Geographical Distribution of Vegetation in Yorkshire. Part II: Harrogate and Skipton District. (Continued)

Primula farinosa L.

“…Although their small size suggests that seeds shaken from ripe capsules borne on undamaged scapes might be transported in any direction by wind, water transport is probably far more important in spreading the species over greater distances. Such transport explains the occurrence of P. farinosa , and its associate Sesleria albicans , on riverine limestone debris over gritstone in Wharfedale, Yorkshire, several km downstream from its nearest population on limestone (Smith & Rankin 1903), and it is stated to be found near the source of the Rhone – one of several high alpine plants brought down by the glacier streams (Pl. Disp.).…”

“…In Scandinavia it is in a different ecological habitat from its congener P. scandinavica , which here occupies a mountain limestone niche, whilst P. farinosa is a more lowland plant (Smith & Fletcher 1944). A small-scale map by Smith et al . (1984) and the circumpolar map of Hultén & Fries (1986) illustrate the disjunct distribution of P. farinosa in Europe; the latter includes two localized records (suggesting the Serrania de Cuenca and the Cantabrian Mountains) in the Iberian Peninsula.…”

“…(1984) and the circumpolar map of Hultén & Fries (1986) illustrate the disjunct distribution of P. farinosa in Europe; the latter includes two localized records (suggesting the Serrania de Cuenca and the Cantabrian Mountains) in the Iberian Peninsula. Smith et al . (1984) list absences from Ireland, Iceland, Norway, Finland, Belgium, Holland, Portugal, Greece, France, middle Germany and Italy.…”

“…Rivers listed by Shishkin & Bobrov (1952) (Divina, Pechora, Ob′ and Yenisey) are shown. The Arctic sector of Polunin (1959) is shaded: Sources Hämet-Ahti et al (1998), Dahl (1998), Haeupler & Schönfelder (1988), Hultén & Fries (1986), Lounamaa (1992), Polunin & Smythies (1973), Shishkin & Bobrov (1952), Smith et al (1984), and Smith & Fletcher (1944). given as − 1 ° C. It is most commonly found in the UK on wet, tussocky cattle-poached flat ground (mires) over Carboniferous or Magnesian Limestone, on slopes where seepage occurs and where soil creep or solifluxion leaves transverse ridges in parts (microsites) occasionally devoid of plant cover. It is also found on sheep-and cattle-grazed hillsides, particularly along streamsides, but always absent from slopes of southerly aspect; likewise it occurs on the north-facing slopes of the denes in the Magnesian Limestone area of Durham (Heslop-Harrison & Richardson 1953).…”

Ecology of Woodland Plants in the Neighbourhood of Huddersfield.

“…However, the subject was at once taken in hand by his brother, William 0. Smith, who has since actively continued the work, not only in Scotland, where other maps dealing with Forfar and Fife have been published (87), but two areas in West Porkshire (88,Sg) have also been mapped with the assistance of C . E. Moss and W. 1%.…”