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Abstract:

Misodendraceae is a small family of mistletoes in the order Santalales. Its distribution is restricted to the southern South American temperate forests. The family comprises the sole genus Misodendrum with eight species of hemiparasitic shrubs, mainly parasitising the southern beech Nothofagus. This contribution presents palynological evidence from seven species, using light microscopy and scanning electron microscopy. Pollen grains are consistently small, periporate and echinate, although differences in the length of echini and number and size of pores were noted. Pollen features can be used to distinguish groups of species and, in some cases, individual species. Cluster analysis of pollen characters differentiates two main groups: one includes M. brachystachyum, M. oblongifolium and M. quadriflorum; and the other includes M. gayanum, M. linearifolium, M. punctulatum and M. angulatum. Palynological results are compared with previous systematic studies of the family. The South American fossil pollen record is summarised and characters of the fossil pollen are analysed using UPGMA to test the relationships between extant and fossil species. Miocene pollen resulted similar to species of subgenus Angelopogon while Eocene pollen is disimilar to extant species of Misodendraceae. © 2016 Collegium Palynologicum Scandinavicum.

Registro:

Documento: Artículo
Título:Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae
Autor:Zamaloa, M.D.C.; Fernández, C.A.
Filiación:Departamento de Ecología, Genética y Evolución, FCEN, Universidad de Buenos Aires - IEGEBA (CONICET-UBA), Buenos Aires, Argentina
Palabras clave:Eocene; Miocene; palynology; SEM; South America; systematics; deciduous tree; Eocene; fossil record; hemiparasite; Miocene; morphology; palynology; pollen; shrub; taxonomy; temperate forest; South America; Brachystachyum; Fagus; Loranthaceae; Misodendraceae; Misodendrum; Misodendrum linearifolium; Misodendrum punctulatum; Nothofagus; Santalales
Año:2016
Volumen:55
Número:4
Página de inicio:278
Página de fin:285
DOI: http://dx.doi.org/10.1080/00173134.2015.1120776
Título revista:Grana
Título revista abreviado:Grana
ISSN:00173134
CODEN:GRNAB
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00173134_v55_n4_p278_Zamaloa

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Citas:

---------- APA ----------
Zamaloa, M.D.C. & Fernández, C.A. (2016) . Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae. Grana, 55(4), 278-285.
http://dx.doi.org/10.1080/00173134.2015.1120776
---------- CHICAGO ----------
Zamaloa, M.D.C., Fernández, C.A. "Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae" . Grana 55, no. 4 (2016) : 278-285.
http://dx.doi.org/10.1080/00173134.2015.1120776
---------- MLA ----------
Zamaloa, M.D.C., Fernández, C.A. "Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae" . Grana, vol. 55, no. 4, 2016, pp. 278-285.
http://dx.doi.org/10.1080/00173134.2015.1120776
---------- VANCOUVER ----------
Zamaloa, M.D.C., Fernández, C.A. Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae. Grana. 2016;55(4):278-285.
http://dx.doi.org/10.1080/00173134.2015.1120776