CoLo-LEJEUNEA. 301 
eauli fere parallelus; cellule parvule, apicalibus deformatis ex- 
ceptis, subconformes, acute hexagon paulo elongate leptodermes, 
ambitu interno anguste opacze. 
Foliola nulla nisi patella radicellifera ad cujusque folii basin. 
Flores monoici: @ in ramo iteratim innovando terminales. Bractez 
foliis paulo breviores, lobulo parum latiore, caeterum conformes; 
bracteola 0. 
Perianthia vix emersa late obovato-pyriformia valde compressa, rotun- 
dato-truncata-retusulave —interdum obcordata—-cum rostello per- 
brevi, antice convexula, postice primitus obtuse bicarinata, carinis 
approximatis, demum solum alte convexa ventricosave, leevia. 
Amenta ¢ folio caulino sublongiora julacea; bracteze 4—6-jugze majus- 
cule scariosee. 
Anne revera planta Montagnei, cui tributa sunt folia lobulo minore, 
angusto vel rotundato, et bractcolam semper presentem (Syn. Hep. 1.c.)! 
—Montagneus ipse autem dicit “amphigastrium [involucrale] nul- 
lum reperi.” 
Suscenus XXX VI.—DIPLASIO-LEJEUNEA, S. 
Plante pusillz pallide rufee, strato tenui arcte repentes. Caules 4—$-pol- 
licares fragiles parum ramosi. 
Folia magna tenuia subcontigua basi perangusta inserta, oblongo-ro- 
tunda, apice lato plana (nec convoluta) infra medium (interdum bis) 
complicata; plica lanceolata subinflata margine (apice) vel bidentata 
vel in dentem subulatum protracta; cellule parvule vel fere 
minute, subplane, pariete vel subtenui vel ad angulos mediaque 
latera incrassato. 
Foliola duplicata (¢.e. cuique folio tributa) foliis 2-4-plo breviora, late 
cuneata bitida-partitave, segmentis angustis acutis pro more diver- 
gentibus, radicellas fasciatas prodentia. 
Flores monoici vel dioici: @ in ramo brevi longioreve terminales, inno- 
vatione simplice proliferave suffulti. Bracteze parvee complicate 
subeequilobe; bracteola bifida (raro solum retusa) segmentis erectis. 
Perianthia oblonga parum compressa brevirostria preealte 5-carinata 
leevissima. 
Andreecia plerumque ramulo parvo constantia; bracteze 2-8-jugee parvee. 
Hab. In arborum foliis vivis et in filicibus, perseepe aliis hepaticis 
(preecipue Frullaniis) irrepens. Altera species Austro-americana supra 
planitiem parum ascendit, altera regioni Andium sylvaticee medi propria 
est. 
Distr. Species sub 7 cognovimus, terris tropicis austrinisque indigenze, 
quarum 5 Americanz, ab Antillis ad Brasiliam et Peruviam usque dis- 
persee, 1 Africana (L. Kraussiana Ldnbg.) et 1 Tasmanica (L. lyratifolia 
i ieb .). 
1. D.-L. pellucida. Dioica. F. basi simpliciter plicata, plica longe uni- 
dentata. Foliola bipartita, laciniis lanceolatis late divergentibus. 
Bracteola 9 foliolis subconformis, laciniis autem erectis. Per. ob- 
longa. 
