CONTRIBUTIONES NOVAE AD FLOKAM BRYOPHYTON JAPONICAM. 



75 



A. X20 



XlO 



Fig. 32. Rhaphidostegium 

 japonictun. 



20-25 II Icitis aiireis, supraalaribus quad- 

 ratis vel breviter rectangulis minoribus 

 lutescentibiis vel hyalinis. Inflorescentia 

 autoica ; flores utriusque sexus gemini- 

 formes in caule vel ramis ; folia peri- 

 gonialia intima ovata, apice breviter 

 acnminata, c. 0.4 mm. longa et c. 0.24 

 mm. lata, concava, enervia ; antheridia 

 c. 5-7, c. 0.16 mm. longa, paraphysibus a. Foiia { x 20) ; b. sporangia (xio). 



perpaucis, hyalinis. Ramulus perichaetialis valde fnsco-radiculosus. 

 Bracteae perichaetii intimae oblongo-lanceolatae, apice sensim 

 anguste attenuatae, c. 0.9-1.0 mm. longae et c. 0.24 mm. latae, 

 subintegerrimae ; nervis binis, indistinctis ; cellulis ut in foliis. 

 Vaginula clavellato-cylindrica, c. 0.8 mm. longa, fusca ; paraphysibns 

 perpaucis. Seta c. 8-9 mm. longa, paulnm flexnosa, rubra, laevis, 

 sicca torta. llicca inclinata vel suberecta, ovalis, c. 1 mm. longa 

 et c. 0.64 mm. crassa, brevicollis, fusca, sicca deoperculata sub ore 

 paulum contracta ; cellulis exothecii coUenchymaticis, quadratis vel 

 breviter rectangulis, c. 30-40 ,« longis et c. 20-30 /^ latis, ad 

 orificium in seriebus dualius vel tribus minutis hexagonis c. 15-20 /< 

 magnis ; stomatibus nullis. Ammlus nullus. Exosfomii dentés basi 

 connati, subulato-lanceolati, c. 0.32 mm. longi et c. 70 /^ lati, 

 hyaline limbati, dorso e basi ad medium fusci et transversim 

 striatuli, apice hyalini et papillosi, ventre dense (c. 35) et alte 

 lamellosi ; endostomium luteum, minutissime papillosum ; corona 

 basilaris c. 0.1 mm. alta ; processus dentium longitudinis, carinati 

 in carina anguste perforati ; cilia bina vel unica, bene evoluta, 

 nodulosa, hyalina, papillosa. Sporne c. 15/^- magnae, fuscescentes, 

 minutissime papillosae. Operculum e basi convexo-conica rostratum, 

 c. 0.64-0.7 mm. longum et c. 0.4 mm. diam., rostro c. 0.4-0.5 mm. 



