
title_full_unstemmed |
Pseudoditrichum mirabile gen. et sp. nov. (Musci: Pseudoditrichaceae fam. nov.), a unique moss from Great Bear Lake, Northwest Territories |
title_sort |
pseudoditrichum mirabile gen. et sp. nov. (musci: pseudoditrichaceae fam. nov.), a unique moss from great bear lake, northwest territories |
publisher |
Canadian Science Publishing |
publishDate |
1974 |
url |
http://dx.doi.org/10.1139/b74-090 http://www.nrcresearchpress.com/doi/pdf/10.1139/b74-090 |
long_lat |
ENVELOPE(9.895,9.895,63.645,63.645) ENVELOPE(-120.753,-120.753,65.834,65.834) ENVELOPE(-117.817,-117.817,-76.733,-76.733) ENVELOPE(-117.470,-117.470,66.467,66.467) |
geographic |
Arctic Northwest Territories Seta Great Bear Lake Steere Sloan River |
geographic_facet |
Arctic Northwest Territories Seta Great Bear Lake Steere Sloan River |
genre |
Arctic Great Bear Lake Northwest Territories |
genre_facet |
Arctic Great Bear Lake Northwest Territories |
op_source |
Canadian Journal of Botany volume 52, issue 4, page 701-705 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b74-090 |
container_title |
Canadian Journal of Botany |
container_volume |
52 |
container_issue |
4 |
container_start_page |
701 |
op_container_end_page |
705 |
_version_ |
1785577637506187264 |