1.52.5 em. lata firmiter membranacea glabra nervis se- 
condaris arcuatis sat remotis nervo medio supra pauci- 
glanduligero; petiolo 8-5 mim. longo. Inflorescentia lat- 
eralis vel subterminalis pauciflora glabra; pedunculo 1— 
2.5em. longo; pedicellis subnullis; bracteis minutissime 
ovatis. Calycis laciniae ovato-trigonales longe acuminatae 
extus papillatae intus squamella deltoidea minute erosa 
munitae. Corolla infundibuliformis lutea extus omnino 
glabra: tubo proprio 8.5-4 ¢m. longo basi ca. 1.5 mm. 
diam. ; faucibus conicis ca. 2.5 em. diam., ostio ca. 1 em. 
diam. ; lobis late dolabriformibus ca. 2 ¢m. longis patulis. 
Antherae obovato-oblongae basi breviuscule auriculatae 
‘a. 8 mm. longae dorso glabrae. Ovaril carpella ovoidea 
‘a. 1.5 mm. longa, nectariis 5 plusminusve connatis subae- 
quilongis; stigmate pentagono-umbraculiformi obscure 
apiculato ca. 1 mm. longo. 
A member of the Mandevilla scabra alliance, M. cunei- 
folia is distinguished by the obovate or elliptic-obovate 
cuneate leaves and reduced inflorescence. 
Cotompia: Comisaria del Vaupés, Rio Piraparana (tributary of Rio 
Apaporis), Cafiio Teemeefia, Savannah O-koo-me-gwa, September 6, 
1952, Richard Evans Schultes & Isidoro Cabrera 17234 (Tyrr in Mo, 
Bot. Gard. ).—Comisaria del Vaupés, Rio Vaupés, between Mitt and 
Javareté, Yutica, May 14-24, 1953. Schultes & Cabrera 19877. 
Mandevilla stephanotidifolia ]0odson sp. nov. 
Frutex volubilis; ramulis teretibus vel paulo compres- 
sis glabris. Folia decussata petiolata; lamina latiuscule 
oblongo-elliptica in acumine breve abrupte contracta basi 
obtusa vel rotundata 6-12 cm. longa, 4-7 em. lata sub- 
coriacea subglauca glabra nervo medio supra distante 
glanduligero; petiolo ca. 1 em. longo. Inflorescentia aut 
terminalis aut lateralis spicata multiflora: pedunculo ca. 
6-12 em. longo crassiusculo glabro; pedicellis nullis vel 
vix bene manifestis: bracteis speciosis petalaceis (albis 4) 
caducis late oblongo-obovatis carinatis apice valde acu- 
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