260 HYMENOPHYLLACE^E. 



et B. HAYATA, Aprili. 1914. 



Trichom-anes SM. 



Trichomanes cupressifolium HAYATA Ic. PL Formos. IV. p. 136, fig. 

 73. 



This is the most slender fern, hunging vertically on the under side of a 

 large rock, attaining sometimes nearly 50 cm. in length. 



Trichomanes kalamocarpum HAYATA sp. nov. Rhizoma repens. Stipes 

 4-6 cm. longus glaber cnni alis medio 2| mm. latus. Frons tenuissime rnein- 

 "branacea in exsiccato pallido-fusca hand nitida opaca semi-hyalina glabra in 

 ambitu lanceolata apice acuminata ad summum obtusa basi 

 in ambitu subtruucata vel rotundata 9-1 4 cm. longa 2^-4^ cm. 

 lata bipinnatifida, segmentis inferioribus longissimis, iufimis 

 paullo brevioribus, superioribus gradatim brevioribus versus 

 apicem ad lobos acmninis reductis, segmentis I. inferioribus 

 2i cm. longis oblique triangularibus 1^ cm. latis apice trian- 

 gulari-acutis ad summum obtusis basi latere inferiore fractis Fig. 93, Tri- 



pinnatifidis, segmentis II. ovatis vel obovatis lobulatis, lobulis cho ' 1Mnes ^alamo- 



carpum HAYATA ; a 

 oblongis apice obtusis; rhachis froudis alata medio 2 mm. lata. portion of a lobe 



Sori ad axillas segmentorum I. et II. vel loborum siti lobulos of the frond ' show " 



ing the cellular 



terminantes. structure. 



Trichomanes orientale HAYATA Ic. PL Formos. IV. p. 138, fig. 77, (non 

 C. CH.) 



HAB. Mt. Arisan, leg. B. HAYATA et S. SASAKI, Jan. 1912. 



Distinguishable very clearly from. T. orientale C. CH. by the cellular structure 

 of the fronds. The cells of the fronds of T. orientale are hexagonal bounded by 

 straight lines, while those of the present plant are hexagonal, pentagonal or 

 quadrangular bounded by curved lines. The lobes of this new species are much 

 obtuser than those of T. orientale. 



Trichomanes palmifolium HAYATA Ic. PL Formos. IV. p. 138, fig. 78. 



Near Trichomanes insigne VAN BOSCH (BEDD. Fern. Brit. Ind. t. 284) 



