292 CoLo-LEJEUNEA. 
omnibus Lejeuneis diversum, quoad foliorum formam sat variabile, in 
duas sectiones naturales (fere subgenericas) perianthii forma bene divi- 
dendum: sc. 
I, PHYSOCOLEA, perianthits turgidis argute 5-carinatis, rarissime fere 
ecarmnatis, 
II. Leprocouga, perianthiis valde compressis, sepe obcordatis, postice 
convexis carinisque 2 (demum subobsoletis) percursis. 
Physocolee caracteres pleniores sunt qui sequuntur. 
Plante pusill, alize preeminutz, prostpatee, plagulas tenues—vix unquam 
stratificatas—sistentes, raro ramis assurgentibus ceespitulosee. Caules 
fragiles subfasciculatim, raro pinnatim, ramosi, ramique geniculato- 
flexuosi, folium ad quemque flexuram proferentes. 
Folia sepius dissita, basi perbrevi fere transversa inserta, subrotunda 
ovaliave, ¥. margine postico fere toto incurva turgidaque, v. solum 
concava, cochleariformia, lobulo dimidium folium fere sistente v. 
ad dentem redacto; raro angustiora acuminataque, levia papulo- 
save, rarissime muriculata; cellule parvee (medi ~,—g,mm. dia- 
metro), fere semper leptodermes planz v. obtuse (raro acute) pro- 
minulee. 
Foliola nulla. Radicelle seepe cuique folio tribute, pauce, fasciatee 
penicillateeve. 
Flores monoici, rarissime dioici. Rami 9 innovati; bractez foliis vix 
diverse, inter se et a perianthio swepius dissite, raro complicatze, 
parvi-lobulatz vel non ; bracteola 0. 
Perianthia turbinata, raro longe pyriformia, turgida, alte 5-carinata (in 
unica sp. fere ecarinata) carinis seepius papulosis, raro muricatis, post 
capsulam emissam elongata et quasi-stipitata. 
Andreecia varie posita; bracteze seepe magne, pauci-multijuge, monandre. 
Leptocolea a Physocolea differt perianthii forma, necnon colore sepe 
rufescente, foliis planioribus oblongis sublingueformibus, lobulo normali 
parvo interdum fere obsoleto; bracteis multo minoribus complicatis, 
altera (minore) seepe fere sequiloba. 
Hab. Species Americ tropic plurimee foliicol filicicoleeque, paucee 
in arborum truncis ramulisque, preecipue inundatis; Europe in arborum 
fruticumque (Quercus, Ulicis, Callune, etc.) cortice, etiam ad rupes, in 
Lrullaniis perseepe parasitantes. 
Distr. In America eequatoriali 11 species legi, quarum 7 (omnes novee ?) 
ad § Physocoleam pertinent—una per totam continentis latitudinem, ab 
oris atlanticis ad pacificas usque, obvia, etiam in Andes sylvaticos ad alt. 
2000™ usque ascendit; caetersze omnes extra planitiem ‘Amazonicam haud 
vise. Ad § Leptocoleam referendee sunt species 4, quarum 2 antea inde- 
scriptee, omnes planitiicolee nisi C. L. micrandracia n. sp. in Andibus 
Peruvianis alt. 500™ semel inventa.—Aliz Colo-Lejeunew ab auctoribus 
descriptee sunt 10 (vel plures) species, sc. 3: L. minutissima Sm. (= L. 
inconspicua Raddi), L. calcarea Lib., et L. microscopica Tayl., insulis 
Britannicis (Hibernia preecipue), 2 priores etiam in Europa continentali et 
America bor. temperata, indigene; 4 vel 5 Americee tropice adscriptze et 
3 paleotropice, quae omnes iterata examinatione egent. 
I. PHyYsocoLEa. 
1. Folia basi postica lobulo tertio (stylove) minuto digitiforma wucta. 
[C. L. calcarea Lib. ¥. concinne disticha, facie muriculata, margine muri- 
