CoLENSo. — Description of new Cryptogamic Plants. 45 



ovate, very acuminate, serrate : perichffitial, long, subulate, 

 flexuous. Cells linear, long. 



Hub. Dry sides of watercourses among small HepaticcBr 

 woods, Dannevirke, County of Waipawa ; 1888 : W. G. 



Obs. Only one specimen of this very distinct species de- 

 tected among my collected specimens. 



Genus 71. Hookeria, Smith. 



§ 2. MNiADELrHus, C. Muell. 



1. H. scmiserrulata, sp. nov. 



Plant terrestrial, tufted ; stems brownish, l^in.-2fin. high, 

 4 lines broad at top, tips curved ; basal leaves small, distant, 

 with a number of brown rootlets implexed among them. 

 Leaves on main stem sexfariously disposed, but quadrifarious 

 on the lower part of branches, imbricate, light-green, trans- 

 parent, wavy, recurved, broadly margined, the upper half and 

 apex finely serrate, the lower slightly irregular but scarcely 

 denticulate : lateral leaves oblong, spreading, 2 lines long, 

 apiculate, base dimidiate : dorsal and ventral, orbicular, apicu- 

 late ; binerved, nerves united and very stout at base, unequal, 

 divergent, the longest extending one-third to two-fifths of leaf ; 

 cells hexagonal, smaller around margins, larger oblong and 

 rhomboidal at base. Perichaetial leaves oblong-obovate, sud- 

 denly very acuminate, the narrow tip two-fifths the length of 

 leaf, flexuous, tip acute, slightly margined and serrulate at 

 apex ; nerve ; cells sub-linear-lanceolate, their ends thick- 

 ened. Fruit-stalk ^in. long, pale-green, scabrid. Calyptra 

 (young) narrow or straight, base fimbriate ; tip obtuse, fim- 

 briate with long wavy irregular whitish fimbria?. 



Hab. Low wet shaded woods, south of Dannevirke, 

 County of Waipawa ; 1888 : W. C. 



Obs. This plant dries both crisp and green. 



§ 3. PteeyctOphyllum, Bridel. 



2. H. s ex f aria, sp. nov. 



Plant large, terrestrial, gregarious. Stems stout, flattish, 

 sub-erect, 3in.-3^in. high, ^in. wide at top ; branches few ; 

 leafy from base. Leaves sexfariously disposed, not margined, 

 largely serrate, tips obtuse ; pale-green : lateral leaves oblong, 

 dimidiate, 3 lines long, spreading, young tips bearing a reddish 

 hue : dorsal and ventral, orbicular-ovate ; nerve stout, extend- 

 ing three-fifths of leaf, bifid about the middle of leaf, colour 

 same as leaf, but brownish-red at base. Cells large, orbicular, 

 with clear minute triangular intermediate spaces. Perichaetial 

 leaves small, sub-ovate-acuminate, entire ; tips truncate, ser- 

 rate ; cells narrow oblong - lanceolate ; nerve 0. Fruit-stalk 

 (young) 5-7 lines long, stout, flexuous, red, glossy, five on a 



