Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae

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...

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Autores principales:	Zamaloa, M.D.C., Fernández, C.A.
Formato:	JOUR
Materias:	Eocene Miocene palynology SEM South America systematics deciduous tree fossil record hemiparasite morphology pollen shrub taxonomy temperate forest Brachystachyum Fagus Loranthaceae Misodendraceae Misodendrum Misodendrum linearifolium Misodendrum punctulatum Nothofagus Santalales
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00173134_v55_n4_p278_Zamaloa
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00173134_v55_n4_p278_Zamaloa
record_format	dspace
spelling	todo:paper_00173134_v55_n4_p278_Zamaloa2023-10-03T14:14:58Z Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae Zamaloa, M.D.C. Fernández, C.A. 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 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. Fil:Zamaloa, M.D.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fernández, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00173134_v55_n4_p278_Zamaloa
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	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
spellingShingle	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 Zamaloa, M.D.C. Fernández, C.A. Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae
topic_facet	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
description	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.
format	JOUR
author	Zamaloa, M.D.C. Fernández, C.A.
author_facet	Zamaloa, M.D.C. Fernández, C.A.
author_sort	Zamaloa, M.D.C.
title	Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae
title_short	Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae
title_full	Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae
title_fullStr	Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae
title_full_unstemmed	Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae
title_sort	pollen morphology and fossil record of the feathery mistletoe family misodendraceae
url	http://hdl.handle.net/20.500.12110/paper_00173134_v55_n4_p278_Zamaloa
work_keys_str_mv	AT zamaloamdc pollenmorphologyandfossilrecordofthefeatherymistletoefamilymisodendraceae AT fernandezca pollenmorphologyandfossilrecordofthefeatherymistletoefamilymisodendraceae
_version_	1807319639375478784

Pollen morphology and fossil record of the feathery mistletoe family Misodendraceae

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