220 



rOLYrODLVCFJE. 



apice in ambitu obtusis vel rotundatis serrulatis, serrulis pinnularam acutis. 



Rhachis frondis albo-straminea supra 

 sulcata in sulcis pubescens; rhachis 

 pinnge anguste canaliculata in canal iculo 

 it pubescens supra remote alternating 

 setulosa ; costula pinnularum supra im- 

 pressa remote setulosa ; pagina subher- 

 bacea rigescens utraque subglabra; piunis 

 a rhachibus frondis, piunulis a rhachi- 

 bus pinnae angulo 80-90 egressis, 

 pinnis inferioribus a se 2|- cm. rernotis, 

 pinnulis a se 5 mm. a se. remotis. Sori 

 secus costulam utroque latere 1 -seriatim 

 dispositi, latere singulo venee siti vel 

 rarius utroque latere venae dispositi. 



HAB. Arisan, ad 7000 ped. alt., 

 leg. B. HAYATA et S. SASAKI, Jan., 1912. 



Allied to AtJiyrium nV/esceras MAKING. 

 Whether this new fern and its allied 

 species should be referred to Atliyrium 

 or Diplazium, is very questionable. The 

 habit of these^ ferns is rather of the 

 Athyriiim-iypv, but', the sori are some- 

 times of the Diplaziiim-iype. Very 

 remarkable for its having very long 

 slender tails at the apex of the pin n SB. 



Diplazium tenuicaule HAYATA 

 sp. nov. (Fig. 150). Rhizoma? Stipes 

 20 cm. longus subglaber cineraceo-pur- 

 purascens. Frons 30 cm. longa 16 cm. 



lata apico gradatim acuminata basi trun- 



Fig. 1BO, Diplazium tenuicaule HAYATA : i IT-- i-ci 



' caia pmnata vel bipiunatinda, pinnis 

 a, the pliint ; b, n pinnule (upper one) ; c, a 



sorus of the Aiiantvdia-type. medio basi aaquilongis a se 3 cm. remotis 



