APOCYNACEAE 
Ambelania Lopezii Woodson sp. nov. 
Frutex: ramulis teretibus, gracilibus, glabris. Folia 
opposita, elliptica vel obovato-oblonga, anguste acumi- 
nata, basi rotundata, 10-15 ecm. longa, 38-5 cm. lata, 
coriacea, glabra, supra dense et elevate venosa, subtus 
pallidiora ibique venis immersis nervo medio elevato ex- 
cepto; petiolis ca. 5 mm. longis. Inflorescentiae termi- 
nales, pluriflorae; pedunculo ca. 1 cm. longo; bracteis 
scariosis, minimis; pedicellis ca. 5 mm. longis, glabris. 
Calycis laciniae ovato-subreniformes, rotundatae, ca. 
2.5-3 mm. longae. Corolla speciosa, alba ut dicitur, 
suaveolens, hypocrateriformis; tubo ca. 2.5 em. longo, 
in medio per longitudinem ca. 1 mm. lato, extus glabro, 
intus dense piloso; lobis oblique obovato-oblongis, ro- 
tundatis, ca. 8 cm. longis, patulis. Antherae ca. 7 mm. 
longae, supra tubi basim insertae, sessiles. Pistillum cum 
ovario ca. 1 mm. longo et stigmate 1.5 mm. longo. 
In connection with his description of Ambelania Lo- 
pez, named in memory of the late Francisco L6épez, co- 
collector of this new species and a native of La Pedrera, 
not far from the type locality, Dr. Woodson writes: 
‘It is near A mbelania grandiflora, but the flowers of A. 
Lopezti are conspicuously more slender, with the calyx 
about half the size of those of the former species, and the 
pedicels are much shorter. The leaves of Ambelania 
Lopezii, also, are somewhat smaller than those of 4. 
grandiflora, broader at the base, more narrowly acumi- 
nate, and more densely veined. ”’ 
Cotompia: Comisaria del Caqueta, Rio Taraira, at second rapids 
upstream. July 8-11, 1948, Richard Evans Schultes & Francisco Lopez 
10204 (Tyrer in Herb. Missouri Bot. Gard.). 
RUBIACEAE 
Duroia hirsuta (Poepp. & Endl.) K. Schumann in 
Pringsh. Jahrb. Wiss. Bot. 19 (1888) 361. 
[ 76 ] 
