644 
MUSCI. (mosses.) 
17. Orthotrichum. Calyptra mitriform, hairy, plaited. 
** ++ Capsule unsymmetrical, and inclined to one side. 
= Inner peristome a plaited cone. 
31. Buxbaumia. Capsule pedicelled. Lid and calyptra minute. 
32. Diphyscium. Capsule sessile. Lid and calyptra conspicuous. 
== == Inner peristome a membrane cut into 16 cilia. 
33. Bartramia. Capsule globose, striate. 
37. Aulacomnion. Capsule oblong, ribbed. 
36. Bryum. Capsule elongated-pear-shaped : peristomes equal. 
35. Meesia. Capsule as in the last: outer peristome shorter. 
9. Funaria. Capsule pear-shaped : teeth all united at the apex. 
= = ^ Inner peristome a membrane cut into 64 cilia. 
38. Timmia. Cilia united at their ape* in fours. 
II. PLEUROCARPI. — Fruit lateral. (Peristome double.) 
* Capsule symmetrical, erect. Teeth 16. 
■*“I nner peristome a fugacious membrane. 
39. Pterigonium. Calyptra cuculliform, smooth or hairy. 
40. Leptodon. Calyptra half-mitriform, hairy. 
41. Leucodon. Calyptra half-mi triform, not hairy. 
Inner peristome a tessellated membrane. 
49. Fontinalis. Calyptra mitriform. Capsule sessile. 
50. Dichelyma. Calyptra cuculliform. Capsule pedicelled. 
I nner peristome a membrane cut into 16 cilia. 
48. Climacium. Cilia from a narrow plane base, scalariform. 
ao nacamptodon - Cilia necklace-shaped from a narrow plane base. 
42. Neckera. Cilia keeled, from a narrow base. Calyptra mitriform. 
. sothecium. Cilia as in No. 42. Calyptra cuculliform. 
44. Leskea. Cilia from a broad plaited base. Calyptra cuculliform. 
* * Capsule unsymmetrical, nodding. Teeth 16. 
b. Hypnum. Calyptra cuculliform. Inner peristome cut into 16 cilia. 
47. Hookeria. Calyptra mitriform. Peristome as in the last. 
* * * Fructification unknown. 
51. Leucophanes. 52. Phyllogorium. 
Phascaceje. 
1. ARCIUDllJM, Bridel. Archidium. 
Calyptra laciniately ruptured in the middle, the lower part per¬ 
sistent. Capsule terminal, spherical, indehiscent, nearly sessile 
upon a hemispherical vaginula. Sporules large, dotted. Inflores¬ 
cence monoecious ; sterile flower axillary, gemmiform. (Dimin¬ 
utive of dpxq, beginning; these minute and simplest of Mosses 
first appearing where pools dry up in summer.) 
