148 



ELORA OP NEW ZEALAND. 



[Hepaticm. 



A small species, with much of the habit and appearance of M. . monilinerve, but in size nearer to M. convemm; 

 from the first it differs in the form of its leaves and stipules, and from the last in its narrower and acutely-toothed 

 leaves.— Plate C. Pig. 5 :— 1, a stem, natural size; 2, a portion of the same with leaves and stipules; 3, portion 

 of leaf with cells : — both magnified. 



6. Mastigobryum monilinerve, Nees, G. 1. et N. Syn. Hep. p. 223. Jrungeraiannia monilinervis, 

 Lehm. et Lind. in LeJim. Tug. pi. 4<.p. 56. 



Hab. Southern Island : growing on Plagiochila ,annotina, Lyall. 



7. Mastigobryum Novce-Hollandia, Nees, Flor. Aniarct. p. 159. G. L. et N. Syn. Hep. p. 221 et 



717. 



Hab. Northern and Middle Islands : on decayed wood, Hawke's Bay, Colenso. Port William, Port 



Preservation, etc., Lyall. 



A Lord Auckland's Group and Tasmanian plant. All the New Zealand specimens have the apices of their 

 leaves, as well as the teeth themselves, minutely denticulate, and ought therefore to be considered as the var. y of 

 the ' Synopsis Hepaticarum.' In Dr. Greville's specimens, referred in the ' Synopsis' to the var. a, with the teeth 

 and apices of the leaves entire, these parts are certainly denticulate. 



8. Mastigobryum Novee-Zelandice, Mitten; caule procumbente dichotomo, foliis imbricatis oblique 

 ovatis divergentibus apice tridentatis margine dorsali arcuato ventrali sinuato, amphigastriis quadratis paten- 

 tibus apice crenulatis basi utrinque cum foliis conjunctis. (Tab. C. Kg. 6.) 



Hab. Northern Island : forests, Tehawera and Tararua, growing with Saccogyna australis, Colenso. 



Pusco-viride. Caulis bi-tripollicaris, flagellifer. Folia deflexa, subopposita, integerrima. 



In size and habit allied to the European M. trilobatum, but in the united bases of its stipules and leaves, to M. 

 Nova-Bollandim ; differing however from this last, as well as from M. involutum, in its quadrate stipules.— Plate C. 

 Fig. 6 :— 1, a plant, natural size; 2, a portion of the stem withleaves and stipule ; 3, portion of leaf with cells :— 

 both magnified. 



9. Mastigobryum involutum, Lind., Hook. fil. et Tayl. Flor. Aniarct. p. 159. G. L. et N. Syn. Hep. 

 p. 220 et 717. Herpetium involutum, Mont. Voy. au Pole Sud, t. 18./. 2. 



Hab. Middle. Island : Milford Sound, Lyall. 

 Also found in Lord Auckland's Group. 



Gen. XI. MICROPTERYGIUM, G. L. et N. 



1. Micropterygium nutans, Mitten. — Jungermannia (Mastigobryum) nutans, Flor. Aniarct. p. 160. 

 t. 65./. 8. G. L. et N. Syn. Hep. p. 219 et 717. 



Hab. Northern Island : forests of Titiokura, Colenso. 



Also a native of Lord Auckland's Group. The habit is so nearly that of the other species of the present 

 genus that it has been thought advisable to remove it from Mastigobryum, notwithstanding that the leaves want 

 the keel along their under surfaces and are bifid at their apices. At first sight the leaves appear caiinate from the 

 transparency of the larger cells near their bases. The perianths are large, lanceolate, and trigonous above ; they 

 appear to spring from the stem just at the angles of the leaves and stipules. 



Gen. XII. ISOTACHIS, Mitten. 

 Perianthium terminaie, tubulosum, ore contracto, dentato. Caulis erectus, innovationibus ramosus.— 

 Folia incula, amphigastriaquefere conformia, conduplicala, sape sermlaia. 



u 



