24 Art. 7.— S. Okainura: 



irregulariter ramosus, sectione ovalis, c. 0.32x0.2 mm. erassus, 

 fasciculo centrali paucicellulari, reti intermedio hyalino, cellulis 

 hexagonis c. 15-28,« in diametro, peripherico e cellulis viridibus 

 vel lutescenti-fuscis 4-5-seriatis valde incras'satis composite; ramis 

 ascendentibus usque ad 25 mm. longis, strictis vel arcuatis, obtusis 

 vel breviter attenuatis, simplicibus rarius 1-2 ramulösis; ramulis 

 usque ad 5 mm. longis; caulibus ramisque dens Miosis valde 

 complanatis. Folia sicca adpressa, humida erecto-patentia, im- 

 bricata, baud decurrentia, oblongo-lanceolata apice acuminata, c. 

 1.8-2. 2 mm. longa et c. 0.7-0.85 mm. lata, valde concava, mar- 

 ginibus e basi late recurvis dein ad basin acuminis planis, in parte 

 acuminata argute serratis; nervis binis, sequalibus, c. 0.2-0. 56mm. 

 longis, tenuibus, in sectione transversali e 3-striatis celiularum 

 composito; cellulis linearibus, c. 56-70,« longis et c. 4-6,« latis, 

 laevibus, basilaribus laxioribus c. 30-40,« longis et c. 7-11,« latis, 

 inter se porosis, alaribus sat numerosis quadratis c. 20," byalinis 

 vel viridibus. Ramulus perichsetialis in caule et ramis, parce radi- 

 culosus. Bracteae perichaetii intima? e basi alte vaginante sensim 

 auguste subülata?, intégra?; nervo indistincte, rarius distincte c. 

 0.8mm. longo; cellulis basilaribus Iaxis rectanglaribus. Vaginula 

 cylindrica, c. 1.4 mm. longa, lutescenti-fusca; parapbysibus pau- 

 citas. Seta c. 18-20 mm. alta, erecta, stricta, sicca torta, rubura 

 superne lutescenti-rubura, Isevis. Theca erecta, oblong-cylindrica, 

 symmetrica, c. 2.4 mm. longa et c. 0.8 mm. in diam., castanea, 

 brevicollis, collo c. 0.4 mm. longo; cellulis exothecii hexagonis vel 

 oblongo-hexagonis, c. 20-30-45,« longis et c. 15-20,« latis, ad 

 orificium in seriebns 1-2 minutis c. 15,«; stomatibus in collo pau- 

 citibus. Annulus simplex, c. 70,« al tus, rubiginosus. Exostomii 

 dentés basi remoti, lineari-lanceolati, c. 0.44 mm. longi et basi 50,« 

 lati, rubiginosi, basi lœves apice papillosi, intus densiuscule (c. 25- 

 30) et alte lamellosi; endostotnium processus lineari-lanceolati, c. 

 0.15-0. 20 mm. longi, carinati in carina vix perforati vel baud 

 perforati, lutescenti-fusci minutissime papillosi. Spori c. 20/^, 

 lutei, minutissime papillosi. Operculum e basi conicum longe 

 rostratum, c. 0.8 mm. longum, rostro stricto cvlindorico. Calyptra 



