784 BULLETLN uii L^HKRBiEU BOissiER. Plagiochasmii. 



16. P. nepalense (Ldbg et Bisch.) St. 



Syn. Anthrocephalus nepalensis L. el B. Nova Acta XYIIl. p. 082. 

 Plag. Colsmannianum L. etG. Syn. Hep. p. 518. 



Dioica, mediocns, viridis, postice purpurascens. Frons usque ad 2 cm. 

 longa, 6 mm. lata, e latere costte innovata, plana, costa crassa, magis 

 producta, alis atlenuatis venoso-strialis, plicalulo-crispalis, adscenden- 

 tihns. Stomata parva,poro minulo,cellulis o obconicis oircumdato; cellulce 

 epidennidis trigone incrassatee. Squamie parvse imbricatce, purpureae, 

 apice sensim attenuatce, in appendiculum hyalinum anguste Irigonum 

 subobtusum abeuntes, appendicula interdum geminata, basi nunquam 

 constricla. Carpocephala (ipse haud vidi) pedunculata, pedunculo longiore 

 barbato, paleis numerosis. rubris. Involucra solitaria vel 2 opposita, capi- 

 tuli discus emarginatus, bene evolutus, crassiludine ab involucris dis- 

 tinctus. Sporse? Elateresf Androecia furcata. 



Hab. Nepal (Wallich). 



17. P. chlorocarpum. Mont in Orbigny. Yoy. Am. mer. Bot. p. 59. 

 Dioica, major, pallide viridis, postice purpurea. F?^ons usque ad 2 V^ cm. 



longa, 8 mm. lata, costa angusta, alis latis adscendentibus, attenuatis, 

 phcatulo-crenulatis. Stomata parva, poro minimo, cellulis 4, obconicis 

 circumdato, parietibus radialibus valde incrassatis, stellatim attenuatis; 

 cellulse epidermidis trigone incrassata?. Squamse posticce magna?, oblique 

 ovatse, purpurecB, appendiculis duplo brevioribus, ligulalis, breviter acu- 

 minatis, acutis, interdum geminatis vel ternis. Carpocephala longe pedun- 

 culata, pedunculo usque ad 2 cm. longo, tenui, apice longe barbato, 

 vertice anguste breviterque emarginata, angulis mamillatim productis, 

 haud cornutis. Sporae 68 ^. Elateres 270 [x, trispiri saepe ramosi. Capsula 

 tenerrima. Andrcecia ignota. 

 Hab. Chile (Bertero. Gay). 



18. P. validum Bisch. Term. II, p. 56. 



Dioica, major, robusta. Frons usque ad 3 V^ cm. longa, 6 mm. lata, 

 simplex vel furcata vel ex apice prolifera, plana, alis latis adscendentibus, 

 postice purpurascens, costa angusta, parum producta, longissime radi- 

 cellosa. Stomata parva, poro minimo, cellulis 4-5, obconicis circumdato, 

 parietibus radialibus valde incrassatis, stellatim attenuatis. Squamse 

 imJjricatai, late semilunataj, abrupte (interdum geminatim) appendiculata?, 

 appendicuhs anguste ligulatis apice acutis. Carpocephala longius pedun- 

 culata, pedunculo basi maxime crasso et longitudinaliter rimoso, superne 



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