I )
:li
;u ;
S e m e s II. CLADOCAEPI. Fruit terminal on short lateral branches.
T r i b e XVI. FONTINALEAl. Aquatic plants, rooting at base only,
floating. Leaves thin. Flowers dioecious. Calyptra cucullate.
Teeth of the double peristome linear; inner membrane divided
into long cilia forming a latticed cone by transverse partitions, or
the cilia'free, longer than the teeth, appendiculate.
111. A n t it r ic h ia .
Cilia united into a cone by transverse parti-
100. P o n t in a lis .
Cilia simple or appendiculate, latticed in the
upper part only. 101. D ic h e lym a .
S e r i e s III. PLEUROCARPI. Fruit lateral, sessile upon the stems
or branches. Flowers in axillary buds.
T r i b e XVII. NECKEREA:. Primary stems creeping; the secondary
erect or creeping, with dichotomous or pinnate branches. Leaves
smooth, minutely areolate. Capsule generally immersed in the
perichsetium. Calyptra cucullate-conical, often hairy. Peristome
simple or double, rarely absent.
Peristome double; teeth linear-lanceolate;
segments very narrow, linear; cilia none.
Calyptra rough or papillose. 102. C ryp h sea .
Peristome simple. Vaginule and calyptra
liairy. 103. L e p to d o n .
Secondary stems dendroid; parapbyllia multiform.
Peristome double; segments long-
linear, enlarged and carinate at base, witli
or without cilia. 104. A l s ia .
Plants erect or pendent. Leaves flat, glossy.
Peristome double; inner membrane divided
into filiform segments. 105. N e c k e r a .
Plants distichous. Leaves diverging side-
wise, cultriform. Capsule long-pedicellate.
Peristome double. 106. H om a lia .
Plants long, pendent. Leaves cordate-clasp-
ing. Peristome double. 107. M e te o r inm .
T r i b e XVIII. LEUCODONTEA:. Primary stems creeping; the secondary
erect or pendent, simple or ramose. Leaves solid_, sub-
scarious, plicate lengthwise; areolation in distinct rows, punctiform-
angular. Calyptra large, cucullate.
Leaves decurrent, not costate. Peristome
simple; teeth distantly articulate, 2-3-cleft
at apex.
Leaves slightly papillose on the back. Peristome
double. Teeth short; segments short,
imperfect; cilia none.
Leaves scarlous, glossy; areolation very small,
smooth. Calyptra sparingly hairy. Peristome
double; segments half as long as the
teeth. Cilia none.
108. L e u c o d o n .
109. P te r ig y n a n d r um .
110. P t e r o g o n ium .
Calvptra smooth. Peristome double. Teeth
narrowly lanceolate-subulate; segments
shorter than the teeth, subulate; basilar
membrane none.
T r i b e XIX. HOOKERIEA. Plants small, soft, bypnoid; areolation
large. Calyptra coiiical-mitrate. Peristome double.
H o o k e r ia .
1«. P f r y k o p t e l l» » .
Tribe XX. FABROXIEAl. Plants very small. Leaves thin, delicate,
eillate-dentate or entire. Capsule pyriform, with a distinct collum.
Calyptra cucullate, split on one side. Peristome simple or none.
Leaves delicate, not costate, dentate-ciliate.
Calyptra thin.
Plants more robust. Leaves entire, thinly
costate to the middle. Peristome double;
segments shorter than the teeth.
Plants very small. Leaves squarrose when
moist, entire. Peristome simple.
: Plants minute. Leaves minutely serrulate
above. Capsule thin, constricted under the
orifice. Teeth of the simple peristome very
irregular.
’ T r i b e XXL LESKEACEA. Primary stems creeping. Leaves soft,
1 areolation minute, hexagonal, papillose and chlorophyllose above,
; hexagonal-rectangular below. Capsule symmetrical, erect or cm veL
i Peristome double; teeth linear-lanceolate, subulate, segments
shorter than the teeth; cilia none or rudimentary, raiely pertect.
; Plants glaucous yellow. Leaves pellucid;
; cells conspicuously papillose. Capsule cy-
:■ lindrieal, erect; membrane broad, carinate,
i without segments.
; Branches julaceous. Leaves glaucous green,
> closely imbricate. Capsule suberect, long-
) pedicellate, inflated at the collum. Peri-
I stoine double, perfect.
Plants small. Leaves soft, costate, papillose
on both faces (except in one species). Capsule
oblong, erect or subarcuate, thin. Segments
of tiie peristome narrow, linear; cilia
none.
Leaves with a minute chlorophyllose puncti-
forin obscure areolation, papillose on both
faces. Capsule erect, cylindrical-oblong,
regular. Teeth pale; segments short, narrowly
linear.
114. P a b r o n ia .
115. A n a c am p to d o n .
116. H a b r o d o n .
117. C la sm a to d o n .
118. T h e lia .
119. M y u r e lla .
120. L e s k e a .
121. A n om o d o n .
T r i b e XXII. ORTHOTHECIEA. Plants in wide yellow m^s. Leaves
smooth; areolation narrowly rhomboidal or linear, quadrate at tue
basal angles. Capsule erect, symmetrical. Peristome double.
l!ll: