Gen. Trithrinax Mart. 
1. TRITHRINAX BIFLABELLATA Barb. Rod. Caudex ere- 
ctus gracilis vaginis in spinas validissimas excurrentibus 
horridus, foliis rigidis biflabellatis longe petiolatis, cristã 
anticé acutã posticé emarginatã, laminã usque prope basin 
profundius incisã laciniis linearibus in acumina duo pun- 
gentia profonde fissis. Spadix gracilis amplus divaricato- 
ramosus, spathis pluribus pedunculum involventibus longe 
reticulato-fimbriato dissolutis et ramos 1. suffulcientibus in- 
tegris cymbiformi-dilatatam acutam, ramis floriferis rigidis 
arcuato-patentibus. 
Tab. 1. 
Caudex 2"-s" SL o”o5-0",07 lg., adolescens usque ad imam 
basin vaginis involutus. Zolia 10-12 contemporanea, rigida, 
vix 1,"20 lg., vaginis 0",20-0",25 lg., exclusis spinis (8) 
crassis pungentibus oram armantibus 0”,o5-0",15 lg., pe- 
tiolus 0,"6-0",8 lg. laminam plrq. acquans, compressus et 
anceps; lamina rotunda, q = cc 220º, foltolis cc 25, extimis 
o0”",20-0",24 X 0,005 lg. mediis 0",45-47 X O”,2 lg., intimis 
o"40-0",42 X 0",004 lg., omnes usque fere ad basin in 
acumina duo pungentia fissis. Spadices o",5s0o-60 lg., 
erecto-patenti, gedunculus O",25-—0"”,30 lg. compressus inter 
spatharum interiorum tubum occultus spathis 6, fere ae- 
quilongis tubulosis dense imbricatis involutos, 1 exterior 
lanceolato ad apicem bipartido utrinque acuto, 5 inte- 
rioribus ad apicem fibroso dissolutis, extimis ochreatis 6 
decrescentibus cymbiformis, acutis, integris; zachis valida, 
ondulata, o”,25 lg.; ramos 6-7 excerentes, ad basin spathis 
ochreatis protectos, inferiores 0”,20-0",28 lg., supremus 
o”,15 lg., recurvos, rigidos. Z/ores petalis o",004 lg., sta- 
minibus excertis, conicis; calix o",002 alt., trifidus, acumi- 
natus; petala late-obovata, o0”,004 alt. filamenta 0”,005 alt., 
lata, plana, antheris emarginatis ad basin sagittatis; ovaria 
oblonga, o",002 lg., styli triplo majore — Baccae ignotae. 
