A. W. Evcms — North American Species of Fridlania. 31 



stems regularly once or twice pinnate, fertile stems more irregularly 

 pinnate: leaves contiguous or imbricated, the lobe orbicular-ovate, 

 arching over the stem but not cordate at base, mostly plane at the 

 rounded apex, entire : lobule close to the stem and subparallel with 

 it, short-clavate ; stylus minute : underleaves distant, obovate, plane, 

 bifid about one third with obtuse or subacute lobes and sinus, entire : 

 leaf-cells of lobe thick- walled with inconspicuous trigones and no 

 intermediate thickenings : ? inflorescence terminal on the stem or a 

 main branch, bracts in three or four pairs, unequally bifid, the lobe 

 ovate or oblong, rounded or obtuse and often apiculate at the apex, 

 entire ; lobule narro^ver, ovate, subacute, bearing a minute tooth or 

 stylus on the inner edge near the base, otherwise subentire ; brac- 

 teole free or connate on one side, ovate, bifid to about the middle 

 Avith subacute lobes and sinus, entire or slightly sinuous-dentate ; 

 perianth more than half-exserted, compressed on the sides and 

 strongly one-keeled postically, oblong, abruptly narrowed into a 

 short beak, setulose at the mouth : 3 spike globose, terminal on a 

 short branch at some distance from the involucre, bracts in about 

 two pairs. 



Stems 0-10'"™ in diameter ; lobes of leaves 0-45™°^ long, 0-35'^™ 

 wide, lobules 0-18™'^ long, O'lO"^'" wide; underleaves 0-20™'^ long, 

 O-IV"™ wide; lobes of branch-leaves 0-35°^"^ long, Q-'i.b^'^ wide; 

 branch-underleaves 0"17™™ long, 0-10°i°' wide ; leaf-cells from edge 

 of lobe 0-012™'", fi-om middle 0-016™™ in diameter, and from base 

 0-035™™ long, 0-022™™ wide ; bracts I, lobe 0-85™™ long, 0-45™™ wide, 

 lobule 0-80™™ long 0-30™™ wide ; bracteole I, 0-85™™ long, O'SO™™ 

 wide ; bract II, lobe 0-70™™ long, 0-45™™ wide, lobule 0-50™™ long, 

 0-25™™ wide ; bracteole II, 0-50™™ long, 0-35™™ wide ; perianth 1-25™™ 

 long, 0-76™™ wide. 



On bark of trees, or sometimes creeping over lichens ; Florida to 

 Louisiana. Distributed in Hep. Bor.-Amer. n. 105d, and in Hep. 

 Amer. n. 101. 



Frullania Kxmzei Avas first described from Cuban material, but 

 does not seem to have been collected very often in the West Indies ; 

 in our Gulf States, on the contrary, it is apparently not uncommon. 

 It is most closely related to the following species, F. Donnellli, but 

 also bears some resemblance to F. Selwyniana. From this latter 

 species it differs in its more regularly pinnate stems, in its narrower, 

 less convex and homogeneous leaves, which are not cordate at the 

 base, in its more exserted perianth with longer setulse at the mouth, 

 and in its entire bracts. 



