182. H. tu rg e s c e n s , Scliimp. Cespitóse, in deep soft
tumescent dark yellow and greenish tufts ; stems slender, erect,
eradiculose, with few fastigiate julaceous branches and few
short thick or long slender branchlets : leaves glossy, broadly
oblong, deeply concave, subcuciillate at the apex, abruptly
short-apiculate; borders erect aud entire, not decurrent nor
excavate at the angles ; costa short, bifurcate ; cells narrow,
short, hexagonal, vermicular in the upper part of the leaves,
broader toward the base, large, rectangular and quadrate at the
angles: male flowers minute. — Syn. ed. 2, 794.
Hab. Davis Straits {Taylor), according to Mitten (Journ. Linn. Soc.
viii. 42).
183. H. b a d ium , Hartm. Plants erect or prostrate, dark
reddish brown below, orange-yellow above ; leaves imbricate,
short, solid, glossy, greenish yellow wlien young, gradually
darker toward the base of the stems, broadly ovate, acute or
acuminate, very entire and ooncave ; costa ascending to above
the middle, dissolving or bipartite at the apex ; areolation thick,
solid, flexuous-linear, with a few very small quadrate alar cells ;
perichætium long, imbrioate, the leaves ovate, long-lanceolate,
solid, thinly costate: capsule small, ceiiiuous, turgid-oval, thin,
on a slender pedicel, slightly constricted under the orifice when
dry. — Skand. FI. ed. 5, 332 ; Schimp. Syn. 649. Amhlystegium
badium, Lindb. Muse. Scand. 83.
H a b . Labrador {J. A. Allen), sterile.
A beautiful species, described by Scbiiiiper from specimens communicated
by Hartmann. Tlie capsules were deoperculate. It is considered
by Mueller (Syn. ii. 324) to be a form of H. revolvens.
SuBGENus XXVI. SCORPIDIUM.
Plants of great size, with fastigiate branches and few branchlets.
Leaves turgid, imbricate, secund, broad-ovate, soft, sub-
ecostate ; areolation very narrow. Flowers dioecious.
184. H, SCOrpioides, Linn. Tufts wide and deep, soft,
dark green or reddish brown; plants flexuous, erect or prostrate
; branches dichotomous or fastigiate, distantly and unequally
ramnlose ; branches and branchlets arcuate or incurved
at the apex : leaves crowded, turgid, imbricate-secund, those of
the branches sometimes falcate, narrowed at base, broadly ovate,
obtuse or short-pointed, concave, soft; costa simple or double
short, obsolete ; areolation very narrow, a little enlarged at the
base and angles ; perichætial leaves sharply acuminate, deeply
sulcate, with a very slender pale costa: capsule incurved, cernuous
or arcuate, oblong-cylindrical, becoming much arched,
plicate aud constricted under the orifice when dry ; lid convex-
conical, acute ; peristome perfect ; cilia two or three, nearly as
long as the slightly perforated segments ; annulus very large,
triple. — Spec. PI. 1127; Bryol. Eur. t. 612. Amblgstegium
scorpioides, Lindb. 1. c.
Ha b . Cranberry marsbes, Northern Obio {Lesquereux); Canada
{Macoun).
SuBGENus XXVII. PLEUROZIUM.
Plants increasing by annual arcuate branches or by erect
rigid innovations, fasciculate, pinnate and bipinnately ramulose.
Stem-leaves larger than those of the branches and different in
shape ; paraphyllia numerous, large, pluripartite.
185. H. splendens, Hedw. Tufts loose, rigid, pale olive
green ; plants solid, the old ones many times arcuate ; branchlets
long, filiform : hasilar leaves distant, small and squamifoi'm,
the upper lai'ger, loosely imbricate, broadly oblong-ovate, narrowed
into a long flexuous point, obsoletely bicostate, planoconcave,
serrulate ; branch-leaves smaller, oyal-oblong, shorter-
j)ointed ; inner ]>erichoetial leaves narrowly acuminate, suberect
or recurved at the apex : calyptra large, long-persistent : capsule
turgid-ovate ; operculum large, rostrate. — Spec. Muse. 262,
t. 67. II. proliferum, Linn. Spec. PI. 1125. llylocomium
splendens, Bruch & Schimp. Bryol. Eur. t. 487. llylocomium
proliferum, Lindb. Muso. Scand. 37.
Var. com p a c tum . Stems compact, prostrate, with short
branches and filiform or attenuated branchlets : stem-leaves
short-pointed.
H a b . Deep pine woods, in mountains or northward; very common.
The variety near Forteau, Labrador ( J. A. Allen).
186. H. um b ra tum , Ehrh. Tufts loose, dark or blackish
green, rigid ; plants irregularly bipinnate ; branchlets close,
subfasciculate, unequal, arcuate to one side ; stems fragile,
covered with paraphyllia : stem-leaves long, decurrent at base,
broadly ohcordate, abruptly lanceolate-acuminate, with a long
double costa, deeply sulcate, serrate all around, with a few