27. P. lanigerum (Spruce) St. 

 Syn. Aitonia lanigera Spruce. Bot. Soc. Edimb. XY, p. 568. 

 Monoica vel dioica, minor, in latas plagas expansa, tenuis, pallide 

 viridis, margine et postice purpurascens. Frons usque ad 15 mm. longa, 



7 mm. lata subplana, alis altenuatis plicatulo-crispatis, crenulatis, costa 

 angusta. Stomata parva, poro minimo, cellulis 5 obconicis circumdato; 

 cellulae epidennidis triuune inrnissata: ; squamoe poslic;e rosea^ oblique 

 ovalffi, longe appendiculatse, appendicula basi haud constricta, squamte 

 a>quilonga, lanceolata, acuta. Carpocephala pedunculata, pedunculo tenui, 



8 mm. longo, apice barbato, paleis filiformibus. Capitula biloba, verlice ad 

 1 -\ exciso-bicornuta. cunmbus recurvo-conniventibus. Sporae 68 Ela- 

 teres 205 ^ bi-quadrispiri. Andreecia bifurcata, flori femineo approximata 

 vel in fronde propria. 



Hab. Andes quitenses (Spruce). 



c. Incertae sedis. 



28. P. Schimperi St. n. sp. 



Dioica, magna, pallide-virens, lenuis. Frons usque ad 2 cm. longa, late 

 obcordata, 15 mm. lata, ex apice innovata vel dicholome ramosa, ramis 

 late obconicis, plana, costa lata, marginibus minus attenuatis. Stomata 

 magna parum convexa. poro cellulis 5-6 obconicis, 3-4 seriatis circum- 

 dato. Squamse magnse, sanguineje, late semilunahe, longe appendiculata?, 

 appendiculis anguste ligulatis, basi constrictis, apice breviter acuminatis, 

 acutis. Andrcecia in disco magno, paleis brevibus lanceolatis purpureis 

 cincta. Reliqua desunt. 



Hab. Abyssinia. in monte Semen (Schimper). 



Facile distinguenda fronde latissima. 



29. P. extensum St. nsp. 



Dioica, glauco-virens, subtus purpurea, valida, carnosa, in latas plagas 

 expansa. Frons 3-4 cm. longa, 5 mm. lata, simplex vel furcata, late 

 linearis, costa crassa bene producta, alis attenuatis, antice plana. Stomata 

 parva, poro minimo, cellulis 4-5 obconicis circumdato; cellulae epider- 



