83 



1. T. planifolium, Bbidel. Neckera planifolia, Hook. 

 Stems erect, pinnately branched, branches conrpla- 

 nate ; leaves distichously imbricating, erecto-patent, 

 ovate, serrate at the tip, inconspicuous nerve ; capsule 

 erect, sub-cylindric, lid conical subulate. Growing 3in. 

 high on dead trees, in forest, Est Eiver. 



57. ISOTHECIUM, Beidh, 



Jjlqual capsule. Tree-like in form. On rocks and trees. 

 Xey, No. 73. 



A. Steins sub-erect, sub-pinnately branched, lin. high, nerve 0. 



1. /. gracile, Hook. f. and Wils. Stems branched; 



branches recurved. Leaves erecto-patent, elliptic! 

 concave, hardly acute, secund, obscurely toothed, 

 nerve 0; perichsetial squarrose, acuminate. Eruitstalk 

 smooth, capsule oblong, cernuous ; lid conical. On 

 stones in rivulets. 



lin. high, leaf nerved half-way. 



2. /. pumilum, Hook. f. and Wils. Stems dendroid, 



pinnately branched, scaly below, branches complanate. 

 Leaves ovate or ovate-oblong, serrulate, nerve slender, 

 reaching half way to apex ; perichsetial, sub-squarrose, 

 ovate-ligulate. Eruitstalk short, smooth. Capsule 

 ovoid, cernuous, ringed. Lid beaked. Neckera rivalis, 

 Mitt. West End Eivulet and Stackhouse Falls. 

 Stem 2-3in. long, capsule sub-erect. 



3. /. arbuscula (Hooheria, Smith). Stems bi-pinnately 



branched ; leaves imbricate, spreading,, ovate, concave, 

 quite entire, nerves 2, indistinct. Pruitstalk short, 

 flexuose ; capsule sub-erect or cernuous ; lid conical. 

 Var. £. dejlexum, stem arcuate, and rooting at the 

 apex. Leaves more acute and less concave. On trees 

 in dense forests. 



4. /. angustatum, Mitt. Very similar to I. arbuscula, 



but smaller in all its parts, 2-3 pinnately divided ; 

 leaves spreading, sub-compressed, narrow oblong- 

 ovate, acute, concave, quite entire, those in the 

 branches serrulate above ; perichsetial, subulate, 

 spreading. Capsule short, ovoid, horizontal. Hook. 

 Handbook N.Z. El. Mt. Wellington. 



Capsule pendulous. 



5. /. (Porotrichum) fruticosum, Mitten. Similar to 



I. arbuscula, but the more acute ovate leaves and the 

 drooping capsule on elongated fruitstalk, sufficiently 

 distinguish it. Mitten's Cat. Austr. Mosses. 



