75. Genus LBPTODON, Bridel. 
Whole Plant — Perennial, creeping, with crowded incurved brandies, which almost conceal the frnit. 
Stem — Creeping, with pinnate branches, length from 1 inch to 3 inches. 
Leaves — Ovate, round and obtuse at the apex, nerve reaching nearly to the apex, areolae small, round, dot-like. Pericbaa- 
tial leaves erect, lanceolate. 
Inflokescence — Dioicous. 
Barren J'Zower (Anthekidia). 
Fertile Flower (Archegonia) — Few, with filiform paraphyses. 
Vaginula — Oblong, hairy. 
Capsule — Oval, on a short fruit stalk, red-brown. 
Calyptra — Cucullate, very hairy, yellowish. 
Operculum — Conical at the base. 
Peristome — Single, composed of 16 red lanceolate teeth with a distinct medial line. 
Annulus — None. 
Spores — Large, greenish. 
Geneeal Habitat — Growing on the bark of trees. Fruit : — April. 
Species Illustrated— Leptodon Smithii (Bridel), Pterogonium Smithii, Hook, and Tayl. (tab. xiv.) 
Reference to Plate — a, Plant, natural size; b, Stem leaf, Xl-in. ; b&, Perichcetial leaf, X 1-in. ; c. Apex of leaf, x i-in. ; 
e. Teeth of peristome, X i-in. ; /, Capsule with Perichastial leaves, + 2-in. ; /, Capsule and Operculum, 
X2-in. ; /f', Portion of capsule and peristome, X 1-in.; g, Calyptra, X 1-in.; h, Spores, X i-in. ; i, Arche- 
gonia and paraphyses, X i-in. 
This genus is represented in Britain by the species figured. 
76. Genus ANOMODON, Eooh & Tayl. 
Whole Plant — Perennial, erect branched ; from 2 inches to 3 inches in height, light green when young, fruit lateral. 
Stem — Simple, loosely tufted, erect, irregularly branched. 
Leaves — Ovate, lanceolate, obtuse or pointed, entire, nerve pellucid, reaching nearly to the apex, areote, small, round, or 
quadrate, opaque. 
iNrLOEESCENCE — Dioicous. 
Barren Flotver (Antheridia) — Gemmiform. 
Fertile Floiver (Archegonia) — Gemmiform. 
Vaginula — Oblong. 
Capsule — Erect, cylindrical, bright chesnut brown colour, on an upright fruit stalk. 
Calyptra — Dimidiate membranous, pale. 
Operculum — Conical at the base, with a rostellate beak. 
Peristome — Double, composed of 16 yellow lanceolate outer teeth, and 16 short ciliary iiroccsses, adhering to 
the inner teeth. 
Annulus — Small. 
Spiores — Small, yellow. 
General Habitat — On trees and rocks. Fruit ; — Autumn. 
Species Illustrated — Anomodon viticulosus (Hook, and Tayl.). 
Reference to Plate — a, Plant, natural size ; 6, Stem leaf, X 2-in. ; c, Apex of leaf, X i-in.; J, Central cells, X i-in.; 
e, Teeth of peristome, X i-in.; ee, Calyptra, X 1-in.; /, Capsule, X 2-in.; ff, Portion of Capsule, 
X 1-in.; g, Operculum, X lin. ; h, Spores, X j-in. 
This genus is represented in Britain by three species. 
77. Genus HABEODON, Schp. 
Whole Plant — Small, creeping, with irregular erect branches ; colour of plant dark green ; growing on the bark of trees 
or bushes ; about -j-in. in height. 
Stem — Sub-erect or creeping, branched. 
Leaves — Imbricated, entire, acuminate, nerve short or nerveless, areolation opaque, cells small, quadrate at the apex, round 
or dot-like in the centre and base of leaf, marginal cells quadrate or oval, dark green. 
Inflorescence — " Dioicous." 
Barren Flower (Antheridia). 
Fertile Floiver (Archegonia). 
Vaginula. 
Capsule — " Oval-oblong, erect, striate." 
Calyptra. — " Large." 
Operculum — " Conical erose." 
Peristome — " Single, teeth 16, simple, linear, inserted below the mouth of the capsule " (Hobkirk's Synop., pp. 17). 
Annulus. 
Spores. 
General Habitat — " Trunks of elm or white thorn." Fruit: — 
Species Illustrated — Habrodon Notarisii (Sohimper), Clasmatodon perpusillus (Lindberg). 
Reference to Plate — a, Plant, natm-al size; b, Leaves, X 1-in.; hh, Portion of branch and leaves, X 2-in.; c. Apex of 
leaf, X i-in. ; d, Central and marginal cells of leaf, X i-in. 
This genus is represented in Britain by the species figured. 
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