rOLYPODIACE^. 



191 



e 



parallelis), basi inferiore cuneato-acutis sessilibus vel brevisshue petiolatis 

 margine aristato-serrulatis ; rhachis supra sulcata tennis squair.ata, costis venis 

 pinnse tenuissimis utraque pagine elevatis distiuctis ; pagina supra nitida atro- 

 viridissima glabra subtus regu- 

 lar! ter secus venas venulas cos- 

 tulasque squamis raiiiutis obtecta, 

 squamis persistentibus subrubris 

 T * e mm. latis cuspidato-rotundatis 

 denticulatis basi cordatis ; textura 

 ten niter coriacea. Frons fertilis 

 qnam sterili minora lanceolata 

 30 cm. longa 4-5 cm. lata subtus 

 soris utroque latere costte fere uni- 

 seriatim dense instructa. Pinnae 

 steriles et fertiles margine 

 tenuiter albo-marginat?e. In- 

 dusium peltatim rotundatum 



I 



margine irregulariter crenato- 

 integrum l mm. in diametro. 



HAB. In monte Arisan, ad 

 8000-7000 ped. alt., leg. B. 

 HAYATA et S. SASAKI, 1912, Jan. 



Polystichum constantis- 

 simum HAYATA sp. nov. (Fig. 

 129). Dryoptcris condantissima 

 HAYATA in sched Herb. Tailioku. 

 Rhizoma? Stipes 30 cm. longus 

 fusco-stramineus basi squamatus, 

 squamis nigricantibus, in mag- 



nitudine variabilibus majoribus 



, i i. T ! i i- FiQ. 129. 1'olilstichum fonstardbsftimum HAYATA : 



lanceolatis Imeanbus vel ovatis ., y . ... 



a, the plant ; b, a scale at the base of the stipe ; 



acuminatissimis basi auriculato- c > one of the smallest scales on the stipe ; d, a hair 



on the tinder surface of the frond ; e, a pinna ; f , 



cordatis vel truncatis 6-7 mm. an indusium. 



