Taxonomical and ecological studies in Caltha palustris L. (preliminary report)
The genus Caltha comprises approximately 12-16 species growing in wet, marshy places in arctic and North and South temperate regions. The genus in classed in the tribe Helleboreae of the Ranunculaceae. A. de Candolle (1818) subdivided the genus into two sections: Psychrophila and Populago, the disti...
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ftnaturalis:oai:naturalis:535089 2023-05-15T15:03:57+02:00 Taxonomical and ecological studies in Caltha palustris L. (preliminary report) Smit, Petra G. 1967 application/pdf http://www.repository.naturalis.nl/record/535089 http://www.repository.naturalis.nl/document/572662 unknown http://www.repository.naturalis.nl/record/535089 http://www.repository.naturalis.nl/document/572662 (c) Naturalis Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.278 (1967) nr.1 p.500 Article / Letter to the editor 1967 ftnaturalis 2022-09-01T06:15:24Z The genus Caltha comprises approximately 12-16 species growing in wet, marshy places in arctic and North and South temperate regions. The genus in classed in the tribe Helleboreae of the Ranunculaceae. A. de Candolle (1818) subdivided the genus into two sections: Psychrophila and Populago, the distinguishing features being that in the former the calyx is persistent, the auricles of the leaf laminae having upturned to erect appendages, whereas in the latter the calyx is deciduous and the leaves are cordate to reniform. In the section Psychrophila he placed two species of the Southern Hemisphere, the other section including all the species of the Northern Hemisphere. The peculiar leaf characters of the species of the Southern Hemisphere (5-8) are highly distinctive. Not only the morphological characters of some species of the genus vary considerably, but also in terms of cytology differentiation within the genus and even within species occurs. Therefore, various authors differ in that opinion with regard to the taxonomic treatment of the many forms. Article in Journal/Newspaper Arctic Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) Arctic |
institution |
Open Polar |
collection |
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
op_collection_id |
ftnaturalis |
language |
unknown |
description |
The genus Caltha comprises approximately 12-16 species growing in wet, marshy places in arctic and North and South temperate regions. The genus in classed in the tribe Helleboreae of the Ranunculaceae. A. de Candolle (1818) subdivided the genus into two sections: Psychrophila and Populago, the distinguishing features being that in the former the calyx is persistent, the auricles of the leaf laminae having upturned to erect appendages, whereas in the latter the calyx is deciduous and the leaves are cordate to reniform. In the section Psychrophila he placed two species of the Southern Hemisphere, the other section including all the species of the Northern Hemisphere. The peculiar leaf characters of the species of the Southern Hemisphere (5-8) are highly distinctive. Not only the morphological characters of some species of the genus vary considerably, but also in terms of cytology differentiation within the genus and even within species occurs. Therefore, various authors differ in that opinion with regard to the taxonomic treatment of the many forms. |
format |
Article in Journal/Newspaper |
author |
Smit, Petra G. |
spellingShingle |
Smit, Petra G. Taxonomical and ecological studies in Caltha palustris L. (preliminary report) |
author_facet |
Smit, Petra G. |
author_sort |
Smit, Petra G. |
title |
Taxonomical and ecological studies in Caltha palustris L. (preliminary report) |
title_short |
Taxonomical and ecological studies in Caltha palustris L. (preliminary report) |
title_full |
Taxonomical and ecological studies in Caltha palustris L. (preliminary report) |
title_fullStr |
Taxonomical and ecological studies in Caltha palustris L. (preliminary report) |
title_full_unstemmed |
Taxonomical and ecological studies in Caltha palustris L. (preliminary report) |
title_sort |
taxonomical and ecological studies in caltha palustris l. (preliminary report) |
publishDate |
1967 |
url |
http://www.repository.naturalis.nl/record/535089 http://www.repository.naturalis.nl/document/572662 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.278 (1967) nr.1 p.500 |
op_relation |
http://www.repository.naturalis.nl/record/535089 http://www.repository.naturalis.nl/document/572662 |
op_rights |
(c) Naturalis |
_version_ |
1766335803476148224 |