Symphijogyna. franz stephani. spegies hepatigarum. 35 



19. Symphyogyna Volkensii St. n. sp. 



Dioica, maxima, flaccida, dilule olivacea. Frons procumbens ad 7 cm. 

 longa, 15 mm. lata, crispata, simplex vel e latere costse ramosa, late 

 ligulata, apice parum angustata profunde inciso-biloba. Costa angustis- 

 sima, antice leniter concava, poslice bene producta, medio 10 cellulas 

 crassa, abrupte in alas attenuata. Alœ undulatae margine crispatœ celerum 

 integerrimse. Cellulœ alarum ad costam 45 X 72 ^, medio 36 X 63 jx, 

 tenerae, margine 18 X 63 ]x ibidemque trigonis incrassatse. Squama fem. 

 parva, anguste inserta, obovata, ad medium laciniata, laciniis lanceolatis, 

 margine répandis vel angulatis varieque tortis. 



Hab. Africa orient in Monte Kilimandscharo (Yolkens). 



Omnium maxima et facile distinguenda. 



20. Symphyogyna tenuicostata St. Engler's Bot. Jahrb. 1895, 

 p. 306. 



Dioica, majuscula, tenerrima, dilute-virens, dense depresso-caespitans. 

 Frons ad 35 mm. longa, 8 mm. lata, procumbens, plana vel undulata, 

 simplex vel postice ramosa, basi atténua tim alata, ceterum late ligulata 

 apice profunde inciso-biloba. Costa angustissima, postice bene producta, 

 medio 10 cellulas crassa, abrupte in alas attenuata. Alx integerrimse, 

 cellulis ad costam 45 X 90 ]x, medio 45 X 68 [i, margine 18 X 108 jx, 

 trigonis nuUis. Squama fem. parva anguste inserta, basi crassa ceterum 

 tenuis (unislrata) oblonga, ad medium bifida, laciniis irregulariter bifldis. 

 Calyptra ad 5 mm. longa, clavata, crassa. y\ndrœcia in planta longiore et 

 angustiore, longe linearia, bracteis confertis costam obvelantibus, alte 

 cucuUatis, margine bi- trifidis. 



Hab. Usambara (Holst); Kamerun (Jungner); Angola: Fluilla (Antunes). 



21. Symphyogyna semi-involucrata Austin. Torrey Bot. 

 Club Y, p. 15. 



Dioica, mediocris, pallide virens vel rufescens, tenera. Frons pro- 

 cumbens, ad 2 cm longa, 3 mm. lata, undulata. integerrima, poslice 

 ramosa, rare furcata, ramis interdum curvatis, apice decurvo radicantibus 

 et alas erectas conduplicatas gerentibus. Costa angusta, postice valde 

 producta, in sectione semicircularis, abrupte in alas attenuata, medio 

 12 cellulas crassa. Alx tenerrimae interdum irregulariter interruptee et 

 sublobatsfi, apice profunde inciso-biloba;. Cellulœ alarum ad costam 

 45 X 72 [j,, medio 45 X 45 [)., margine 27 X 45 (x. Squama fem. parva, 

 plus minus profunde bifida vel trifîda, laciniis lanceolatis, irregularibus, 



339 



