Contributiones novae ad Florain Bryophyton Japonicam. 4L 



Losus, densiuscule ramosus, sectiono c. 0.27 mm. crassus tores, 

 Easciculo centrali paucicellulari, reti intermedio hyaiino sed veter- 

 rimo nigro, cellulis oblongo-hexagonis 12-15,"- in diametro, peri- 

 pherico e cellulis lutescenti-fuscis pluriseriatis valde incrassatis 

 composito.; minis erectis asendehtibus vel curvatulis, c. 2.0-2.5 

 cm. alt is, dense foliosis, teretibus, apice attenuatis et breviter 

 flagellatis vel sœpe obtusis efc hand flagelliformibus, simplicibus vel 

 parce subphmatim ramulosis; ramitlis c. 1. cm. longis, patulis, 

 attenuatis vel obtusis, Folia sicca laxe adpressa longitudinaliter 

 subplicata, humida imbricata, breviter decurrentia, valde con cava, 

 Late ovato-oblonga apice subtio elongata subpiliforme attenuata, c. 

 1.6-2.2 mm. longa et c. 0.9-1.0 mm. lata (acuminibus c. 0.45- 

 0.54mm. longis.), carinata, profunde triplicata, marginibus planis, 

 ubique obsolete serrulatis; nervo viride, ad c. 2 / 3 evanido, in 

 sectione transversali plano-convexo, basi e 3-stratis cellularum 

 composito; cellulis angustis linearibus, basilaribus c. 30-45//- longis 

 et c. ('>,"■ latis, parietibus crassis et parce minute porosis, alarilms 

 numerosis lu mine inferiori quadorato rectanglari vel ovali 

 superiori plerumque vermiculari in seriebus obliquis clisposito, 

 cellulis alaris c. 10-15,« longis et c. 6-8,« latis, cellulis ad basin 

 acuminis linearibus vel rhomboideo-linearibus c. 30-40,« longis et 

 c. S/j. latis, cellulis in acuminen linearibus c. 45-60,« longis et 5,« 

 latis. Ramulus perichaetialis parce radiculosus. Bracteae perichsetii 

 intimse e basi vaginante sensim anguste filiformiter acuminata? et 

 recurvse, c. 2.25-2.7 mm. longa? et 0.6 mm. lata?, apice crenulatse; 

 nervo ante apicem evanido; cellulis folds similis. Archegonia nu- 

 merosa, paraphysibus sat numerosis lutescentibus c. 0.54 mm. 

 longis. Vaginura cylindrica, 1.2 mm. longa, lutescenti-viridis, 

 apice fusca. Setae. 2.5 cm. alta, rubra, kevissima, tenuis, stricta, 

 sicca torta et leniter fexuosula. Theca inclinatula rarius erecta, 

 symmetrica, oblongo-cylindrica, castanea, lœvissima, c. 2 mm 

 longa et c. 0.8 mm. erassa, brevicollis; cellulis exothecii quadratis 

 bexagonis vel rectanglaris c. 40x24-30,"-, ad orificium plano-hexa- 

 gonis c. 15 -it,"-, stomatibus in collo paulum positis, pbaneroporis. 

 Annulus simplex, 10« altus, castaneus, deciduus. Peristomium 

 duplex: exostomii dentés lineari-lanceölati, c. 0.4 mm. longi et 



