Puinave =koo-an.’’ September 3, 1952, Richard Evans Schultes & Isi- 
doro Cabrera 17147 (Tyrr in Herb. Gray). 
Moronobea rupicola R. LE. Schultes sp. nov. 
Arbor mediocris, usque ad duodecim pedes alta. Trun- 
cus aliquid contortus, 8 poll. in diametro, cortice molli, 
fusco rimosoque, latice copioso, flavo. Ramuli cortice 
rufo-fusco densissime foliosi, internodiis plusminusve 8 
cm. longis. Folia firme subcoriacea, supra nitida atro- 
viridiaque, infra pallidiora, breviter petiolata (petiolis 6— 
10 mm. longis, aliquid complanatis), obovata, apice bre- 
vissime et abrupte acuminata, basi cuneata, margine levi- 
ter marginata, usque ad 8-8.5 cm. longa, 4 cm. lata, 
nervis lateralibus 0.7—1 mm. inter se distantibus. Flores 
terminales, citrini sed petala basim versus pallide rosea. 
Pedicelli brevissimi 4-6 mm. longi, crassi, rosei. Sepala 
valde inaequalia, crasse chartacea; duo exteriora orbicu- 
lata, margine integra, conspicue rugulosa, plusminusve 
5 mm. longa, 7 mm. lata; interiora similia sed majora, 
8 mm. longa, 10-12 mm. lata. Petala cucullata, extus 
subvelutina, obliquuo-ovata, apice rotundata vel saepe 
subacuta, margine integra, 3.5-4 cm. longa, 3.5 cm. lata. 
Discus infrastamineus annularis, inter staminum adelph- 
las in lobulos sanguineos carnosulos tumens. Synandrium 
plusminusve 2.5 cm. longum, contortum, phalangibus 
plerumque 38-andris. Ovarium glabrum, obscure sculp- 
tum, oblongo-ovoideum, 1.5 cm. longum. Stylus 1.5 
em. longus, in brachia 1-1.5 mm. longa exiens, ultra 
petala non exsertus. Fructus adhue ignotus. 
Moronobea rupicola appears to be most closely allied 
to M. ptaritepuiana Steyerm., native to Cerro Ptari- 
tepui in Venezuela, the flora of which has many elements 
in common with that of Cerro Isibukuri. The former 
species can be distinguished from the latter at once by 
its abruptly acuminate (instead of apically rounded) 
[ 17 ] 
