332 POLYFODIACEJE. 



Onjptosorus ; and secondly, that Prosaptia, being phylogenetically quite different 

 from Davallia, should be kept quite distinct from the latter genus. 



JPolystichum KOTH. 



Polystichum aculeatum Sw. var. variiforme HAYATA n. v. Pagina 

 frondis in vivo supra nitida atroviridis subtus pallida. Stipes cum rhachibus toto 

 squamatus, squamis lineari-lanceolatis fuscentibus ; pinnulae latiores quam eae 

 typicge 21 mm. longas 9 mm. Iata3 oblique oblongre apice triangulari-acutre basi 

 latere superiore plus minus auriculatrc margine serrulatre, pinna? inferiores a 

 se 6 cm. remotae. 



HAB. Funkiko, leg. B. HAYATA et TAKEO ITO, ]\Iart. 1914. 



Differs from the type by the mucn larger and broader pinnules and much 

 remoter pinnae. On the whole, this variety has a very different aspect from 

 the type. 



Polystichum hololepis HAYATA sp. nov. Ehizoma asccndens apice 

 cffispitosum frondigerum dense nigro -squama turn. Stipes 20-30 cm. longus deor- 

 suni clensissinie nigro-squamatus sursum minute squamatus, squamis nigris 

 linearibus subulatis integris. Frons ovata versus apicem subito angustata ad 

 acumen abrupte abeuns 30 cm. longa 28 cm. lata apice acuminata basi in 

 ambitu cordata bipinnata, pinnis infimis extra-ordinariter longioribus 16 cm. 

 longis 7 cm. latis lanceolato-triangularibus pinnatis latere inferiore duplo lati- 

 oribus quarn latere superiore, pinnulis infimis lougissirnis superioribus gradatim 

 brevioribus, pinnulis infimis lanceolatis basi latissimis 5cm. longis 22mm. latis 

 pinnatifidis, segmentis lineari-oblongis apice breve aristato-acutis margine sur- 

 sum aristato-serrulatis deorsum integris; pagina utraque glabra subtus ad 

 costas sparse squamata in exsiccato pallido-viridis utraque pagine concolor, 

 pinnis inferioribus petiolulatis, superioribus et pinnulis sessilibus, pinnis in- 

 ferioribus a se 3-4 cm. remotis a rhachi frondis angulo 45 egressis, piunulis 

 inferioribus a se 1 cm. remotis a rhachi pinnarum angulo 80-90 egressis, 

 superioribus gradatim se approximatis angulo acuto egressis ; textura tenuiter 

 coriacea vel chartacea. Sori per totam paginam prope costas vel costulas 

 loborum utroque latere 1-seriatim siti. 



HAB. Taihoku, leg. TAKEO ITO et S. FUJII. 



Near Polystichum varium PRESL., but distinguishable from it by the much 



