217, CERATO-LEJEUNEA. 
Foliola subdistantia foliis duplo breviora ovata ultra } bifida, segmentis 
tenui-acuminatis, margine recurvulo integerrima. 
Flores dioici: in ramulis breviusculis terminales, innovatione simplice 
suffulti. Bractez foliis breviores bipartite, lobo ovato-lanceolato 
acuminato ciliato-spinoso, lobulo subbreviore multo angustiore lan- 
ceolato acuminato, (vel altero truncato-bispinoso) subintegerrimo ; 
bracteola ovata profunde bifida, segmentis longissime acuminatis, 
integerrima. 
Perianthia haud vidi, sec. cl. Gottsche le. sunt clavato-urneformia 4- 
cornia, cornibus magnis latis compressis. 
Suncenus XXV.—TAXI-LEJEUNEA, 8. 
Omphalanthus N. et Ldng. Syn. Hep. ex p.; Lejeunea Mont., 
Syn. Hep. ex p. 
Plante grandiusculze, strato tenui late repentes, albido-virides—nunquam 
rufulz fusceeve—laxe texte pellucide. Caules tenues flaccidi laxe 
pinnati subsimplicesve, primum repeutes dein seepe penduli apiceque 
indefinite evoluti ; rami 2 parvi-paucifolii iteratim innovandi, flori- 
bus secundis confertis onusti. 
Folia laxe imbricata contiguave, majuscula vel magna, in Codonocoleis 
circiter 1-2 (-9-1°6)™™, in Pyramidocoleis ‘8 (-6-1'1)™™ longa, tenera 
subplana, plus minus ovato-triangularia, pro more acuta subacu- 
minatave, in paucis rotundata, apice serrata integerrimave, lobulo 
basali minuto vel seepissime nullo; cellule mediocres (44—37™™) vel 
etiam majusculee (;5-4™™), leptodermes, endochromio parco pellu- 
cidie, plane vel marginales convex. 
Foliola mediocria, magna, vel etiam maxima—vix unquam parvula—in 
paucis folio equimagna vel imo submajora—integerrima vel solum 
celluloso-crenulata, breviter, raro ultra medium, bifida, rarissime 
integra. 
Flores omnium fere monoici*: Q ad ramulos innovatos terminales, 
quasi-seriati; bracteze pro more parva lanceolate seepissime denticu- 
latee, lobulo parvo nullove; bracteola ovalis bifida bidentatave raro 
integra. 
Perianthia pro more parva pellucida obconica vel obpyramidata, angusta, 
vix compressula, vel omnino ecarinata vel apice solo—vel denique 
fere a basi—5-carinata, plerumque rostellata, leevia vel ad carinarum 
apicem cristulata. 
Amenta ¢# lateralia, folio caulino breviora, seepe minuta, tenuia, oligo- 
phylla, incurva. MRarissime adveniunt amenta longiora in ramis 
terminalia. 
In sectiones duas dividenda est Taxi-Lejeunea, sc. 
1. Codonocolea, perianthiis parvis tenerrimis obconicis et, vel omnino 
ecarinatis inermibusque, vel ipso apice carinas 5 (seepe cristatas) osten- 
dentibus,—Folia magna seepius apice serrata; cellule interdum majuscule, 
ad 4" long. Foliola seepe maxima, ipsis foliis submajora, aliarum 
* Taxi-Lejeunee omnes, quarum fructus adhue cognovimus, monoice sunt. 
In perpaucis speciebus, cum Pyramidocoleis ex habitu simili hie collocatis, 
flores alterius sextis et perianthia ignota remanent. 
