History and distribution of Sagina procumbens forma daviesii

Abstract

There have been occasional records of flore pleno forms of Sagina procumbens from Britain and Ireland for 200 years. Druce assigned these forms the varietal name var. daviesii, and a lectotype is designated here. A varietal rank cannot be maintained for this form, which becomes forma daviesii stat. nov. The records and observations on this variety are reviewed, including a new report from vc110 (Outer Hebrides), and the distribution is summarised.