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Teeth free, long, and slender. 56. 55. Teeth connected by a tympanum,

short, obtuse. 60. S Leaves distichous

Distichium. XXIV. 56.

Leaves inserted in several rows. 57. 57.

S Teeth erect, straight, not contorted. 58.
| Teeth contorted. 59.

S Teeth fragile, deciduous 58.

Didymodon. XXV.
Teeth persistent

Trichostomum. XXVI.

Tortula. XXVII. { Capsule omanlong fruitstalk 59. Capsule immersed or shortly pedi. cellate

Cinclidotus. XXVIII.
Capsule angular, with a distinct apo-
60. physis

Polytrichum. XLVL.
Capsule not angular. 61.

Calyptra very hairy ; leaves firm, much 61, lamellated

Pogonatum. XLV.
Calyptra almost naked. 62.
Leaves crisped when dry; columella
not angular

Atrichum. XLIII. 62.

Leaves incurved when dry; columella
winged

Oligotrichum. XLIV.
Inner peristome a plicated conical
63. membrane

Buxbaumia. XLI.
Inner peristome not conical. 64.
64. {Outer teeth equidistant. 66.
Calyptra mitriform

Orthotrichum. XXXVII. 65. { Calyptra dimidiate

Zygodon. XXXVIII. Calyptra large, cylindrical, covering 66. the capsule

Encalypta. XXIX. (partly). Calyptra smaller, dimidiate. 67. Ş Calyptra inflated at base, rather large Funaria. LVIII.

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67.

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Amblyodon. LVII.
Meesia. LVI.

Calyptra inflexed at the base ; outer

teeth short. 69. 68.

Calyptra not inflexed at base ; outer

teeth long. 70. S Leaves loosely reticulated 69,

| Leaves of firm close texture, narrow 70.

S Capsule striated. 71.
2 Capsule smooth. 72.
Capsule globose; leaves papillose,

reticulated 71.

Capsule oval-oblong; leaves closely

dotted

Leaves very narrow, setaceous, or 72. linear. 73.

Leaves wider. 74.
Annual, without innovations; inner

peristome as in Bryum 73.

Stem with innovations; inner peri

stome without cilia

Bartramia. LXII.

Aulacomnion. XLVIII.

Leptobryum. L.

Orthodontium. XLIX.

74.

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Capsule cernuous or pendulous. 76.

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PLEUROCARPOUS. Peristome none 80.

Anæctangium. LXXIII. Peristome present. 81. 81.

ŞInner perist. obscure, rudimentary. 82.
Inner peristome evident. 84.

Outer teeth simple; calyptra small. 83. 82. Outer teeth bifid or perforated; ca

lyptra large ; fruitstalk short Leucodon. LXXIV.

Capsule on a very short pedicel; ca-
83.
lyptra hairy

Leptodon. LXXVI.
Capsule on a long fruitstalk; calyptra
naked

Pterogonium. LXXVIII. 84.

{ Calyptra dimidiate. 85.

{ Calyptra mitriform. 93. 85.

Inner peristome a reticulated cone Dichelyma. XC.
Inner peristome subdivided. 86.
Inner peristome 16 cilia, free to the

base. 88. 86.

Inner peristome a membrane divided

half-way into 16 segments. 87.

Capsule erect, symmetrical ; cilia 87.

mostly absent. 91.
Capsule cernuous, usually curved ;
inner peristome with cilia

Hypnum. LXXXIII.
Capsule on short curved fruitstalk ;
88. calyptra rather large

Antitrichia. LXXV.
Capsule on a long fruitstalk. 89.

Lid rostrate. 90.
89. Lid short, subrostellate; leaves con-
cave, almost nerveless

Cylindrothecium. LXXXI. Leaves octofarious, nerved

Anomodon. LXXVII. 90. Leaves complanate, undulated, seldom nerved

Neckera. LXXXV. s Leaves complanate, even

Omalia. LXXXIV. 91.

Leaves directed every way. 92.

Stem dendroid, growing from a creep92. ing rhizoma. 93. Stem not dendroid

Leskea. LXXXII.

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Climacium. LXXX.

Isothecium. LXXIX. Fontinalis. LXXXIX.

Lid adhering to the columella ; inner

peristome without cilia 93.

Lid not adhering ; inner peristome

with cilia
s Inner peristome a reticulated cone
94.
| Inner peristome subdivided. 95.

Capsule immersed; inner peristome
Capsule on a fruitstalk. 96.
Calyptra fringed; capsule erect; leaves

of close texture 96.

Calyptra not fringed ; capsule cer

nuous; leaves reticulated

95.

Cryphæd. LXXXVIII.

Daltonia. LXXXVII,

Hookeria. LXXXVI.

IN

ALPHABETIC LIST OF THE GENERA OF MOSSES NAMED

“ MUSCOLOGIA BRITANNICA” BY HOOKER AND TAYLOR, Ed. 2., AND IN HOOKER's “ BRITISH FLORA,” SHOWING THE CORRESPONDING GENERA OF THE PRESENT WORK.

The number appended to each name indicates the number of the genus, as it

stands in the systematic arrangement in each work.

ANDRÆA, 1. Andreæa, 1.
ANECTANGIUM, v. Hedwigia, 30. Hedwigidium, 31.
ANOMODON, XXVII. Anomodon, 77. Antitrichia, 75.
BARTRAMIA, XXXI. Bartramia, 62.
BRYUM, xxxv. and H. Br. Fl. 27. Bryum, 51. Mnium, 52. Lepto-

bryum, 50. Orthodontium, 49. Aulacomnion, 48. Amblyodon, 57.

Meesia, 56. Paludella, 55. BUXBAUMIA, XXX. Buxbaumia, 41. CINCLIDOTUS, XII. Cinclidotus, 28. CONOSTOMUM, x. Conostomum, 63. CYRTODON, Hook. Br. Fl. 11. Dissodon, 69. DALTONIA, XXVII. Daltonia, 87. Cryphæa, 88. DICRANUM, xviu. Dicranum, 16. Fissidens, 72. Leucobryum, 17.

Arctoa, 14. Campylopus, 20. Desmatodon, 23. DIDYMODOY, XXII. Trichostomum, 26. Distichium, 24. Desmatodon,

23. Ceratodon, 18. Cynodontium, 15. Didymodon, 25. DIPHYSCIUM, vii. Diphyscium, 42. ENCALYPTA, xiv. Encalypta, 29. ENTOSTHODON, H. Br. Fl. 23. Entosthodon, 59. FONTINALIS, xxix. Fontinalis, 89. Dichelyma, 90. FUNARIA, XXII. Funaria, 58. GLYPHOMITRION, xx. Glyphomitriuin, 33. GRIMMIA, xv. Grimmia, 33. Schistidium, 32. Campylosteleum, 8. GYMNOSTOMUM, vi. Gymnostomum, 5. Pottia, 21. Physcomitrium,

60. Zygodon, 38. Stylostegium, 12. Anodus, 11. (Edipodium, '70.

Anactangium, 73. HEDWIGIA, H. Br. Fl. 31. Ancectangium, 73. HOOKERIA, XXXII. Hookeria, 86. HYPNUM, XXXIII. Hypnum, 83. Leskea, 82. Isothecium, 79. Cli

macium, 80. Omalia, 84. Neckera, 85.

XX

LIST OF GENERA OF BRITISH MOSSER.

LEUCODON, XXI. Leucodon, 74.
NECKERA, XXVI. Neckera, 85.
DIPODIUM, H. Br. Fl. 4. Edipodium, 70.
ORTHOTRICHUM, xxv. Orthotrichum, 37.
PHASCUM, 111. Phascum, 4. Archidium, 3.
POLYTRICHUM, XI. Polytrichum, 46. Pogonatum, 45. Oligotrichum,

44. Atrichum, 43.
PTEROGONIUM, XVI. Pterogonium, 78. Leptodon, 76.
SCHISTOSTEGA, iv. Schistostega, 71.
SPHAGNUM, 11. Sphagnum, 2.
SPLACHNUM, ix. Splachnum, 66. Tetraplodon, 67. Tayloria, 68.

Dissodon, 69. TETRAPHIS, vil. Tetraphis, 39. Tetrodontium, 40. TIMMIA, XXXIV. Timmia, 47. TORTULA, XIII. Tortula, 27. TRICHOSTOMUM, XIX. Racomitrium, 34. Grimmia, 33. Ptycho

mitrium, 36. WEISSIA, XVII. Weissia, 6. Anacalypta, 22. Rhabdoweissia, 7. Didy

modon, 25. Seligeria, 10. Brachyodus, 9. Blindia, 13. Catoscopium,

64. Discelium, 65. Mielichhoferia, 54. Entosthodon, 59. Dissodon, 69. ZYGODON, xxiv. Zygodon, 38.

The following genera are additions to the known mosses of Britain since the publication of Muscol. Britannica :

Bartramidula, 61. Cinclidium, 53. Dicranodontium, 19. Cylindrothecium, 81. Orthodontium, 49. Paludella, 55.

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