Pycno-LEJEUNEA. 247 
Flores monoici vel dioici: Q terminales, innovatione simplice v. iterum 
innovata suffulti. Bracteze foliis longiores incurvo-conniventes com- 
plicato-bilobee, lobis subinzequalibus acutis acuminulatisve, integer- 
rime, interdum ad carinam alate; bracteola lata bidentata v. 
integra. 
Perianthia emersa obovato-pyriformia turgida vix compressula brevirostria 
argute 5-carinata sublevissima. Calyptra rufa. Capsula globosa 
magna, 
Andreecia ramigena, seepius terminalia; bractez pauci-plurijuge majus- 
cule. 
Obs. Affinitatem habet cum Huosmo-Lejewnea, ex odore leniter suavi et 
foliolis majusculis, longe diversa tamen habitu, foliis confertissimis pellu- 
cidissimis ete.; etiam cum Trachy-Lejeunea e foliis papillosis interdum 
ocellatis, a qua distat foliis preelatis confertissimis, foliolis multo majori- 
bus, perianthiis levibus, etc. Cheilo-Lejeunea statura minore, cellulis 
obseuris (e chlorophylli annulo opaco) et perianthiis compressis demum 
bilabiatis magis remota est. 
Hab. Insylvis planitierum densis, ad arborum corticem, interdum alias 
hepaticas infestans. 
Distr. Subgeneris mere tropici ipse solum 2 species legi, se. L contigua 
Nees, jam antea in Mexico, Brasilia et Guiana (imo in ins. Mascarenis ?) 
lecta, et L. macroloba Mont. (a qua vix differt L. callosa Ldnbg.) e Guiana 
allata. Alize paucze species, sc. L. Hampeana Ldnbg., L. inflata N. ete. 
neotropice sunt; L. trapezia N. e Java habemus. 
1. Pyeno-L. contigua. Monoica. Folia ocellata papulosa, lobulo 4-plo 
breviore ovato inflato. Foliola segmentis acutis. Bracteze lobo 
subobtuso, cum bracteola integra bidentulave basi connate. 
2. Pycno-L. macroloba. Dioica. Folia exocellata praalte papulosa, 
lobulo paulo breviore in cylindrum convoluto. Foliola segmentis 
apiculatis. Bractez ad carinam alate, lobis acuminulatis; bracteola 
libera breviter bifida. 
1. Pycno-LEJEUNEA ConTIGUA, Nees. 
In Mart. FI. Bras. I., p. 360. G. L. et N. Syn. H. 362. 
Hab. Fl. Amazonum, prope Pard, Santarem et Obidos, necnon ad fl. 
Negro cataractas, in cortice. 
F -63x°5, lob 15-2; ¢ a; f' -25x°35; br ‘8-45; br’ "7x ‘5; per 
Tax apa 
Albescens, pellucidissima, plagas circumscriptas lis Radule complanate 
similes efficiens. Caules $~1-pollicares, ineequaliter pinnatim ramosi, 
matrici arcte adheerentes, implexi, ramis zequifoliatis, raro plus minus 
microphyllis, 
Folia arctissime imbricata, assurgentia, insigniter fornicato-concava (mar- 
gine toto incurvulo), late semicordato-oblonga—alia paulo latiora 
quam longa—szepe subrhombea, angulis rotundatis, repandula, facie 
papulosa margine postico sinuato-complicata; lobulus folio 4-plo 
brevior anguste ovatus inflatus, apice acuto seepe involuto; cellule 
parvulz zquilaterze pellucide, 4-10 basin versus duplo majoribus 
vacuis, vel sparsis vel in maculam collectis, ocellatee, omnes (margin- 
alibus exceptis) papuloso-prominulz, leptodermes, granis chlorophylli 
(oleiferisque, elongatis seepe flexuosis) cellule ambitu, vel hic illic, 
