An Introduction to a Scandinavian Pollen Flora

Spatio-temporal patterns in Lateglacial and Holocene vegetation and climate of Finnmark, northernmost Europe

“…Extracts were mounted on glass slides and examined using a Leica DM/LM microscope at 400x magnification; fine detail was examined at 1000x magnification when necessary. Published keys and guides (Erdtman et al, 1961;Moore et al, 1991) were used to aid in identification of pollen and spores, critical identification being confirmed by comparison with reference material. Nomenclature for pollen and spore taxa follows the conventions proposed by Birks (1973), Mossberg and Stenberg (2003) …”

Neolithic land use in the northern Boreal zone: high-resolution multiproxy analyses from Lake Huhdasjärvi, south-eastern Finland

“…This is not surprising, as this is an entomophilous cross-pollinating plant in which pollen is carried from the anther of one flower to the stigma of another by insects. It has large dimorphic pollen grains (60 × 35 μm in brevistyled and 45 × 24 μm in longistyled flowers) (Erdtman et al 1961). Although pollen grains originating from Fagopyrum esculentum are occasionally found in sediments, they are always rare in the pollen rain (de Klerk et al 2015).…”

“…In the identification key by Faegri and Iversen (1989), all the Humulus/Cannabis-types larger than 20 μm are identified as Cannabis. Erdtman et al (1961) use a size limit of 22.5 μm. According to Beug (2004), the mean value for Humulus lupulus is 23.4 μm, and for Cannabis sativa 28.1 μm, in pollen samples that are treated with acetolysis and mounted in glycerin-gelatine.…”

“…A minimum of 900 pollen grains per sample were identified using publications of Erdtman et al (1961), Faegri and Iversen (1989), Moore et al (1991), Reille (1992Reille ( , 1995 and Beug (2004). Microcharcoal fragments >10 μm were counted on the pollen slides.…”

Pollen Morphological Studies in the Burmanniaceae

“…"About" is added if they are based on less than ten measurements. The terminology and the main morphological concepts are based on Erdtman (1952) and Erdtman et al ( , 1963 6, a dyad ( x 1 ZOO). Fig.…”