Contribution! s novae ad Floram Bryophyton Japonicain 29 



valde chlorophyllosis, utriculo primordial! distincto, in medio folii 

 rectanglis rhombeis vol rhombpicleis c. 15-30,« longis ct c, 7—0,« 

 latis, superioribus rhomboides c. 20-30/* longis et c. 5-7,« latis, 

 basiraribus Iaxis a 30-60« longis et c. 15-20,« latis hyalinis, 

 alaribus valde Iaxis plerumque rectanglaribus c. 30-70,« longis 

 et c. 15-25,« latis hyalinis; folia ramulia concava, oblongo- 

 laceolata, apice acuta, c. 0.48-0.64 mm. longa et c. 10-0.2 non. 

 lata, marginibus planis, integerrimis vel minutissime serrulatis, 

 nervo infra summum apicem folii evanido; folia ramulia in eau le 

 concava. ovato-lanceolata, apice longe attenuata, c. 0.7-0.9 mm. 

 longa et c. 0.3-0.37 mm. lata, marginibus planis, integerrimis vel 

 minutissime serrulatis, nervo infra summum apicem evanido. 

 Caetera ignota. 



Hondo: Prov. Shinano, Uryû-zaka, Fuse-mura, Kitasaku-gun 

 (Zenryô Ohinata! Martio 25, 1900.) 



Species H. filiciano (L. ) Loesk. proxima, sed statura robus- 

 tiore, foliis latioribus, deltoido-cordatis, in acumen sublatum brève 

 attenuatum constrictis facillime dignoscenda. 



CaUicrffon Muuaguchii Sir. OkAMURA. Sp. nOV. 



(Tab. I. H-M.) 

 Plantae aquatiles, robustae, caespitosœ. caespitibus laete viridibus 

 inferne lutescenti-fuscis nitidiusculis densiusculis sicca rigidiusculis. 

 Caulis elongatus, repens, lutescenti-viridis, hic illic rubiginoso-radi- 

 culosus, dense ramosus, sectione teres c. 0.4-0.7 mm. in diametro, 

 fasciculo centrali pluricellulari veterrimo fusco, reti ceteroquin paene 

 a centro usque sensim minore et crassiore, intus areolas fere 

 hexngonis, periphericum in stratis 2-3 minorissimis; ramis prost- 

 ratis, viridibus, c. 5-8 cm. longis, obtusis vel brève attenuatis, 

 simplicibus vel parce irregulariter pinnatim ramulosis; ramulis c. 

 5-6 mm. longis, obtusis, plerumque simplicibus; ramis ramulisque 

 dense foliosis subcomplanatis. Folia sicca laxe adpressa et leniter 

 longitudinaliter plicata, humida erectro-patentia et laevis, longe et 

 late decurrentia, deltoido-cordata, apice acuta et saepe leniter 

 spiraliter contorta, c. 1.8 mm. longa et c. 1.4-1.0 mm. lata, 

 cochleariforme concava, marginibus planis, ubique argute serra tis; 

 nervo vadido, ad 4 /g evanido, rarius 1-nervuloso, in sectione 



