BY L. ROD WAY. 21V 



1913. 



incurved, ovate, obtuse to slightly acute, 1 mm. ; margin 

 seri-ulate ; with two very faint short nerves sometimes obso- 

 lete; cells broadly vermiform, the basal series quadrate, 

 but those at the angles not in a defined patch. Rest 

 not seen. 



The absence of finiit and the habit make it« position 

 in this genus provisional. 



Mt. Nelson. 



Stereodon Walterianus (Hpe.) 



Decumbent, branches pinnate, elongated to slender fili- 

 form, flagellate, pale yellow. Leaves of the main branches 

 secund, falcate, broadly ovate, with a short tapering apex, 

 those of the flagellate branches erecto-patent, straight ov 

 slightly recurved, narrow ovate-lauceolate tapering to a 

 slender point, 1 mm. ; margin entire or obscurely subser- 

 iiilate; nerve none or in some leaves a faint sign of a 

 single nerve ; cells vermiform, in the angles a well defined 

 patch of about ten quadrate cells ; perichsetials erect, 

 lanceolate with a slender point. Seta 1 cm. ; capsule 

 slightlv curved, narrow oblong, 1.6 mm.; lid conic, acute. 



On branch of tree, Hobart Rivulet. 



Stereodon Jiagelliramus (CM.) Brotb. 



Decumbent, elongated with numerous short erect 

 branches ; the ends of many of these become flagellate with 

 small closely appressed leaves. Leaves of the normal 

 branches equally dispersed, erecto-patent, broadly oblong 

 from a rather broad base, above rather suddenly contracted 

 toi a short. naiTOw apex, 1.8 mm. ; margin obtusely serrate ; 

 nerve none; cells short vermiform, about twelve enlarged 

 quadrate in a well defined small patch at the angles. Leaves 

 of the flagella narrow oblong, closely appressed, obtuse, 

 serrate, A mm. ; cells nearly rhomboid. 



On deadwood. Hobart Rivulet. 



ISOPTERYGIUM Mitt. 



Suberect, small, slender, irregularly branching. Leaves 

 in five iiTegular rows in typical species, sometimes more 

 numerous, lanceolate from a broad base, thin, smooth, 

 shining : margin plain ; nerve none or two very obscure ^ 

 cells narrow fusiform with very acute ends, thin walled, one 

 row of basal cells shorter and broader. Seta slender, 

 capsule erect or nearly so, oblong, curved ; lid conic, shori;. 

 obtuse ; exostome teeth slender, strongly barred : endostome 

 membrane half length, processes as long, slender, cilia 

 usuallv absent. 



