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Pollen morphology and relationships of the Misodendraceae (Santalales)
Author(s) -
Feuer Sylvia
Publication year - 1981
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.1981.tb01159.x
Subject(s) - pollen , biology , aperture (computer memory) , botany , nothofagus , genus , morphology (biology) , zoology , physics , acoustics
The stem–parasitic family Misodendraceae is composed of a single genus, Misoden–drum , of 12 species endemic to the subantarctic Nothofagus forests of Chile and Argentina. Pollen of nine species was examined in the light microscope and scanning and transmission electron microscopes. Pollen is spheroidal (P/E 1 :1), sparsely echi–nate and polyporate. Aperture number is variable within and among species ranging from (3–)4–19 pores scattered randomly over the surface. Ultrastructurally, the pollen wall is composed primarily of endexine with the ektexine represented only by spines and an occasional thin granular layer between these elements. Pollen data indicate ties with the recently resurrected santalalean family Eremolepidaceae including Lepidoceras.