22 Art. 7.— S. Okamura : 



Thatnnium Fauriei BROTH. ET PARIS. 

 Kyûshû: Prov. Osumi, Okachi, Amami-Oshima (Coll. K. 

 Miyamoto! Martio, 1911.). 



Lembophylfaceae, 



Isothecium elivcrsifortne (MlTT.) BeSCH. 



Korea: Quelpsert (Coli. Saxri Ichikawa! 1905.). 

 Entodontaceae. 



Knloäon JLndoi Sh. OkAMURA. sp. 110V. 



(Tab. XL) 

 Habitatio ad rapes irrigatas. Robustus, caespitosus, ctespitibus 

 bete viridibus nitidiusculis laxis densiusculis molliusculis. InfIores= 

 centia monoica, flores utriusque sexus in caule. Caulis elongatus, 

 repens, c. 15 cm. longus, apice sœpe flagelliformiter productus et 

 leniter arcuatus, densiuscule pinnatim ramosus, sectione ovalis, c. 

 0.28-0. 40x0. 2-0. 24 mm. crassus, fasciculo centrali nullo, reti 

 centrali byalino tenero, cellulis hexagonis c. 15-20// in diametro, 

 peripberico e cellulis tenellis minoribus composite; ramis prostratis, 

 plerumque simplicibus c. 2.-2.5 cm. stepe c. 6-8 cm. longis, cus- 

 pidatis vel attenuatis, rarius 1-3 ramulosis, aliquando flagellifor- 

 miter productis et laxiuscule pinnatim ramulosis, densiuscule 

 foliosis et valde complanatis, cum foliis c. 2.0-2. 5 mm. latis, sed 

 ssepe nudis, hie illic fasciculatim fuscescenti-radiculosis; ramulis c. 

 1.-1.5 cm. longis, cuspidatis vel breviter attenuatis. Folia sicca 

 laxe adpressa, bumida erecto-patentia, haud decurrentia, e basi 

 valde contracta oblonga, apice subito breviore latiore acuta, c. 1.4- 

 1.7 mm. longa et 0.6-0. 8 mm. lata, valde coneava, marginibus e 

 basi recurvis dein ad basin apicis ineurvis, apice minutissime ser- 

 rulatis; nervis binis, tenuibus, brevibus c. 0.32-0.48 mm. longis; 

 cellulis valde chlorophyllosis, prosenehymaticis, c. 60-90/^ longis et 

 c. 6-7/-« latis, superioribus rhomboideis c. 20-30/-« longis et c. 7/x 

 latis, basilaribus laxiusculis c. 42-56,« longis et c. 7-9/-* latis, alaribus 



