by Dr M Lueth ©.
*1: Chyenhal Moor near Newlyn, 1844, AG (PNZ) (Paton 1969a:
*2: Gunwen Moor near Bodmin, 1891, RVT comm. JAP (B) (Warburg 1964:
733, Paton 1969a: 748).
Often grows in pure patches in shallow water of
small pools in open oligotrophic mires. Detailed habitat notes
from Cornwall are as follows. Two sites on Woon Gumpus Common,
at bottom of shallow stream in acidic heathland and in shallow
water of oligotrophic pool with Potamogeton
polygonifolius, Juncus bulbosus and Sarmentypnum
exannulatum. E. of Goonhavern: shallow pools and marshy
area among mine-spoil, not far from sphagna; some partly
shaded by Grey Willows. Tregonning Hill: submerged in shallow
water in small part-shaded pool in heathy area at edge of old
Not seen c.fr.