230 THE MOSSES OF ESSEX :
Hypnum sub.-gen. Campylium
H. riparium Linn.
"In a pond not far from the back of Paradise Row,
Walthamstow" (2) !; "under a bridge nr. the Lea
Bridge Road" (2) !; "against a wall in Mr. Todd's
horsepond, Marsh Street," Walthamstow (2) !; "on- the
bank of a brook nr. Shernhall Street,'' Walthamstow
(2) !; Leyton (10); "scarce in gravel pits," Epping
Forest (11); nr. Chelmsford (7); N. Essex (14);
Springfield !!; Writtle !!; Broomfield !!; waste water
near Kelvedon Mill (8) !; in a well, Inworth (8) !;
Danbury Common, a somewhat elongated form !!;
Saffron Walden (9).
The figure of this species in Dr. Braithwaite's British
Moss Flora was drawn from the specimen collected at
Leyton.
var. longifolium Schimp.
Walthamstow, Epping Forest !!
H. stellatum Schreb.
"In the long bog on the forest beyond the King's
Oak" (2) !; nr. Quendon (2) !; nr. Chelmsford (7);
Galleywood Common (8) !!; Linguard Common (8) !;
West Bergholt Heath (8) !; Saffron Walden (9).
H. chrysophyllum Brid.
Saffron Walden (9).
Sub-genus Harpidium.
(In this sub-genus I have had the invaluable assistance
of Mr. J. A. Wheldon, the British authority on the
group, who has most kindly examined and named all
the available specimens. Where specimens do not
exist the naming is exceedingly doubtful.)
H. aduncum Hedw.
Nr. Chelmsford (7). (This specimen probably belongs
to H. exannulatum.)
Group Typicum Ren.
var. falcatum Schimp.
Kelvedon (8) ! This specimen is almost midway
between var. falcatum and var. aquaticum J.A.W.