Mastigobryum. franz stephani. species hepaticarum (Vol.VI, 1924> 



viora quam lata, apice regulariter breviterque pluridentata. 

 Hab. Haivai (Newell legit). 



399. Mastigobryum Newellii St. n. sp. 



Sterilis major, flavo-rufescens, rigida et valida, in rupibus laxe 

 csespitans. Caulis ad 4 cm. longus, parum breviterque ramosus. 

 Folia caulina conferta, oblique patula, decurvo-homomalla, in 

 plano ovato-oblonga (3,5 mm. longa, supra basin 2,25 mm. lata) 

 asymmctrica, margine supero e basi late rotundata longe arcuato, 

 infero substricto vel leviter sinuato, apice oblique truncata (0,75 

 mm. lata) breviter emarginato-tridentata, dentibus late triangulatis 

 acutis. Cellulse superse 27 x 27 ]x, trigonis nodulosis, basales 27 x 54 

 (z, trigonis maximis, ovali-nodulosis, saepe trabeculatim confluen- 

 tibus. Amphigastria caulina magna, circularia, basi utrinque cor- 

 datim ampliata integerrima. 



Hab. Hawai (Newell legit). 



400. Mastigobryum obtusidens St. n. sp. 



Sterilis parva rigidula, dilute brunnea. Caulis ad 3 cm. longus, 

 parum longeque ramosus, flagellis sparsis, longiusculis. Folia 

 caulina contigua vel parum imbricata, parum concava, in plano 

 anguste ligulata (1,33 mm. longa, 0,58 mm. lata) subsymmetrica, 

 apice parum angustiore, tridentato, denticulis obtusis vel subacutis. 

 Cellulse superae 18x18[jl, parietibus grosse trabeculatis, basales 

 et in vitta 36 x 36 [x, trigonis nodulosis. Amphigastria caulina caule 

 duplo latiora, subquadrata, transverse inserta, apice irregulariter 

 minuteque denticulata. 



Hab. Hawai (Faurie legit). 



401. Mastigobryum Okamuranum St. n. sp. 



Sterilis, minor gracilis flaccida, dense depresso-csespitans, dilute 

 flavo-virens. Caulis ad 25 mm. longus, sparsim breviterque ra- 

 mosus, flagellis paucis vel nullis. Folia caulina imbricata, oblique 

 patula, parum decurva, in plano ovato-triangulata, asymmetrica^ 

 margine infero substricto, supero e basi arcuata stricto (1 mm. 

 longa, supra basin 0,8 mm. lata) apice oblique truncata 0,33 mm. 

 lata, breviter emarginato-tridentata, dentibus acutis. Cellulx 

 superse 27x27(x, trigonis parvis, basales 27x36 (x, trigonis majus- 

 culis acutis. Amphigasiria parva, caule vix latiora, subrotunda, 

 integerrima. 



Hab. Japonia (Okamura legit). 



475 



