54. Genus PALUDELLA, Ehrh. 
Whole Plant — Perennial, erect, densely beset with brown radicles, csespitose, growing in boggy places in greenish or 
yellowish patches, having terminal fruit, varying in- height from 2 inches to 6 inches. 
Stem— Simple, elongated. 
Leaves — Crowded, squarrose, recurved, amplexicaul, ovate, lanceolate, carinate, spreading, margin recurved; nerve 
reaching nearly or quite to the apex, serratulate at the apex; areolae round, opaque in the upper part of the leaf ; 
basal cells elongate. 
IiMl'LORESCENCE — DioicOUS. 
Barren Mower (Antheeidia) — Terminal, with clavate paraphyses. 
Fertile Flower (Archegonia) — 
Vaginula — Oblong. 
Capsule — Solitary, terminal, smooth, slightly bending, oblong, with a short neck on a long fruit stalk. 
Calyptra — Cucullate. 
Operculum — Small. 
Peristome — As in Bryum. 
Annulus — Large. 
Spores — Eather small. 
General Habitat — Boggy places, local, rare. Fruit : — [* See below.] 
Species Illustrated — Paludella squarrosa (Bridel). 
Reference to Plate — a, Plant, natural size; aa, Portion of same, X 2-in. ; l, Stem leaves, X 1-in. ; e, Apex of leaf, X 
:|--in. ; d, Basal cellules, X i-in. 
This genus is represented in Britain by the species figured. The fruit has not yet been discovered in Britain. 
* TThe drawing is made from a specimen kindly given me by Mr. C. P. Hobkirk, and gathered in Finland by Mr. E. F."l 
L Lackstrom. J 
55. Genus MEESIA, Eedwig. 
Whole Plant — Perennial, a fine handsome genus, erect, branched, the fructification terminal, with a long fruit stalk, height 
of the plant varying from 1 inch to 3 inches. 
Stem — Elongated, ceespitose, erect, covered with radicles. 
Leaves — Lanceolate, or subulate, obtuse, erect, crowded, with a strong nerve reaching near the apex; areolae small, 
roundish, or quadrate in the upper part of the leaf, cells elongated at the base. 
Inflorescence — Dioicous, synoicous, or monoicous. 
Barren Floiver (Antheridia) — Numerous, oblong, paraphyses clavate. 
Fertile Flower (Archegonia) — Gemmiform, few. 
Vaginula — Oblong. 
Capsule — Curved, clavate, the mouth small, the neck long and tapering into a long fruit stalk, colour chestnut 
brown. 
Calyptra — " Conico-submitriform, fugacious." 
Operculum — Conical, small. 
Peristome — Double, with 16 short, obtuse, outer teeth, having a conspicuous medial line ; inner teeth much 
longer than the outer ones, being a membrane divided into 16 narrow processes. 
Annulus — Small. 
Spores — Large, smooth, yellow. 
General Habitat — Wet places, near springs, in mountainous situations. Fruit : — Summer. 
Species Illustrated — Meesia uliginosa (Hedw.). 
Reference to Plate — a. Plant, natm'al size; b, Stem-leaf, X 2-ia. ; hi, Branch-leaf, X 2-in.; c, Apex of leaf, X i-in. ; d, 
Basal cellules, X i-in. ; e, Outer and inner teeth of peristome, x 1-in.; /, Capsule, X 2-in.; h, 
Spores, X i-in. 
This genus is represented in Britain by the species figured. 
56. Genus AMBLYODON. 
Whole Plant — Perennial, gregarious, erect, growing principally in mountainous districts ; fruit terminal, varying from 1^ 
inches to 4 inches in height. 
Stem — Short, radiculose, lower part of the stem destitute of leaves. 
Leaves— Lanceolate, spreading, crowded above; lower leaves more distant; nerve ceasing below the apex; areolae large, 
rhomboid, denticulate at the apex. 
Inploebscence — Monoicous. 
Barren Flower (Antheridia)— Numerous, paraphyses clavate. 
Fertile Flower (Archegonia) — Styles long. 
Vaginula — • 
Capsule — Solitary, clavate, suberect, on a long seta, neck tapering into the fruit stalk, colour chestnut-brown. 
Calyptra — Small, " conico-mitriform." 
Operculum — Conical, small. 
Peristome — Double, outer teeth reddish-brown, similar to Bryum, shorter than the inner ones; iimer teeth 
divided into 16 carinate processes. 
Annulus — Small . 
Spores — Large, smooth. 
General Habitat — Wet places in mountainous districts. Fruit : — June, July. 
Species Illustrated — Amblyodon dealbatus (P. Beauv.). 
Pieference to Plate — a. Plant, natural size; 6, Stem leaf, X 2-in.; c. Apex of leaf, X i-in.; d. Basal cellules, X J-in., e, 
Operculum, X 1-in.; /, Capsule, X 2-in.; g, Outer and inner teeth of peristome, x 1-in.; h, Spores, 
X i-in. 
This genus is represented in Britain by the species figured. 
18 
