497 



(!)i)8). MoiKin^alia : on wet .urouiul (1")9')), and on sand- 

 stone boulder in deep woods (1()(3(>)/I'il)l)'s Hun. Iland(dj)li : 

 on damp sand, Pickens (2207). 



ANEXJRA, Dum. 



A. niultifida (I. ), Dum. 



(Jrant: on wet dead hark (oOoO), anil \ve( derortiealed 

 wood (2070); in deep wooded I'avine, ISayard. 



GEOCALYX, Nees. 



G. graveolens (Selirad.) Nees. 



Monunoalia : on ^i-ound and sandstone boidders, deej) 

 woods, Til)1)"s run (1()()7.) 



SCAPANIA, Dum. 



S. nemorosaCL.), Dum. 



Monongalia: on damp sandstone l»oulder deep woods, 

 'ril)l)'s I'un (16(18). (Trant : on Avet Hendoek log in deep 

 woods, Bavard (2011). lvanilol})Ii : on elav near a s])ring, 

 Pickens, (2212). 



DIPLOPHYLLUM. Dum. 



D. taxifolium.(\Valdenl).). Dum. 



^Fonongalia : on sandstone boulder deep woods, Tibb's 

 run (Kib'.l.) 



PLAGIOCHILA, Dumort. 



P. Virginica, Evans ;.<}>. nov. 



Growing in Avide, depressed, and intricate tufts; stems 

 ascending from a prostrate caudex, sim])le or si)aringly 

 branched, sometimes geniculate and rooting at the joints, 

 otherwise eradiculose ; leaves contiguous or somewhat imbri- 

 cated, widely patent, ovate or rhorjd)oid-ovate^ the dorsal 

 margin decurrent, slightly reflexed, entiiv, the ventral margin 

 plane or retiexed at liase, mostly entire, the apex broad, 

 rounded oi' truncate, sliar])Iy and ii-regularly spinulose; 

 amphigastria none 



Stems 1 to ."Jem. long, with the leaves 1 to 2 mm. wide; 

 leaves 1.2 mm. long, 0.7 mm. wide; spines short, acute, sej)- 

 arated hy rounded sinuses, varying in number from 2 to o 

 on each leaf, usually 4 or 5 : h^af-cells averaging 0.028 mm. 

 in diameter in middle of leaf, thin-walled and scarcely 

 thickened at tlu' angles. 



Mercer: on walls of dr\- limestone cave. 15eaver Spring 

 (l.ViO). 



