Primitively Columellaless Pollen: A New Concept in the Evolutionary Morphology of Angiosperms
Authors:
- 7 February 1975
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 187 (4175) , 445-447
Abstract
Comparative study of pollen of the ranalean complex has revealed a remarkable, hitherto unrecognized characteristic of primitive angiosperm pollen, namely, its complete lack of columellae. Pollen with such exine has been designated atectate and taxa in the Magnoliaceae, Degeneriaceae, Eupomatiaceae, Annonaceae, and possibly Himantandraceae and Nymphaeaceae have pollen which is considered to be primitively columellaless.Keywords
This publication has 12 references indexed in Scilit:
- EVOLUTION OF EXINE STRUCTURE IN THE POLLEN OF PRIMITIVE ANGIOSPERMSAmerican Journal of Botany, 1974
- Contributions to the pollen morphology and phylogeny of the Annonaceae. IIBotanical Journal of the Linnean Society, 1972
- CHROMOSOME NUMBERS, PHYLOGENY, PHYTOGEOGRAPHY OF THE ANNONACEAE AND THEIR BEARING ON THE (ORIGINAL) BASIC CHROMOSOME NUMBER OF ANGIOSPERMSTaxon, 1972
- Unique Type of Angiosperm Pollen from the Family AnnonaceaeScience, 1971
- Contributions to the Pollen Morphology and Phylogeny of the Annonaceae. IGrana, 1971
- THE POLLEN WALL OF CANNA AND ITS SIMILARITY TO THE GERMINAL APERTURES OF OTHER POLLENAmerican Journal of Botany, 1970
- Pollen Morphology of Saprophytic Taxa in the GentianaceaeAnnals of the Missouri Botanical Garden, 1969
- Synopsis of a Putatively Phylogenetic Classification of the Flowering PlantsAliso, 1968
- The Fine Structure of Some Gymnosperm Pollen WallsGrana Palynologica, 1966
- Pollen of Degeneria vitiensisJournal of the Arnold Arboretum, 1965