MOSSES AND HEPATICS OF THE EAST RIDING 138 
Dane’s Dyke, ee (with double nerve long and strong).— 
P. undulatum B. & §S., Cliff is od and Holme, P.; Elvington, 
Spruce ; Houghton Wood, Cufts, 
Amblystegium serpens B. & & 8., u Badlethorpe, S,; Drewton, 
Brantingham, oe Kirk Ella a, W.; Howde en, Sanath bears 
Naburn, Barmby Moor, Filey; var. tenue Schimp., Dane's Dyke, 
Flamborough (must ne near this var. at “aero teste Dixon).—A. 
Juratzke Schimp., in abun > piroee n wet stones under willows, and 
on willows, by border of pond, Siadalthon, 6. fr. (teste Dixon and 
Braithwaite), the (agers now troyed; Dane's Dyke, Flam- 
borough, ¢.fr. (wi ery — nae cells like the A. Juratzke 
from Coatham Nari) Birdsall, S.—A. irriguum B. & §., Kirk- 
; Welto ; Goodm M. 
W.; Staddlnthorpe — Filey, Dane’s Dyke, Skipwith Common 
(the last a small form in abundance, and the one preeioe van 
Wilson as apt to be py for Hypnum elodes). — it 
. & §., Driffield, on edge of pool, the large form identical with 
Sussex specimens, and a small form (teste Dixon). 
Hypnum riparium L., Heslington Fields, Spruce; Brantin 
P.; Market Weighton and Pocklington, M.; Staddl aaa Hocalt 
Driffield : var. longifolium Schimp. ,Grimst on-in- Holderne —H., 
elodes Spruce, eae Moor and Market Weighton, ™. ; . Skip with 
Common in abundance.—H. polygamum eres bog in Heslington 
Fields, Spruce; in marsh, Naburn, creeping up bulrushes, ‘and 
covered with fruit ; a highly interesting ve: being polyandrous 
rather than polygamous, and having some leaves faleate; also 
easily liable to = mistaken for H. aduncum Hedw. (teste Bagnall and 
Dixon) ; it occurs in great abundance in this small marsh; Skip- 
ield 
Brough, P.; “Market Waighboni. e. fie, M; Buttercrambe, W.,; Fil ey, 
Nabum, and Es Common, the la st abundant — H. f ryso-- 
oo: typicum Ren., forma.faleata Ren., Naburn ; forma le L., 
in ditch by wood, Bariby; var. diversifolium Ren., M.8.; Selby, iz 
marshy field east ‘of Ouse. Group i fit var. polycarpon, 
sion at the foot of a bulrush; a special feature of this var. is pee 
very slight attachment of the set a, so that even in gently apes 
he moss in water the setz almost invariably float off :—var. 4 
medium Schimp., in marsh, Na burn. Group pseudo-fluitans alone —. 
Se soa a in_very otk eat abundance, covering a large. | 
marshy ground, and unmixed with other mosses, spit Som 
