132 TASMANIAN BRYOPHYTA, 



Leaves rather obtuse. 



Leaves linear, rigid strictus. 



Leaves ligiUate. cells papillose... oblongifolius. 



Leaves acute, cells incrassate;. 



Cells small, convex pallidus. 



Cells rather large, smooth Whiteleggi. 



Margin of sheath alone bordered. 



Leaves lanceolate, straight integerrimus. 



Leaves oblong, incurved elamellosus. 



Leaves oblong, straight brevifolius. 



Leaves oblong, recurved, papillose vittatus. 



Margin of lamina with a very narrow border; plants 

 small, 



Leaves short, recurved, papillose vittatus. 



Leaves straight, oblong, cells irregu- 

 larly quadrate, 8-10 u. brevifolius. 



Leaves narrow, oblong, cells rotund, 



5-6 u leptocladus. 



Margin of lamina, witli strong border. 



Nerve not excurrent. Plant tall. 



Apex re volute when dry leptocladus. 



Tall rigid water plant rigidulus. 



Plants small, leaves of fertile stems, lanceolate, border- 

 ed on the sheath, with an excurrent nerve. Leaves 

 of male plant short, broad, little or not at all bor- 

 dered semilimbatus 



Plants small, all leaves lanceolate, with a broad bor- 

 der, usually blending with thei excurrent nerve 

 pungens. 



