English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/54139
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Reproductive biology of Petrocoptis crassifolia Rouy (Caryophyllaceae), a chasmophilous endemic plant of the Central Pyrenes

AuthorsGarcía González, María Begoña ; Antor, Ramón J.; Villar Pérez, Luis
KeywordsReproductive biology
Petrocoptis crassifolia
Endemic plant
Issue Date1993
PublisherBirkhäuser Verlag
CitationBotanica Helvetica 103 (2): 133-140 (1993)
Abstract[EN] The reproductice biology of Petrocoptis crassifolia Rouy (Caryophyllaceae), an endemic plant of the Central Pyrenees (Spain), was studied. Its nectariferous flowers show an ultraviolet pattern in the corolla and an incipient zygomorphism in the arrangement of petals and stamens. P. crassifolia may produce seeds by autogamy but in smaller numbers than when it is pollinated by insects (mainly Hymenoptera). The fruit-set ranges between 43-80%, depending on the years and populations studied. Fruits develop towards the rock face, and seeds exhibit myxospermy; both these traits are adaptations that facilitate the deposition ofseeds in rocky substrata. Survival of the seedlings in rocky fissures at the end of the first year is 10%. Reproductive traits suggest that this species is well adapted to its habitat, and that it is not endangered. Its rarity seems to be associated mainly with a lack of dispersal mechanisms for colonizing suitable but remote habitats.
Description8 páginas
Appears in Collections:(IPE) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.