Bkown. — On the Genus Orthotrichum. 429 



9. Orthotrichum lancifolium, sp. nov. 



Plants monoecious, yellowish-green, growing in small tufts 

 from Jin. to fin. high, branched by innovations. Branches 

 loosely spreading, short, subfastigiate. Leaves closely imbri- 

 cating, spreading, lower and middle ones very similar in out- 

 line, linear-lanceolate, acuminate, base of the leaves clasping 

 the stem. Margins entire, very recurved from the base to 

 above the middle of the leaves, upper ones larger, ovate-oblong 

 or ligulate, acute, twice the breadth of the middle ones, con- 

 cave. Margins entire, not recurved, or very slightly. Nerve 

 indistinct near the apex. Areola : Upper punctiform, lower 

 linear-oblong. Perichcetial leaves shorter than the upper 

 ones, erect, ovate-lanceolate, acuminate. Margins entire, 

 plain, concave. Nerve continued to the apex. Fruitstalk 

 erect, Jin. long. Capsule oblong-pyriform, tapering into the 

 fruitstalk. Peristome single, 8, bigeminate, entire. Operculum 

 not found. Galyptra mitriform, plicate, pilose, as long as the 

 capsule. Male inflorescence gemmaceous in the axil of a leaf 

 below the perichaetium. 



Hab. Trees, Port Lyttelton hills, Banks Peninsula ; 

 August, 1883. Collected by B. B. 



10. Orthotrichum clintonii, sp. nov. 



Plants monoecious, brownish-green, growing in loose tufts 

 lin.-li-in. high, branched by innovations. Branches spread- 

 ing, short. Leaves erecto-patent or spreading, imbricating, 

 lower ones linear-lanceolate, acuminate ; middle and upper 

 leaves very similar in their outline, ovate or oblong-lanceolate, 

 tapering into an acuminate point, base sheathing. Margins 

 recurved from the base to above the middle leaves ; papillose, 

 concave, nerved to the apex. Areola : Upper punctiform, lower 

 oblong. Perielicetial leaves much shorter than the upper ones, 

 erect, oblong-lanceolate-acuminate, concave. Margins plain, 

 entire. Nerve disappearing at the apex. Fruitstalk T \in. 

 long. Capsule exserted, ovate-oblong. Peristome single, 8, 

 bigeminate, entire. Operculum mammillate. Galyptra mitri- 

 form, as long as the capsule, plicate, pilose. Male inflores- 

 cence in the axil of a leaf. 



Hab. Trees near McKinnon's Pass, head of Clinton Glen ; 

 January, 1890. Collected by E. B. 



11. Orthotrichum inaequale, sp. nov. 



Plants monoecious, yellowish-green, growing in small tufts 

 fin. high, branched by innovations. Branches short, fastigiate. 

 Leaves imbricating, erecto-patent, lower leaves small, ovate, 

 subulate, middle and upper ones linear-lanceolate, tapering 

 into an acute point from an erect ovate sheathing base, con- 

 cave, upper leaves largest. Margins plain, entire. Nerve 



