[article]
| Titre : |
A revision of the genus Petrorhagia |
| Auteurs : |
P. W. Ball, Auteur ; Vernon Hilton Heywood (1927-….), Auteur |
| Année de publication : |
1964 |
| Article en page(s) : |
pp. 121-172 |
| Langues : |
Anglais (eng) |
| Catégories : |
[Espèces (in biblio)] Petrorhagia
[Thèmes] Taxonomie
|
| Résumé : |
"This revision was undertaken in connexion with the preparatory work for Flora Europaea. The genus Petrorhagia (Tunica auct.) had not been the subject of a recent survey and several interesting problems of generic circumscription required a solution. The greater part of this study has been based on herbarium material from the institutions listed below. Several species are still known from only a few collections and the scope for field work in this genus is very wide.
Over fifty taxa within the genus have been described at specific level (under Tumica, Gypsophila, Dianthus, etc.). Twenty-five species are recognized in this revision.
Numerous taxonomic and distributional problems remain to be solved, especially in the eastern Mediterranean region where complex variation patterns are evident from the material it has been possible to examine. These patterns bear some resemblance to the kind described by Ehrendorfer (1958) as Fossil Hybrid Complexes in his studies on Galium sect. Jubogalium. Much further factual information is needed, however, before the possible evolutionary relationships of the species of Petrorhagia can be outlined. The species and subspecies are delimited in this revision in a morphologicalgeographical sense (cf. Heywood, 1958)." (source : auteurs) |
| Type de publication : |
périodique |
| Référence biblio : |
Ball P.-W., Heywood V., 1964 - A revision of the genus Petrorhagia. Bulletin of the British Museum, Natural History. Botany, 3 (4) : 121-172. |
| ID PMB : |
72177 |
| En ligne : |
https://www.biodiversitylibrary.org/item/19380#page/163/mode/1up |
| Format de la ressource électronique : |
document |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=72177 |
in Bulletin of the British Museum, Natural History. Botany > vol. 3, n°4 (Année 1964) . - pp. 121-172
[article]
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