moss. Stems procumbent, ^ to f inch long, flexuous,
extremity with the branches
erect, pale green.
Leaves more or less
close, in two opposite
rows, horizontal, plane or
slightly concave, roundish
ovate, half embracing
at the base,and decurrent,
variable at the apex (fig.
io6,after Martius). Those
nearest the base acutely
divided one-fifth down
into two acute segments,
slightly divaricate. Those
106. 108.
in the middle obtusely emarginate, segments
obtuse. Those near the apex entire and rounded.
Sometimes all are nearly entire throughout.
Colour, pale green. Perichætial leaves remarkably
variable, in some they are entire, in others
bifid, and entire, whilst others have the third
pair obtusely emarginate, the second pair deeply
emarginate, with acute points, and the first pair,
varying with two or three acute ovate segments,
unequally toothed. Stipules adpressed, oblong,
bifid or trifid, segments divaricate, slightly toothed
(fig. 108). Calyx obtusely triangular, mouth e x panded
and slit on one side. Elaters bispiral,
cells compact (fig. 107).
G en u s 22. CHILOSCYPHÜS, Dumort.
Involucre scale-like, many- leaved, e v e r y where
imbricate; perianth erect, cup-shaped.
terete, smooth, laterally 2-3 lo b ed ; calyptra
equal or shorter, torn at the a p e x ; capsule
four - valved, coriaceous, n a k e d ; elaters
double, naked, deciduous.— Dumort. S y ll Ju n g .
67 Hep. E u r . 100, t. 3 ,/ . 24.
Plants with subcurrent, flattened, undivided
leaves.
Chiloscyphus polyanthus, Linn.
Stem creeping, branched ; leaves rounded-
quadrate, entire and emarginate, imbricate ;
s t ipules linear, forked ; perianth short, hence
split ; laciniæ entire ; calypt ra exserted.
Jungermannia polyanthus, Linn. Sp. 1597 ;
Hook. Br. Jung., No. 62. Marsupella polyan-
thos, Dumort. Comm. p. 1 14 . Chiloscyphus
polyanthos, Dumort . S y l l . Jung. p. 67, t. i,
f. 9 ; C o o k e Hep. f. 106, 107.
Moist and very wet places. (Fr. Apr. May.)
T h e two forms of this species are :—
var. /3 rivularis, Nees. T h e most common
form and the most typical.
var. y pallescens. Linden. O f which Dr.
Car r ington wr i te s that he sees no valid distinction
be twe en this and C. polyanthus.
Jungermannia pallescens, Nees Hep. Jav.
p. 25. Chiloscyphus pallescens, N e e s Hep.