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The database is hosted by Kiel University
and is established by Magda Wieckowska-
Lüth, Wiebke Kirleis and Kay Schmütz,
Institute for Prehistoric and Protohistoric Archaeology.

© Wieckowska-Lüth/Kirleis/Schmütz 2020

RicciaType: HdV-165

Category: Bryophyta

Taxonomical identification: cf. Riccia

First publication: van Geel, B., Hallewas, D.P. and Pals, J.P. (1983) A Late Holocene deposit under the Westfriese Zeedijknear Enkhuizen (Prov of Noord-Holland, The Netherlands): palaeoecological and archaeological aspects. Review of Palaeobotany and Palynolynology 38, 269–335

Other publication/s: No information

Description: Spores trilete, 67.9–92.2 µm in diameter, reticulate, circular to subtriangular in outline, the narrow leasura arms running to the edge of the proximal face, leasura forming part of the reticulum; Muri 4–5 µm high, the outer parts becoming hyaline, rendering the spores somewhat vague in outline; Meshes of the reticulum 5–12 µm in diameter at the proximal, and 11–15 µm at the distal side.

(Sub-) Fossil occurence: No information

Co-occurence: Pollen of Cerealia and seeds of Plantago major

Modern occurence: This species is a pioneer on arable land and occurs in more natural pioneer conditions at open sites alongside open water.

Palaeoenvironmental indication: No information