tangible characters. Our present 7richomanes would fall into 
Ptilophyllum of Van den Bosch, of which the character given is, 
“Frons 1—2-pinnatifida margine denticulata” (hardly in this 
plant), “ pilis hyalinis sessilibus simplicibus (raro furcatis) sparsis 
obsessa, venula pinnatifida vel furcata, sori terminales.” Hyme- 
nophyllacee are by this author now grouped into twenty-four 
species. We look anxiously for the more complete development of 
this author’s views. His ‘ Hymenophyllaceze Javanicz,’ a quarto 
volume which has just appeared, gives admirable descriptions, 
and equally admirable figures, of what is known of this beautiful 
tribe of plants in the Dutch East Indian possessions. 
Piate 56. Tuft of Zrichomanes (§ Ptilophyllum) Baneroftit, Hook. and Grev., 
fertile——natural size. Fig. 1. Primary segment, with sori,—magnified. 2. In- 
volucre and receptacle of capsules,—more magnified. 
