Hepatic(B.~] 



PLOEA OP NEW ZEALAND. 



147 



The New Zealand specimens of this species differ a little in habit from those from Lord Auckland's Islands, on 

 account of the latter having grown in closely-matted patches. 



2. Mastigobryum Colensoanum, Mitten; caule procumbente dichotomo-prolifero stolonifero, foliis im- 

 bricatis oblongis sinu acuto subinsequaliter bidentatis, amphigastriis parvis obtuse tricrenatis. (Tab C 

 Kg- 3-) 



Hab. Northern Island : growing amongst Saccogyna australis, Tararaa, Colenso, 



Pallide viride, tenellum. Caulis pollicaris. Folia explanata, oblonga, margine dorsali parum arcuato, ventrali 

 rectiusculo, apice bidentato, dente ventrali aliquantulo minore, e cellulis majusculis lsevibus areolata. Amphigastria 

 saule paulo angustiora, appressa. 



A small species, readily distinguished from all its congeners by its nearly equally bidentate leaves, which have 

 the lesser tooth on the ventral side, and not, as occurs in M. anisostomum and the other bidentate-leaved species, on 

 the dorsal, nor are the leaves papillose.— Plate C. Pig. 3 :— 1, a plant, natural size,- 2, a portion of the stem, with 

 leaves and stipule ; 3, portion of leaf with cells : — both magnified. 



3. Mastigobryum convexum, Lind., 6. L. et N. Syn. Hep. p. 215. Jungermannia convexa, Tkmi., 

 Prodr. Fl. Cap. p. 173. 



Hab. Northern Island : growing amongst Jungermannia monodon, Tararaa mountains, Colenso. 



This small species has been sent from Australia by Mr. Bidwill, and is stated to grow in Peru; there is how- 

 ever a very closely-allied species, to which the Peruvian specimens may possibly belong*. M. tenaeifolium (Hook. 

 fil. et Tayl.), Jungermannia tenacifolia, Plor. Antarct. tab. Ixiv. fig. 4, belongs either to this group of the genus, or 

 to that with an oblique notch at the apices of the leaves ; it was gathered at Gape Horn, mixed with J. madida, and 

 in Lord Auckland's Islands. 



4. Mastigobryum affine, Mitten; caule repente ramoso stolonifero, foliis imbricatis oblique ovatis apice 

 oblique truncatis et obtuse tridentatis, amphigastriis transverse oblongis apice spinoso-pluridentatis basi 

 utrinque cum foliis conjunctis. (Tab. C. Fig. 4.) 



Hab. Northern Island : with M. convexum, amongst Jungermannia monodon, Tararaa and Tehawera 

 mountains, Colenso. 



Fusco-viride. Caulis pollicaris, dichotome ramosus. Folia arete imbricata, margine dorsali arcuato, ventrali 

 subrecto, apice oblique truncata tridenticulata. 



Very nearly allied to M. integrum, Nees et Mont., a species found in Mauritius, but differing in its spinoso- 

 dentate stipules, and obliquely truncate leaves.— Plate C. Pig. 4 :— 1, plants, natural size; 2, a portion of the 

 stem with leaves and stipules ; 3, portion of leaf with cells :— both magnified. 



5. Mastigobryum Taylorianum, Mitten; caule repente subramoso, foliis laxe imbricatis tridentatis ob- 

 lique ovatis margine dorsali parum arcuato ventrali subrecto basi medio cellulis elongatis majoribus vittatis, 

 amphigastriis rotundo-quadratis acute quadridentatis.— M. monilinerve, Tayl. in Kerb. Koolc. {non Lehm. et 

 Lind.) (Tab. C. Fig. 5.) 



Hab. Northern Island : forests, Tehawera, etc., Colenso. 



Viride. Caulis gracilis, efiagellaris ? Folia explanata, acute dentata. Vitta e seriebus cellularum formata, 

 ante apieem evanescens. 



* M. RicJiardianum, Mitten ; caule repente ramoso, foliis imbricatis oblique ovatis linea cellularum elongatarum 

 vittatis apice obtusis rotundatis minute tridenticulatis margine dorsali arcuato ventrali recto, amphigastriis parvis 

 subquadratis acute quadridentatis. 



Hab. Ad Pretum Magellanicum {Herb. Richard). 



M. convexo affine ; differt, foliis magis ovatis, patentibus, margine ventrali rectiore, et amphigastriis quadriden- 

 tatis non quadrilaciniatis. 



