IV. MU3CI. 
397 
Calyptra mitriform, plicate. Capsule erect ; beak of operculum long, erect. 
Calyptra with 4 or more inflexed lobes at the base 27. Schlotheimia. 
Calyptra not inflexed, but laciniate at the base 28. Macromitrium. 
Calyptra (usually very hairy) not inflexed, crenate or split at the 
base 29. Orthotbichum. 
** Calyptra cucullate. 
a. Leaves long, subulate, serrate ; cells minute. Teeth incurved. 
Capsule globose, furrowed ; operculum nearly flat 41. Bartramia. 
Capsule oblong, erect, bidden by the leaves ; operculum convex, 
apiculate 40. Cryptopodium. 
13. Leaves short, entire; cells minute. Capsule erect, ovoid, 
grooved ; outer teeth recurved when dry 30. Zygodon. 
y. Leaves flaccid ; cells large, lax. Capsule pyriform, inclined 
or pendulous ; mouth smalt; teeth horizontal 42. Funaria. 
8. Leaves various. Capsule cylindric, pyriform or clavate, suberect 
inclined or pendulous ; outer teeth erect or spreading. 
f Capsule suberect. 
Capsule narrow, cylindric, furrowed 32. Aulacomnion. 
Capsule oblong, furrowed 33. Orthodontium. 
Capsule clavate, pyriform, not furrowed 34. Brachymeniuh. 
Capsule clavate, pyriform, curved, gibbous, with a small oblique 
mouth 38. Meesxa. 
ft Capsule horizontal or drooping, smooth. 
Shoots from the sides or tops of the stems. Operculum shortly 
beaked or not beaked 36. Bryuh. 
Shoots from the bases of the stems, often creeping. Operculum 
with a long beak. Leaves large, flaccid 37. Mnium. 
II. Leaves distichous or 2-3 furious. ( See Distichium in I.) 
Peristome 0. Leaves 3-farious, of 2 forms, the lateral distichous . 69. Calomnion. 
Teeth 16, 2-fid, spreading when dry. Leaves distichous, equitant . 7- Fissidens. 
B. Pleurocarpi. — Fruitstalk springing from the sides of the branches. ( See Fissidens 
adiantoides and Sphagnum, Dicnemon, Mielichoferia and Hedwigia, which have apparently 
lateral fruitstalks under A.) 
Division 1. Astomi. — Peristome 0. 
Leaves imbricate all round the stem . . . 47. Ancectangium. 
Leaves distichous . 49. Aulacopilum. 
Division 2. Aplopeuistomi. — Peristome single. 
* Leaves distichous or tristichous. 
Calyptra mitriform, hairy, torn at the base. Teeth 16, entire. 
Leaves complicate, keeled, shining 58. Phyllogonium. 
Calyptra cucullate. Teeth 16, membranous, united at the base. 
Leaves piliferous, papillose 66. Hymenodon. 
Calyptra cucullate. Teeth 16, 2-fid, red. Fruitstalk moderate . 7. Fissidens. 
Calyptra mitriform. Teeth 16, 2-fid, red. Fruitstalk very short . 8. Conomitrium. 
Calyptra mitriform, lacerate at the base. Teeth 1 6, membranous, 
united at the base. Leaves ciliate 67. Hypopterygium. 
** Leaves not distichous. Calyptra cucullate. 
Teeth 16, short, membranous entire. Calyptra clothed below with 
long hairs 52. Leptodon. 
Teeth 16, 2-3-partite, united at the base 51. Leucodon. 
Teeth 16, in pairs, inflexed, entire 50. Fabronia. 
Teeth 16, short, free, lacerate at the apex 57. Mesotus. 
