(VOL.VI, 1024) FRANZ STEPHANI. SPECIES IIEPATICARUM MasUgobryum. 



fx, basales 27 x45 (jl, trigonis ubique majusculis, acutis. Amphigastria 

 caulina quadrata, magna (1,.'d mm. longa et lata) sinuatim inserta, 

 apicc Iruncata, angulis obtusis, integerrima. 

 Hab. Guatemala (Tiirckheim legit). 



421. Mastigobryum subhyalinum St. n. sp. 



SteriHs, minor, gracilis, flaccida, pallide virens, in rupibus hu- 

 midis dense depresso-ceespitans. Caulis ad 2 cm. longus, sparsim 

 breviterque pinnatus, flagellis longis minute foliosis. Folia caulina 

 contigua, recte patula, apice decurva, in plano oblonga (0,9 mm. 

 longa, medio 0,4 mm. lata) asymmetrica, margine supero e basi 

 rotundata longe arcuato, margine infero substricto, ubique breviter 

 valideque dentata, dentibus obtusis remotiusculis, apice pro- 

 funde (ad 1/3) inciso bifida, sinu angusto, laciniis porrectis, inse- 

 quaUbus, lobulo supero triplo latiore triangulato, infero lineari. 

 Cellulx superae 27x27[x, in vitta 27x54[x, parietibus crassis. 

 Amphigastria caulina parva, caule sequilata, ambitu subquadrata, 

 (0,33 mm. longa et lata) profunde trifida, disco basaU integro 

 unam cellulam longo, laciniis porrectis Hnearibus, 2 cellulas latis, 

 irregulariter repandis vel dentatis. 



Hab. Borneo (Foxworthy legit). 



422. Mastigobryum tamiense St. n. sp. 



Sterilis, robusta, gigantea, fusco-olivacea, rigida, in cortice dense 

 depresso-csespitans, latissime expansa. Caulis ad 15 cm. longus 

 sparsim longeque ramosus, ramis 2 cm. longis, flagellis numerosis, 

 ad 3 cm. longis. Folia caulina imbricata, oblique patula, parum 

 concava, in plano ovato-oblonga (5,5 mm. longa, supra basin 3,25 

 mm. lata) asymmetrica, margine infero truncato, substricto, su- 

 pero (e basi breviter rotundata breviterque appendiculata) longe 

 arcuato, margine infero nudo vel superne minute denseque denticu- 

 lato, apice 0,75 mm. lata, irregulariter tridentata, dentibus similiter 

 denticulatis, medio validiore. Cellulse superse 27 x 36(x, trigonis majus- 

 culis, nodulosis, basales 21 x12[l trigonis magnis acutis. Amphi- 

 gastria caulina magna, reniformia (2 mm. longa, 2,75 mm. lata) 

 subintegerrima, sinuatim inserta, margine supero vix denticulato, 



Hab. Nova Guinea : flumen Tami (L. Schultze legit). 



423. Mastigobryum tantalum St. n. sp. 



Sterilis mediocris rigida, pallide virens. Caulis ad 2 cm. longus, 

 simplex vel sparsim longeque ramosus, flagellis sparsis brevius- 



482 



