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Murornate sculpture elements
Elevations of the general surface. Examples: cristae, muri.
A ridge that is part of the ornamentation and, for example, separates the lumina in areticulate pollen grain or the striae in striate pollen grain.
Synonym of murus.
The space enclosed by the muri.
A brochus consists of one lumen of a reticulum and half of the width of the adjacentmuri.
A crest-like ornamentation element, taller than it is wide, characterized by a narrowly curved base and a sharp upper edge. Example: Cristatisporites
A general descriptive term applied in palynology to elongated, generally parallel elements separated by grooves.
Describing a type of ornamentation consisting of elongated sexine elements more than 1µm long, arranged in an irregular pattern that is intermediate between striate andreticulate.
Synonym of rugulate.
The combined elements gemmae and verrucae.
A network-like pattern consisting of lumina or other spaces wider than 1µm bordered by elements narrower than the lumina.
With narrow muri.
Describing a form of rugulate ornamentation consisting of irregularly arranged, winding, or angular rounded muri of varying thickness, which do not form a distinct reticulum, but rather a maze-like pattern.
A narrow ridge which forms the murus in a striate pattern.
Synonym of duplicolumellate.
Describing a reticulum with brochi of different sizes. Examples: Adoxa Moschatelina(Adoxaceae), Forsythia europaea (Oleaceae).
Describing a pollen grain or spore with broad muri.
Synonym of pluricolumellate.
Describing a reticulate ornamentation consisting of broad, curved muri and lumina that are often anastomosing. Example: Ceiba aesculifolia (Bombacaceae).
Structural elements fused distally forming an open reticulum.
With the columellae arranged in several rows beneath each murus.
Describing a pollen grain or spore with more or less straight muri.
Describing a pattern in which parallel or subparallel muri are cross-linked to form areticulum in the grooves. The connections between the muri lie on a single level or different levels. Example: Gentiana pneumonathe (Gentianaceae).