80 tasmanian bryophyta, 



Jamesoniella, Schiffn. 



Decumbent or erect, generally rigid few branches. 

 Leaves succubous, entire rotund to oblong, imbricate, mar- 

 gins inflexed or flat ; cells rotund with thick walls seldom 

 with, apparent trigones ; underleaves absent except in the 

 ilo-ral region. Perianth terminal, cylindric, plicate, mouth 

 rather contracted; bracts as short as or shorter than the 

 leaves more or less divided into linear lobes. 



1 . Cuticle verrucose colorata 



Cuticle smooth 2 



2. Leaves under 1 mm. appressed tei^'-'i 



Leaves larger 3 



3. Leaf base constricted 4 



Leaf base broad fas?nanica 



4. Leaves erect or nearly so c/randi flora 



Lower leaves squarrose soiidei^i 



Jamesoniella colorata (Lehm.), Spruce. — Decumbent, 

 matted, wiry, tinged with yellowish-red. Leaves closely 

 imbricate, rotund, margins slightly inflexed, base narrow, 

 dorsal base straight but not decurrent, ventral rather more 

 rounded, 1 mm.; cells 27 /x., walls thick continuous with 

 the trigones, cuticle coarsely verrucose. Perianth narrow 

 cylindric irregularly grooved, mouth narrowed with short, 

 broad irregular fimbriae ; bracts about as long as the 

 leaves, quadrate, shortly fimbriate, bracteole broadly 

 lanceolate. 



Very common. 



Southern Hemisphere, widely distributed. 



JamcmnieUa grandiflora (L. et G.), SiDruce. — Decum- 

 bent, wiry, matted, nearly black. Leaves imbricate but 

 often more or less recurved, broadly oblong, 1-1.7 mm. 

 margin slightly inflexed, both bases rather acute ; cells 

 subquadrate mostly about 14 /*., becoming very much 

 larger towards the centre and base, walls rather thick, 

 trigones none, cuticle smooth. Perianth narrow-cylindric 

 grooved, about 4 mm., mouth irregularly lobed ; bracts 

 rather longer than the leaves, very variable in armature, 

 sometimes with only a few fimbriae towards the dorsal 

 apex, at others variously laciniate ; bracteole long, and 

 very slender, with few slender laciniae. 



Mountain plateaux. 



South America. 



.Inmc^onieVa icrca, C. et P. — Small, wiry, green tinged 

 with red. Leaves imbricate, clos:ely appressed oblong 0.5 

 mm., base broad, apex obtuse soon weathering; cells 18 

 ^., walls rather thin, trigones not apparent. Perianth 



