DrENDRO-LEJEUNEA. bila 
lobulus folio 5—-G-plo minor, rhombeus, involutus et subsaccatus (unde 
ovoideus videtur), sinu exciso-acuto, plica ultra sinum excurrente; 
cellulz minutissimz, opacze, subeequilaterze, seepe subquadratee, supe- 
riores paulo longiores quam lati, leptodermes, fere plane. cuticula 
papillulosa, vittee autem 3-4-plo longiores intus plurisinuatie. 
Foliola dimidium folium parum superantia, subimbricata, oblongo-sub- 
rotunda, apice emarginato-truncato parce et argute dentata. 
Flores dioici: 2 in ramo terminales, innovatione unilaterali, vel duabus 
oppositis, suffulti. Bracteze foliis longiores, erectee, ad basin fere 
usque bipartitee, lobo oblique ovato-lanceolato sensim acuminato, 
supra medium spinoso-serrato, dentibus sursum hamatis, lobulo duplo 
minore subangustiore, apice subtruncato acute 3-4-fido; bracteola 
equilonga lanceolato-ligulata, apice breviter bifida, segmentis acu- 
minulatis, margine toto fere subduplo inciso-serrata-spinosave. 
Perianthia altiuscule emersa, a basi obconicA rectangulari-oblonga, com- 
pressa, triquetra, facie anticé 2-carinulata, lateralibus minus distincte 
1—2-carinulatis, apice obcordata brevirostria, margine supero laciniato- 
cristata, laciniis hamatis, cristulis rudimentariis quoque ad carinam 
posticain carinulasque adjectis. Calyptra valida, perianthio brevior 
angustiorque, clavato-turbinata (basi obconica, apice globosa). 
Andreecia in planta propria, in ramis terminalia, longispica. Bracteze ¢ 
sub 10-juge, haud confertz, foliis sat minores, ad } bilobe, inflato- 
complicate, lobis oblique ovatis apiculatis acuminulatisve acutis 
integerrimis vel subdenticulatis, inferiore paulo minore; antheridia 
magna binata globosa, stipite tenui equilongo suffulta; bracteolee 
ubique obviz, patule, oblongo-cuneate acute bidentate, apicem 
versus 1-3-denticulatze. 
Suscenus IX.—BRYO-LEJEUNEA. 
Frullania subg. Bryopteris Nees, Hep. Eur.; Bryopterts N. et Ldng. Syn. 
; Hep. 284. 
Plant elate 3-12-pollicares robuste, olivacez vel nigro-badixw, raro 
virides flavideve, czespitose stratificate. Caules e caudice repente 
radicelloso erecti pendulive, validi nigrescentes; in typicis (Pinnatis) 
plumeformi-pinnati, ramis suboppositis, deinde bi-vel etiam tri- 
pinnati, ramique arhizi, siccando julacei ; in Dichotomis iteratim 
dichotomi; ramulis 9 in omnibus brevibus simplicissimis siepe 
crebris. 
Folia plus minus imbricata distiche patula, siccando convoluta, magna 
(1°5-2°1™™), subduplo longiora quam lata, semicordato-ovata acuta 
accuminatave, apice serrata; lobulus 3-5-plo brevior, raro minutis- 
simus, inflatus vel subplanus, paucicrenulatus integerrimusve ; 
cellule superiores parve vel fere minut subelongate, inferiores 
autem majores duplo longiores (vittam medio folio interdum sis- 
tentes) convex planzeve. 
Foliola foliis subduplo breviora subquadrata, apice late rotundato argute 
dentata. 
Flores dioici, raro-monoici: 2 ramulo brevissimo laterali constantes, 
innovatione nulla; bractexe 3-6-jugse, intime foliis sublongiores 
complicato-bilobe inciso-serrata, lobis acuminatis, antico lanceolato, 
