[article]
| Titre : |
Taxonomy and breeding system in a new species of Scophularia L. (Scrophulariaceae) from Morocco |
| Type de document : |
Imprimé |
| Auteurs : |
Ana Ortega Olivencia ; Juan Antonio Devesa Alcaraz (1955-) |
| Année de publication : |
1998 |
| Article en page(s) : |
185-202 |
| Langues : |
Anglais (eng) |
| Catégories : |
[CBNPMP-Thématique] Systématique, taxonomie
|
| Mots-clés : |
Scrophularia sp. |
| Résumé : |
A new species of the genus Scrophularia, S. fontqueri Ortega-Olivencia & Devesa, is described for the Western Rif mountains in Morocco. Similarities and differences with the most closely related species (S. auriculata Loefl. ex L. and S. viciosoi Ortega-Olivencia & Devesa) are indicated, and ecological and distribution data are provided. The new species displays a high degree of polyploidy (2n = 56), and has palynological characteristics similar to those of other species in this genus. The new species shows protogynous dichogamy and produces considerable amounts of nectar in both sexual phases. Nectar secretion was maximum during the early hours of the morning. Mean longevity of the flowers was 2.66 days. Both nectar secretion and floral longevity correlated strongly with mean daytime air temperature. Pollination experiments showed that interaction with pollinators is necessary for reproduction, and gametophytic homomorphic self-incompatibility was documented. This feature was confirmed by observation of pollen tubes after hand self-pollination. The seed/ovule ratio was very low. |
| Lien pérenne : |
DOI : 10.1111/j.1095-8339.1998.tb02115.x  |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=137912 |
in Botanical journal of the Linnean Society > 128 (2) (1998) . - 185-202
Ortega Olivencia, Ana, Devesa Alcaraz, Juan Antonio (1955-)
1998
Taxonomy and breeding system in a new species of Scophularia L. (Scrophulariaceae) from Morocco.
Botanical journal of the Linnean Society, 128(2): 185-202.
|
Taxonomy and breeding system in a new species of Scophularia L. (Scrophulariaceae) from Morocco in Botanical journal of the Linnean Society, 128 (2) (1998)
