New Zealand Map Series 1:
S94 346 215 (WGS84 -43.811162 173.029766)
New Zealand Map Series 260:
N36 124 107 (WGS84 -43.811128 173.029668)
Latitude and Longitude (WGS84):
43°48´ S 173°1.8´ E (WGS84 -43.8 173.03)
Altitudes:
from 460m
Habitat:
Submerged in concrete tank near house.
Notes:
Aquatic form in base-rich medium. See also Rhynchostegium tenuifolium CHR 461900 and K.W.Allison 8145, from wet alkaline substrates.