ARCHI-LEJEUNEA. 93 
base (or insertion) of the lobe and lobule is along two nearly contiguous 
lines parallel to the axis of the stem, on whose surface they ascend to 
nearly an equal height, the lobe very slightly higher than the lobule. 
4, ArcHI-LEJEUNEA RECURVANS, Spruce. 
Hab. Per fl. Negro totum ad arbuscularum ramulos foliaque, praecipue in 
sylvis “caatingas” circa S. Gabriel et S. Carlos. 
Fi4x°-9; lob -7x°4); cy; f'* 6x7; br. lob 15x75 br'* 12x65 per 
I Gpaccp a. 
Pallide rufa. Caudices longe repentes caules subramosos szepe prolifero- 
innovatos horizontaliter ultra matricem patulos stratificatosque pro- 
ferentes. 
Folia laxe imbricata, patula, sicca subtortilia nec autem decurvo-secunda 
nec convolutiva, tenuia pellucida, semicordato-oblonga ovatove-ob- 
longa, obtusa vel rotundata, a basi ad medium usque complicata, 
biloba, margine ad lobuli apicem vix (vel non) subsinuata, margine 
antico toto late recurva; lobulus magnus = folii $, ovato-rhomboideus, 
inflatus, et vel totus involutus vel ad plicam ventricosus margine tamen 
subplanus, apice longiusculo acutus vel seepissime incurvo-apiculatus ; 
cellule mediocres subsquilatere pellucide, margine lato subopaco 
cincta, fere vacuee, inferiores sensim multo majores pellucidioresque. 
Foliola lobos vix dimidios velantia, foliis duplo et ultra breviora, sub- 
contigua, rarius subimbricata, reniformi-orbiculata (sed e margine 
toto recurvo subrotunda videntur) perpaulo latiora quam longa, basi 
excavato-amplexantia minime autem cordata. 
Flores dioici: 9 terminales, innovatione (seepe monotropo-innovando- 
prolifera) suffulti. Bractes foliis perpaulo longiores profunde com- 
plicato-bilobze, lobo oblique ovali acuto obtusove, lobulo 3-plo minore 
lanceolato subacuminato; bracteola obovata emarginata, sinu apici- 
busque subacutis, margine repando. 
Perianthia emersa, pyriformi-oblonga retusula brevi-rostellata, compres- 
sula, antice depressa—raro apicem versus carinulata—postice acute 
bicarinata, carinis omnibus subalato-asperulis = pellucida, cellulis 
vix elongatis conflata. 
A L. uneiloba Lindenb. certe distincta, preecipue foliis longioribus 
laxioribus pellucidioribus, margine supero recurvo-subsquarrosis, siccando 
subsquarrosis subtortilibus, lobulo duplo fere majore inflato; bracteola 
solum emarginata; demum perianthii carinis semper exasperatis. 
5. ARCHI-LEJEUNEA CRISPISTIPULA, Spruce. 
In arborum vetustarum cortice secus fluvios Negro et Uaupés, locis Vana- 
uaca, S. Gabriel, Panuré, &e.; in M. Campana Andium Peruviano- 
rum. 
F 8x6; lob -3x‘13; ¢ gy; f™ *4x°6; br. lob 115x°4; bre Ox*75 : 
pero xX ge™. 
Tenella rufula laxe czespitosa. Caules e caudice repente assurgentes parce 
et subfastigiatim ramosi, pollicares. 
Folia late imbricata ovato-elliptica rotundata subplana, basi antica dila- 
tata vix semicordata, integerrima subrepanda, paulo intra medium 
profunde abrupte sinuato-complicata, plica recta; lobulus $ folium 
vix equans, subplanus lineari-rhomboideus v. fere rectangularis, mar- 
gine interno cauli parallelo, apice acuto apiculatove; cellule parvule 
