ovatae, pubescentes, plusminusve 0.8 mm. longae. Calyx 
4.5 mm. longus, parte mediana constrictus, fauce dila- 
tatus, cum calcare conspicuo, oblique incurvato, obtuso; 
lobulis latis, acuminatis; appendicibus quam lobulis mi- 
noribus, incrassatis ; pilis malpighiaceis, uniformibus, bre- 
vibus; intus in nervis dense pubescens, sub staminibus 
lanosus. Petala sex, violacea, elliptica vel oblonga, 2—-2.5 
<0.25-1 mm., obtusa. Stamina 11, inclusa, duo dorsalia 
brevissima, alia paulo majora, maturitate vulgo calycis 
marginem attingentia, horum tria ventralia glabra cetera 
lanosa. Ovarium asymmetrico-semiovoideum, dense pu- 
bescens, in stylum tenuem, inclusum, pubescentem at- 
tenuatum. Stigma capitatum. Discus crassus, deflexus, 
latus, obtusus. Ovula 2-4. Semina vulgo tria (non ma- 
tura), suborbicularia, complanata, plusminusve 1.5 mm., 
leviter marginata, minute foveolata. 
The specific epithet has reference to the Kubeo Indians 
who inhabit the general area where Cuphea kubeorum is 
known to grow. 
Cotomspia: Comisaria del Vaupés, Rio Kubiyt (tributary of Rio 
Vaupés), Cerro Kafiendd, savannahs about 15 miles upstream from 
mouth. Quartzite base. Alt. about 800-900 feet. November 10, 1952, 
Richard Evans Schultes & Isidoro Cabrera 18306 (Tyrer in Herb. Gray). 
—Comisaria del Vaupés, Rio Parana Pichuna (tributary of Rio Vaupés). 
Alt. about 700 feet. General location: Lat. 1°10’ N, Long. 70°30! 
W. June 1953, Richard Evans Schultes & Isidoro Cabrera 19913. 
Cuphea stygialis Lourteig sp. nov. 
Suffrutex usque ad pedem altus. Planta omnino ae- 
qualiter adpresso-malpighiaceo-pubescens, pilis crassis, 
albocerosis cum fundamento brevi et ramis inaequalibus 
rigidis. Rhizoma tortuosum, cylindricum, usque ad plus- 
minusve 20 cm. longum, 8 mm. in diametro, cum ramis 
longis fibrosisque. Caules e basi in ramos divisi, recti vel 
aliquid decumbentes, basi usque ad 4 mm. Internodia 
quam folia minora, 4-8 mm. Folia decussata, rarenter 
verticillata (3 in verticillo), discoloria, lanceolata vel line- 
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