430 LOPHOCOLEA. 
mentis acuminulatis, bracteola exterior sat brevior, ad 4 bifida, 
medio margine utrinque sepius unidentata. 
Perianthia altiuscule emersa trigono-prismatica subcampanulata; angulis 
exalatis, rarius alé brevi angusta—szpe ad dentes 2 v. 3 prominulos 
redacta—auctis, ore trilabiata, labiis grosse inciso-dentatis, interdum 
bifidis. 
Obs. The Mexican plant differs from the Andine solely by the more dis- 
tinctly-winged perianth. The branches and innovations spring from the 
inner side of the postical basal angle of a sideleaf and from the conti- 
guous angle of an underleaf, being partially veiled at its origin by both; 
yet the branch base is never actually contiguous to the underleaf, but to 
the postical leaf-base, which is itself imbricated by the underleaf. The 
innovations arise from the leaf next below the two pairs of bracts, or 
(more rarely) from the axil of one of the outer bracts ; and they diverge 
considerably at each successive innovation from the primary direction of 
the axis, whether stem or branch. 
7. LopHOCOLEA IRRIGATA, Spruce. 
Hab. in rivuli saxis irrigatis prope Tarapoto Andium Peruvianorum. 
FAl5x125 egy; f@ °4x°45™. 
Majuscula fuscidula; caules bipollicares prostrati flaccidi flexuosi, 
ramum hie illic (sepe parvifolium) ex angulo folii lateralis postico 
edentes. 
Folia plane alterna, parum imbricata, horizontalia, basi lata oblique 
longitudinali inserta, ovata, apice varia, rarissime rotundata ; alia 
autem retusa, alia lunulato-bidentata, alia obsolete trilobulata, 
apicibus obtusis raro acutis; cellule mediocres subequilatero- 
hexagon leptodermes, annulo lato opaco intus circumdate. 
Foliola sub 4plo breviora, hine cum folio proximo decurrenti-connata, 
subquadrata, profunde bis bifida, laciniis subdivergentibus, crebre 
radicellosa. 
L. aberrans, huic affinis, habet folia basi angustiora, ambitu oblonga ; 
foliola pro plantula longiora semel bifida. L. rivalis Tay]. foliis e basi 
latissima, multo latioribus quam longis, &c. diversa erit. 
8. LopHOcoLEA BRACHYDONTA, Spruce. 
Hab. In rupibus fluvii Verde (fl. Pastasa affluentis) irrigatis. 
L. aberranti L. et G. affinis, major est, lurida. Folia majora, pauca 
inferiora retusa, superiora lunatim emarginata bidentatave, dentibus 
brevi-acutis, cellulis paulo minoribus magisque opacis. — Foliola 
duplo majora (8 x ‘65, ‘7 x °65™™) rotundiora ad $ solum bifida v. 
ineequaliter quadrifida, segmentis subulatis v. triangulari-acuminatis. 
sractese subrotunds, inzequaliter emarginato-bidentatz, seepe hine 
vel utrinque apicem versus spina armatze, toto margine hic illic sub- 
denticulate ; bracteola vix diversa. 
L. rivalis Tayl.! ex insulis Falklandicis, folia habet pro more dissita, 
tenuia, flaccida, multo latiora quam longa, basi latissima, apice 
rotundata retusulave. Foliola iis L. brachydonte conformia nisi ut 
subcuneata.—Forsan ad L. aberrantem propius accedit. 
9. LopHocoLeaA Martiana, Nees in Syn. Hep. 
Hab. in sylvis ripariis fluminis Amazonum ab ejus ostiis ad radices 
