292 Transactions. — Botany. 



arched ; truncate, trifid, and bifid on branchlets intermixed ; 

 teeth long, acute ; sinuses broad and somewhat irregular ; cells 

 oval - orbicular, distinct, guttulate, uniform. Stipules free, 

 quadrate, rather large, wider than stems, 4-6-toothed ; teeth 

 reddish, very cellular', reticulate; cellules minute, clear and 

 adjoining above, oblong-orbicular, distinct, and crowded at base. 

 Flagellffi few, stoutish, very scaly. 



Hah. On trunks of fern-trees, forming large thick patches ; 

 dense forests near Norsewood, County of Waipawa ; 1886 : 

 W.C. 



12. M. macrodontwn, sp. nov. 



Plant procumbent, small, sub 1-inch long; stems stoutish, 

 forked ; branches short, J^th inch wide with leaves, dusky dark- 

 green. Leaves opposite, close-set and imbricate, oblong, almost 

 sub-quadrilateral, very broad at ventral base to meet stipule ; 

 the dorsal bases completely covering the stem and overlapping 

 each other, shghtly arched and falcate ; margins entire and 

 slightly uneven near apex, trifid ; teeth irregular, large, broad, 

 each containing several lateral cells, with usually 2 smaller 

 teeth in each sinus ; cells minute, broadly oval, distinct (guttu- 

 late), uniform, regularly disposed in lines. Stipules free, rather 

 large, sub-quadrate, broadest at base, irregularly toothed on 

 three sides, highly cellular ; apical and marginal cells large, 

 clear, rhomboidal and oblong (parallelogrammic) ; those at base 

 and one-third through towards centre orbicular, minute, and 

 regular. Flagellae short, stout. 



Hah. On bark of trees in woods, lull country between 

 Mohaka and Lake Waikare, County of Wairoa ; 1886 : Mr. A. 

 Hamiltun. 



Obs. A species pretty near M. oUvaceum. 



13. M. obscurum, sp. nov. 



Plant gregarious, procumbent, creeping, pale green. Stems 

 slender, weak, 1-1^ inches long, scarcely 1 line wide with 

 leaves, flexuous, branched ; branches rather long for plant. 

 Leaves fugacious, alternate, thickish, opaque, close but scarcely 

 imbricate above on stems, distant below, oblong-quadrate, trun- 

 cate, trifid ; teeth irregular and coarse ; margins entn-e, the 

 dorsal shghtly arched ; cells not discernible. Stipules free, 

 small, adpressed, transparent and highly cellular, sub-quadrate, 

 4-fid; lobes very obtuse and rounded; cells large, sub-orbicular- 

 quadrate, conjoined, uniform, each lobe containing 4 cells in a 

 line laterally. Flagellas (sought, but not seen). 



Hah. In woods, forming small compact patches ; hill 

 country between Mohaka and Lake Waikare, County of Wairoa; 

 188G : Mr. A. Hamilton. 



