4353 LOPHOCOLEA. 
magisque quadrate ; interiores, eodem fere diametro, corticalibus multo 
longiores, longitudine latitudinem 3-4plo excedente, sectione verticali 
lineari-rectangulares-rhomboidezve. 
Foliola utrinque insigniter decurrentia, insertione super caulem 
figuram alte parabolicam monstrantia, isthmo latiusculo cum utroque 
folio collaterali connata. 
Perianthia unistrata—solum in ipsissima basi bistrata. 
10. LopHocoLEA MARTIANA Nees. v. PERISSODONTA, S. 
(Lophocolea perissodonta, Spruce Mst.) 
Hab. in truncis cariosis per sylvam Amazonicam, juxta cataractas fl. 
Negro et Uaupés preecipue ; etiam circa Pard. 
F 2-0 longa, basi 1:2, apice ‘5, lata; ¢ do 3 f °7x°55; br 2°7-40x15; 
be cS & PAs per 50x Poa 
Robusta prostrata, pallide viridis, in plagas latissimas extensa ; caules 3-6- 
pollicares rufi flexuosi tota longitudine densifolii, valde implexi, 
radicellis copiosis arcte adheerentes, pauciramel, ramis pro more 
abbreviatis floriferis, nonnumquam bi-trifidis. 
Folia horizontalia plana opposita, late (basi ultra dimidium) imbricata, 
apice vix dissitiuscula, elongato-triangularia, apice truncato-bispinosa, 
sinu lunulari, spinis brevi-subulato-setaceis rectiusculis (sub- 
parallelis), margine postico perpaulo convexo medium versus spina 
longa (raro 2-3) armata; cellule majusculee fere equilateree sub- 
leptodermes subvacuee. 
Foliola imbricata, utrinque cum foliis alte connata, foliis fere 3plo 
breviora, quadrata, apice ultra medium in cilia 6-8 (4-8 cell. longa) 
ineequalia, plus minus curvula, fissa, margine supra basin bispinu- 
losa integerrimave media basi radicellas plures elongatas pro- 
ferentia. 
Fl. monoici: Q@ in ramo brevi paucifolio (raro tamen ad bracteas solas 
redacto) terminales, innovatione nulla; bracteze sub 3-jugee conferte 
erectae, intima magnitudine variabiles, foliis longiores brevioresve, 
apice bifidee, segmentis subulatis, utroque margine plus minus 
recurvo spinis longis hamatis armatz ; bracteola brevior, ligulato- 
oblonga, marginibus longispina, apice truncato dentato-4-spina, spinis 
mediis apice 2—3-fidis. 
Perianthia foliis 2}plo longiora, lineari-lanceolata 3-quetra, angulis ala 
latiuscula longispina, infra medium sensim angustata integer- 
rimfque, auctis, ore profunde 3-labiata, labiis apice bifidis dein 
incisis, laciniis omnibus longisubulatis. 
Ramo  collateralis, vel ex eodem ortus, advenit plerumque ramus 
brevis amentis & pinnulatus. Amenta folium paulo excedentia ; 
bractese parvee, sub 12-jugee, opposite connate, apice recurvo bifidee, 
basi antica in lobulum incurvum inflatum dilatatee, postica cum 
bracteola interveniente in sacculum coaliti. 
Distincta species videtur foliis longis, apice recte truncato bicuspidato- 
cornutis, medio margine postico wnicornibus ; foliolis apice plerumque 
8-ciliatis ; bracteis, bracteolis, perianthiique alis crebre longispinis. 
A beautiful plant, almost worthy to be regarded as a distinct species, 
although it cannot be denied that somewhat intermediate forms occur, 
uniting it with typical L. Martiana. The leaves are remarkable for 
having a large spiniform, or horn-like, tooth about the middle of the 
