CoLo-LEJEUNEA. 299 
transversa inserta, oblique ovalia oblongave, interdum fere ligulata, 
seepe subdimidiata, apice rotundata, facie, marginem anticum apicem- 
que versus, necnon in ipso margine, scaberula, caeterum levia integer- 
rimaque, recte complicata; lobulus 2—4-plo brevior ovato-rectangu- 
laris basi turgidus; supra medium planus appressus, apice bidentatus; 
cellula mediocres, subleptodermes, inferiores sensim longiores, ad 
folii marginem anticum apicemque minores papilla brevi aucte, 
ceeterze subplane, 
Flores monoici: 2 inramo seepe iteratim innovando terminales. Bractez 
foliis plus duplo breviores complicate, lobo ligulato obtuso, lobulo 
sat minore lanceolato acuto, altera bractea longe minore; bracteola 
nulla. 
Perianthia emersa, f. caulinis breviora, cuneato-pyriformia compressa 
brevi-rostellata truncata v. obcordata, postice bicarinata (carinis 
demum in unam fere confluentibus) facie tota, ad margines compla- 
natos carinasque preecipue, cellulis in papillam alte conicam acutam 
elevatis exasperata. 
Andreecia ramos tenninantia laxiuscula; bracteze 6-10-juge, inferiores 
distantes inzequaliter bilobz, superiores sensim minores tote fere 
complicate. 
Var. levigata. Duplo minor; foliis angustioribus (45 x ‘2™™), lobulo in- 
flato-fusiformi; bracteis longioribus, perianthii carinis angustioribus. 
—Ad fl. Amazonum et Negro, necnon in M. Tunguragua (alt. 
2200"), 
Var. elobulata. Parvula, foliorum lobulo plane nullo.—Ad rivulum 
Cauapuna juxta Venezuele confinia borealia. 
The radicles leave the stem, from the base of each leaf, in a short 
cylindrical fascicle, then spread out into a disciform haustorium, as ir 
Odonto-Lejeunea. 
In the inflated base of one leaf I found seven closely-packed small 
spherical muriculate bodies, probably eggs. 
9. CoLo-LEJEUNEA PLATYNEURA, Spruce. 
Hab. 8. Gabriel, juxta fluvii Negro cataractas, in arboris folio vivo. 
F -4x°3, lob 125-15 x°1, c. medi p~o-ay; submarginales zA5; br 3x1; 
per -5 X 4mm, 
Pusilla pulchella tenuis rufula arcte appressa; caules 1}-pollicares parum 
ramosi. 
Folia subimbricata, angulo axiali sub 70° patentia, basi perbrevi affixa, 
oblique ovato-oblonga sublinguzeformia, rotundata, margine antico 
minute celluloso-erosula, postico subrecte complicata; lobulus sub- 
horizontalis, deorsum convexus, folio sub 3-plo brevior, ovato-fusi- 
formis subinflatus, apice exciso-acutus; cellule inferiores medieque 
multo majores subelongate vacue, nervum latum simulantes, sub- 
apicales et submarginales (plurium serierum juxta marginem anti- 
cum) minutissime guttulatee muricato-subprominule. 
Foliola 0, eorum loco ad cujusque folii basin adest haustorium. 
Fl. monoici: ? in ramis brevissimis terminales, innovatione paucifolio 
suffulti; bracteze foliis breviores, altera (innovationi adnata) ad 
medium bifida, lobo ligulato obtusato, lobulo rhomboideo subacuto 
lobo subzequilato sed breviore; altera bractea duplo minor fere xequa- 
liter bifida; bracteola 0. 
