A contribution to the pollen morphology of the Cryptocarya group (Lauraceae)

In this study, pollen grains of 74 taxa (84 specimens) of the Cryptocarya group, including 22 type collections, have been examined by scanning electron microscopy. Pollen grains of Aspidostemon, Endiandra, Hexapora, Potameia and Triadodaphne are described here for the first time. For the other gener...

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Bibliographic Details
Published inGrana Vol. 57; no. 3; pp. 178 - 213
Main Author Rohwer, Jens G.
Format Journal Article
LanguageEnglish
Published Oslo Taylor & Francis 04.05.2018
Taylor & Francis Ltd
Subjects
Aspidostemon
Beilschmiedia
Collections
Cryptocarya
Electron microscopy
Endiandra
Eusideroxylon
exine
Grains
Hexapora
inaperturate
Morphology
New Caledonia
Pollen
Potameia
Potoxylon
Scanning electron microscopy
South America
type collections
South America
New Caledonia
Online AccessGet full text
ISSN0017-3134
1651-2049
1651-2049
DOI10.1080/00173134.2017.1365374

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Summary:In this study, pollen grains of 74 taxa (84 specimens) of the Cryptocarya group, including 22 type collections, have been examined by scanning electron microscopy. Pollen grains of Aspidostemon, Endiandra, Hexapora, Potameia and Triadodaphne are described here for the first time. For the other genera (Beilschmiedia, Cryptocarya, Eusideroxylon, Potoxylon) the results of previous studies are largely confirmed, but a novel type of exine covered by clavate-baculate structures was found in a few Cryptocarya species (C. gracilis and C. macrodesme from New Caledonia, C. saligna from South America). A larger diversity of spinule morphology and density than hitherto known is documented among the African species of Beilschmiedia.
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ISSN:0017-3134
1651-2049
1651-2049
DOI:10.1080/00173134.2017.1365374