CoLENSO. — On new Cryptogamic Plants. 289 



sub-orbicular, truncate, trifid, teeth long and sharp, with minute 

 teeth between them ; dorsal margin largely rounded at base 

 and overlapping stem ; ventral margin sub-sinuate, slightly 

 denticulate near apex, waved, with 1 large regular plait near 

 the base to meet the stipule ; cells small, orbicular, with minute 

 interstitial cells, larger and oblong at base. Stipules free, 

 large, 1 line wide, distant, quadrate, patent, recurved, in a 

 regular line with bases of leaves and apparently connate, but 

 really distinct, though approaching very close, somewhat 6-8- 

 lobed on three sides ; lobes irregular, laciniate ; laciuise acu- 

 minate, acute ; cells small, oblong-orbicular. Flagellae rather 

 numerous below, few above, about 3 to a main branch, short, 

 stout, scaly, issuing from above a stipule in the centre of the 

 stem. 



Hah. In dry craggy Fagus woods, growing compactly to- 

 gether on the ground with Bartramia readeriana, but only 

 observed in two or three spots ; banks of the Eiver Mangata- 

 whainui, near Norsewood, County of Waipawa ; 1881-86: 

 W.C. 



Obs. A very elegant and striking species ; scarcely allied to 

 any of its numerous New Zealand congeners, and much more 

 resembling Isotachis in its general appearance. The lower single 

 stems with their leaves are always of a light-brown colour, 

 presenting a dead appearance. 



5. M. macro -am2)higastrum, sp. nov. 



Plant rather stout, firm, 2 inches long, 2-3 inches wide, 

 dichotomous, spreading, of a pleasing dark-green colour ; 

 branches equal, 1^ lines wide, leafy throughout, much flagellate. 

 Leaves opposite, closely imbricate, oblong, falcate, convex, 

 truncate, trifid, sinuses very large and minutely and irregularly 

 toothed, margins entire ; dorsal margin much arched ; ventral 

 margin shghtly sinuate at tip, dilated at base, largely incised in 

 the middle, and abruptly truncate at extreme base to meet the 

 stipule, which it does very closely though not connate ; cells 

 minute, orbicular, distinct at tips, crowded in the body of the 

 leaf, each cell containing 2-3 pellucid dots. Stipules free, 

 large, sub-deltoid-truncate, produced, patent, set slightly above 

 where the two opposite leaves meet the stem, margins coloured 

 brownish-red, recurved, and much laciniate ; lacinife sharp ; 

 cells irregular, oblong-rhomboidal at apex, smaller and orbicular 

 at base. Flagellae short, stout, scaly, branched, thickened at 

 tips, by which they adhere rather strongly. 



Hub. In low wet shaded woods near Norsewood, County of 

 Waipawa ; 1886 : W.C. On close, compactly-growing mosses, 

 and on other Hepaticce, overrunning them. 



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