COLLECTED BY MR. SPRUCE. 15 
licaris, albescens. Sguame circa 2 lin. longe, concave, latitudine 
variabiles. Cyma primum globoso-capitata, demum lateraliter ex- 
crescens, pollicem lata. Bractee ample, perianthii tubum equantes, 
cum floribus arcte imbricatz. Perianthium circa 4 lin. longum, post 
limbum delapsum 2 lin., basi leviter 3-costatum ; laciniarum exterio- 
rum lobus medius latus, apice incrassatus et dorso appendiculis linea- 
ribus fimbriatus, laterales membranacei ; lacini: interiores in sinubus 
parvee, late, crassiuscule. Antherarum loculi discreti obovoidei. Styli 
lobi dilatati, inappendiculati. Placente 3, ovulis numerosissimis. 
Semina tamen pauca (seepius duo tantum versus apicem cujusve pla- 
centz) maturescunt. 
In the caatingas along the Uaupés, near Panuré, and a single speci- 
men near San Gabriel. 
2. P. capitata; humilis, rigidula, squamis angustis, cyma globoso-capi- 
tata, floribus sessilibus bracteisque lato-ovatis aeutis imbricatis, peri- 
anthii laciniarum exteriorum lobo medio nudo.—AHeréa albescens, 
habitu P. fimbriate affinis, sed paullo altior et tenerior, squamis an- 
gustioribus. Florum capitulum non dilatatum. — Bractez ovato-lan- 
ceolatæ v. fere orbieulatz, apice acutate, perianthio fere æquales; 
hujus laciniarum exteriorum lobus medius crassiusculus est sed non 
appendiculatus ; laciniæ interiores parvze, ovate. 
Amongst dead leaves in woods on the Uaupés, near Panuré. 
3. P. cymosa; rigidula, squamis ovatis, cyma divaricata, bracteis ovatis 
 oblongisve pedicello brevioribus, perianthii imberbis laciniis intimis- 
minutis, styli lobis longe et tenuissime biaristatis.— Herba semipeda- 
lis v. paullo altior, in vivo tota violacea, siccitate flavicans, simplex v. 
subramosa. Sguame concave, 1-1} lin. longe. Cyma terminalis, 
primum subcapitata, ramis demum divaricatis usque ad 1-1} poll. — 
excrescentibus ; adsunt etiam sæpe cymæ minores ad apices ramulo- __ 
rum ad axillas squamarum caulis nascentium. Bractee lato-ovate, | 
l-1ilin.longs, hyaline. Pedicelli erecti, 2 lin. longi. Flores aperti | 
5 lin. longi, post limbum delapsum vix ultra 2 lin. Perianthium ex- 
tus violaceum, intus album ; laciniz exteriores late, lobo medio inte- 
gro lateralibus vix angustioribus aleeformibus tenuibus obliquis den- - 
ticulatis; interiores minime, dentiformes, vix conspieuz. Styli lobi - 
incrassato-dilatati, supra aristis 2 setzformibus ultra lineam longis 
appendiculati. Capsula subglobosa, 1} lin. diametro, leviter 3-cos- 
tata. Semina subglobosa. oo 
