140 



HYMENOrHYLLACEJE. 



Fern. South Iml. t. 262) by tlie much acnter lobes of tha pinme. 

 Also near T. lutemarginlk EATON (HK. BK. Syn. Fil. p. 79) in the general 



form, but I could not 

 satisfactorily identify 

 our fern with it. 



Trichomanes ri- 

 gidum Sw. ; (Fig. 79) 

 MATSUM. et HAYATA 

 Enum. PI. Formos. p. 

 568. 



HAB. Hieranzan, 

 leg. B. HAYATA et S. 

 SASAKI, Juli., 1912. 

 Hjjincnophyllum 



LINN. 



Hymenophyll- 

 um constrictum 

 HAYATA sp. uov. (Fig. 

 80). Rlrizoma repens 

 teres gracillimum mm. 

 in diametro sectionis 

 remote radicans, radici- 

 bus pilis longioribus 

 dense obtectis. Stipes 

 erectus gracilis 8-9 cm. 

 lougus teres f mm. in 

 diametro ad basin vel 

 ad apicem virgse dense 

 pilosus, pilis nigro-casta- 

 neis subcrispis vel rectis 

 1-seriatim multice- 



8O, Hymenophyllum constrictum HAYATA ; a, the plant ; b, a 

 hair at the base of the frond ; c, a portion of a pinnule. 



llularibus 1-3 mm. longis. Frons triangulari-ovata 10 cm. longa totiusque lata 

 apice acuta basi in ambitu subcordata bipinnata tri-quadri-pinnatifida, pinnis 



