Plagiochasma. franz stephani. species iiepaticarum. 781 



7 mm. longo, tenui, apice breviter barbato; capitula vertice concava, 

 lsevia, involucra 2. Sporœ 68 \l. Elateres 290 ja, bi-vel trispiri, spiris 

 anguste tortis. Andrœcia in ramulis propriis ex apice vel e latere coslse 

 ortis. 

 Hab. Nepal (Wallich), Himalaya (Hooker, Duthie). 



9. P. microcephalum St. in Engler. Bot. Jahrb. 1895, p. 301. 

 Monoica, parva, lenuis, viridis, margine et postice purpura scens. Frons 



2-3 cm. longa, furcata, subplana, marginibus attenuatis plicalulis; costa 

 angusta parum prominente; stomata parva, poro amplo, cellulis 8 obco- 

 nicis et parvis circumdato. Squamae ventrales haud imbricatse, rosese vel 

 purpureee, late semilunatse, appendiculo magno ovato, breviter acuminato. 

 Carpocephala numerosa, pedunculo filiformi, nigro, usque ad 15 mm. 

 longo, apice longe barbato. Capitula minuta, vix 1 mm. lata, vertice 

 truncata vel leniter emarginata, lobi pro more 2 oppositi, apice haud 

 mamillati. Andrœcia minuta, pedunculo approximata, ostiolis paucis, 

 purpureis mamillatis. Sporae 50 p, Elateres 220 [i, bispiri. 

 Hab. Africa orient. Usambara. 



10. P. eximium (Schffn.) St. Engl. Bot. Jahrb. 1895. XX. p. 300. 

 Aitonia eximia Schiff. 1. c. 



Dioica, longe lateque csespitans, major, fusco-olivacea, margine postice- 

 que purpurea. Frons 3-4 cm. longa, 6-7 mm. lata, tenuis, ex apice repetito 

 innovata, rare dichotome ramosa. Costa angusta, parum producta margi- 

 nibus tenuibus adscendentibus, crispato plicatulis. Squamae ventrales 

 magnée, purpurese, oblique semilunatae vel subovatse, longe appendiculatee, 

 appendiculis ad 2 vel 3, ligulatis vel abrupte lanceolatis, acutis, quinluplo 

 longioribus quam latis, seepe crispatis, marginem superantibus. Stomata 

 convexa, magna, cellulis obconicis 6-7, et 4 vel 5 séria tis circumdata. 

 Pedunculus 1 cm. longus, alte pïuricarinatus, apice parum breviterque 

 barbatus. Capitula parva, vertice profunde lateque excisa, 2-4 lobata, 

 lobis erecto-subcornutis. Sporœ 68 {j. late reticulatim alataa, rufescentes. 

 Elateres 250 ^, bispiri, spiris laxe tortis flavescentes. Andrœcia ignota. 



Hab. Kamerun, Buea (Preuss) in caverna humida, 2500 m. 



11. P. Beccarianum St. n. sp. 



Monoica, mediocris, pallide virens, subtus atropurpurea. Frons usque 

 ad 2 cm. longa, 4 mm. lata, ex apice innovata, raro furcata, antice plana, 

 postice plano-convexa, alis attenuatis. Stomata magna, poro amplo, cel- 



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