IV. MUSCI. 
395 
Wilson’s ‘ Bryologia Britannica,’ 1 vol. 8vo, with 61 plates; Schimper’s ‘ Synopsis Mus- 
corum Europmorum,’ 1 vol. 8vo ; Hooker’s ‘ Musci Exotici,’ 2 vols. 8vo, with 200 plates; 
C. Mueller’s ‘ Synopsis Mnscornra Frondosorum,’ 2 vols. 8vo; Hedwig’s ‘ Species Muscorum,’ 
and Schwaegrichen’s Supplements to the same, in several volumes, 4to, with between 300 and 
400 plates. The New Zealand, Tasmanian, and Antarctic Floras, all expensive works in 
quarto, also contain very numerous plates of New Zealand Mosses. 
KEY TO THE GENERA OF NEW ZEALAND MOSSES. 
A. Acrocarpi . — Fruitstalk springing from the ends of the tranches ( lateral in one 
Fissidens, apparently lateral but really terminal in Sphagnum, Dicnemou, Hedwigia, 
Mielichoferia, etc.). 
I. Leaves inserted all round the stem or branches. {Distichous in Distichium.) 
§ Operculum adherent, never falling away. 
Capsule bursting by 4 lateral slits 1. Andreaa. 
Capsule bursting irregularly 3. Piiascum. 
§§ Operculum falling away. 
Division 1. Astomi. — Peristome 0. 
* Capsule sessile on a short white receptacle 2. Sphagnum. 
** Capsule on a distinct ( often very short) red, yellow, or brown fruitstallc. 
f Calyptra mitriform. Capsule erect. 
Capsule ohovate or clavate ; operculum conical. Leaf-cells large, lax 43. Physcomitrium. 
Capsule cylindric ; beak of operculum straight. Calyptra very large 21. Encalypta. 
Capsule ovoid, grooved. Calyptra plicate, lacerate at the base . . 27. Maceomitrium. 
Capsule globose, sessile amongst the perichmtial leaves .... 22. Heiywigia. 
ft Calyptra cucullate. 
a. Capsule globose. 
Stems \-2 in. long. Fruitstalk short. Operculum beaked . . .22. Hedwigia. 
Stems 2-6 in. long. Fruitstalk long, slender. Operculum beaked 23. Braunia. 
Stems a- j in. long. Fruitstalk 0. Operculum scarcely beaked . 24. Leptangium. 
* £1. Capsule not globose. 
Mouth with a membranous ring. Leaves piliferous ; cells large, lax 31. Leptostomum. 
Mouth without a membranous ring. Leaf-cells minute. 
Capsule erect, ovoid, not grooved. Operculum with an acute 
inclined beak 5. Gymnostomum. 
Capsule erect, ovoid, grooved or striate. Operculum with an acute 
inclined beak 30. Zygodon. 
Capsule suberect, ovoid-oblong, smooth. Operculum hardly 
beaked. Nerve of leaf very thick 18. Desmatodon. 
Division 2. Aploperistomi. — Peristome single. 
* Calyptra mitriform, plaited. Capsule erect. 
Capsule ovoid. Calyptra laciniate at the base 28. Macromitrium. 
Capsule pyriform. Calyptra crenate at the base, usually very hairy 29. Orthotrichum. 
** Calyptra mitriform, not plaited. Capsule erect. 
Calyptra split at the base 25. Grimhia. 
Calyptra fringed at the base 26. Racomitrium. 
# ** Calyptra cucullate, mitriform in one Tortula. ( See Grimmia, in **.) 
Peristome a membranous ring 31. Leptostomum. 
Peristome of distinct teeth. 
2 D 2 
