muricatus, densissime pilis crassis stellatis tectus; intus 
adpresse sericeus. Petala 5, libera, albida, obovato-oblon- 
ga, apice rotundata, basim versus in unguem glabrum an- 
gustata, 28 mm. longa, 8 mm. lata, extus velutina, pilis 
stellatis dense obtecta; intus puberula. Staminorum 
columna crassiuscula, tomentosa, sed basim versus pube- 
rula, quam calyx plus duplo longior, 40 mm. longa, extre- 
mo in lacinias quinque antheriferas lineares crassiusculas 
6-8 mm. longas producta; laciniis sex antherarum loculis 
ellipticis, 2.5-4 mm. longis, contiguis munitis, sed loculo 
inferiore (vel duo) parte superiore tubo concrescenti. Sty- 
lus erectus, valde exsertus, tomentosus. Stigma papillose 
capitatum, minute 5-lobatum, paulo incrassatum. Fruc- 
tus maxime quercui prospectu simillimus. Cupula caly- 
cina coriacea, tuberculato-muricata, densissime tomen- 
tosa, 2.5 em. diam., circa 15 mm. alta. Fructus siccitate 
coriaceo-induratus, minutissime adpresseque tomentosus, 
ovato-ellipticus, 32 mm. longus, 22 mm. latus, apice mi- 
nute obtuseque 5-lobatus; pyrenis 5 sublignosis, circa 20 
mm. longis, monospermis. Semina oblonga, fusca, circa 
18 mm. longa, 5 mm. crassa. 
Dr. Cuatrecasas states of this new species: ‘‘Quara- 
ribea muricata is related to Q. putumayensis Cuatr., but 
it is very different from all species in the genus because 
of its striking calyx, the surface of which is densely cov- 
ered with strong rugosities and acute tubercles. ”’ 
Brazit: Estado do Amazonas, Rio Uaupés, between Ipanoré and 
confluence with the Rio Negro: Tamaquaré, above Bela Vista. ‘“Small 
tree. Flowers: petals cream, calyx green.’’ November 8, 1947, Rich- 
ard Evans Schultes & Joao Murca Pires 9010 (Tyrer in Herb. Chicago 
Nat. Hist. Mus.). 
OcHNACEAE 
Elvasia quinquelobata Spruce ex Engler in Mar- 
tius Fl. Bras. 12, pt. 2 (1876) 353. 
The type of this curious species was collected by 
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