OSMUNDACE.E. HYMENOPHYLLACEjE. 



135 



frondis oriunda cum peclnnculo 7 cm. louga l^ cm. lata, (pedimciilis 2^ cm. 

 longis) rect,i, raniis panicularum 8 mra. longis oppositis angulo recto divarica- 

 tis sporangia spicatim gerentibus. Sporangia sessilia subglobosa basi Litissima 

 2-valvata toto glabra. 



Hab. Nokosan. leg. U. MoRi, Jau., 1903, (No. 6291). 



Near B. vinjlnianum Sw. (Eat. Feru. North America t. 33), liut difters 

 from it by the more loosely arrauged lobss of tlie pinnules, lobes of which are 

 much more larger than thosa of B. iHrginianum, and by the much shorter 

 panicles which are on the petioles of tho terminal partitions of the fronds. 



Osmundacese. 

 O.smtnida Lixn. 

 Osmunda regalis Llnn. var. y 

 H.AB. Tonkm-ankei, leg. U. Moiu, 1910, Aprih. 



No fertile frond. Sterile oue is a Httle difterent from the type. It may 

 be a variety of the same. 



Hymenophyllaceae. 

 TricJiomanes 8m. 



Trichomanes acuto-obtusum Hayata sp. uov. 

 (Fig. 72). Iihizoma repens fiUforme. Stipes subnuUus 

 vel brevissimus vel nsque 5 mm. longus. Frons 

 cordato-ovatit oblonga vel lauceolata variabiUima usque 

 2 cm. longa usqiie li cm. lata apice rotundata vel 

 obtusa pinnatifida vel bixaiunatifida, pinuis vel piunuhs 

 lobatis, lobis ultimis oblongo-Unearibus 2-3 mm. lougis 

 li mm. latis apice obtuso- 

 acutis ad summum acutis, 

 rhaclubus frondium l^ mm. 

 latis ; frons sursmn sori- 

 fera ; margiue phis minus 

 vel haud uudulata phis 

 minus desuper recm-va, 

 costis utraque pagine 



Fig. 72, Trlchormnes acuto- 

 plant ; h, a portion of a pinna ; c, 

 showing the vermiform strrngs ; d. 



•Musitm Hayata ; a, the 

 a portion of the same, 

 a soras. 



