138 tasmanian bryophyta, 



Lejeunta Group. 



Medium to minute, pinnate or irregularly branched,, 

 decumbent or ascending. Leaves incubous, erecto-patent, 

 bilobed, dorsal lobe the largest and assuming the character 

 of the leaf, ventral lobe or lobule inflated from small and 

 closely appressed to the leaf to nearly as large; under- 

 leaves nearly always present, rotund to bifid to the bas.e 

 with erect or widely diverging lobes, rarely absent or witb 

 double the normal, namely, being one to each leaf. Bracts- 

 similar to leaves and little larger ; perianth terminal but 

 thrust aside by one or two innovations, pyriform slightly 

 flattened, 5 plicate, rarely quite smooth, moiitli minute-, 

 tubular. Capsule oblong on a short seta, valves separating 

 to the middle, elators attached to the apex of the valve. 



An enormous group now divided into many genera 

 upon inessential distinctions. 



1. Underleaves rotund or obovate 2 



Unclerleaves bifid with diverging lobes ... 4 



2. Underleaves rotund 3' 



Underleaves broadly obovate ... Clieilolejeunia 



3. Lobule small Eulejeunia 



Lobule nearly as large as leaf ... M icrolejeunia 



4. Underleaf to every other leaf . DrevanoJejeunia 

 Underleaf tO' every leaf Diplai^iolcjeunia 



Stephani has determined a Tasmanian specimen as 

 Strepsilejeunia austrina, Spr. An error appears to have 

 crept in as the portion of the gathering retained does not 

 agree at all with that plant as described. 



Eulejeunia, Spruce. 



Medium size ; leaves imbricate, ovate to obovate with 

 a rotund apex, symmetric, lobule small ; underleaves ro- 

 tund, shortly bifid, 2-3 times as broad as the stem. Per- 

 ianth in Tasmanian specimens with 5 bold keels above, 

 smooth below. 



Variable, and the species are established on unstable 

 forms. Many are very doubtful. 



1. Lobule less than J size of leaf fumida 



Lobule about l-3rd size of leaf 2 



2. Underleaf l-3rd size of leaf 3 



Underleaf nearly size of leaf dnini/iinndi 



3. Lobes of underleaf obtuse fas/imiit'ca 



Lobes of underleaf very acute . cu-^p/(/isf/pi(ht 



