Dépouillements

Gametophytes of Four Tropical Fern Genera Reproducing Independently of Their Sporophytes in the Southern Appalachians / Donald R. Farrar in Science advances, vol. 155, n°3767 (Année 1967)

Public [article]  inScience advances > vol. 155, n°3767 (Année 1967) . - pp. 1266-67 Titre : Gametophytes of Four Tropical Fern Genera Reproducing Independently of Their Sporophytes in the Southern Appalachians Auteurs : Donald R. Farrar, Auteur Article en page(s) : pp. 1266-67 Langues : Anglais (eng) Catégories : [Espèces (in biblio)] Hymenophyllum tunbrigense [Espèces (in biblio)] Trichomanes speciosum [Thèmes] Ptéridophytes (fougère, prêle, lycopode, isoète, sélaginelle) [Thèmes] Reproduction Résumé : "Vegetative reproduction and dispersal by way of gemnmnae are known to occur in four types of fern gametophytes. Although they belong to basically tropical rain-forest genera, all four types have now been discovered growing natu- rally in the vicinity of Highlands, North Carolina, as clones on shady, damp rocks, Their sporophytes were rare or absent. The gametophytes are now identified as Grammitis nimbata (Jenm.) Proctor, Grammitidaceae; Hymenophyllum tunbridgense (L.) J. Sm., Hymenophyllaceae; Vittaria lineata (L.) J. Sm., Vittariaceae; and Trichomanes, probably representing several species, Hymenophyllaceae. Identification of the Grammitis was facilitated by the presence of some juvenile or dwarfed sporophytes; this constitutes the first report of this species, genus, and family for temperate North America. Growth and spread of fern gametophytes independently of, and distant from, the corresponding sporophytes is a novel phenomenon which should be investigated in other parts of the world." (source : auteur) Type de publication : périodique Référence biblio : Farrar D., 1967 - Gametophytes of Four Tropical Fern Genera Reproducing Independently of Their Sporophytes in the Southern Appalachians. Science advances, 155 (3767) : 1266-67. ID PMB : 72709 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=72709 [article]

Exemplaires(0)

Disponibilité
aucun exemplaire