200 MR. SPRUCE ON FIVE NEW PLANTS FROM EASTERN PERU. 
It should be mentioned that the name * Yangua" is given also 
to two species of Indigofera, cultivated sparingly at Tarapoto: 
they are sometimes called “ Tacsha-yangua” (or “ small Yangua”’), 
to distinguish them from Yangua tinctoria, which is the * Atun- 
(or great) yangua." 
IV. Caprrona, a new genus of Rusiacnz. Tribe, CINCHONEX. 
Char. Gen.— Саух obparabolicus, compressulus, inferne cum ovario 
connatus, dimidio superiore liber, ore obtuse 5-6-dentato; florum 
axillarium dente externo plerumque in laminam phylloideam producto. 
Corolla e basi angustá tubulosá, campanulata, subgibba, 15—18-sulcata, 
5-6-lobata; lobis cordato-ovatis imbricatis, З (vel omnibus) demum 
reflexis, quasi bilabiata. Stamina 5 (raro 6) corolla duplo breviora; 
filamenta basi in tubulum corolle tubo adnatum coalita, dein libera 
anthere lineares, connectivo adnatz, 2-loculares, longitudinaliter de- 
hiscentes. Ovarium inferum, biloculare. Ovula 00 in placentis elon- 
gatis, sectione reniformibus, dissepimento utrinque insertis, sessilia, 
anatropa. Stylus brevis cum stigmate lineari bilamellato tubum 
stamineum paullo superans. Capsula anguste obovata, calycis limbo 
coronata, ab apice ad basin septicido-bivalvis. Semina 00, parva, tenuia, 
ala trapeziformi vel triangulari basi sepius biloba cincta. Eméryo in 
axi albuminis carnosi orthotropus; cotyledonibus parvis ovalibus sub- 
planis; radiculá tereti hilo proxima.—Arbor Peruviana cortice casta- 
neo deciduo, stipulis intrapetiolaribus, floribus magnis Bignonioideis, 
Calycophyllo proxima; huic tamen sunt flores multo minores, corolla 
brevi-campanulata symmetrica omnino esulcata, lobis concavis fere 
fornicatis nunquam reflexis, et filamenta corolle equilonga cum eddem 
ad loborum basin usque concreta, haud in tubulum coalita. 
CAPIRONA DECORTICANS, Spruce. 
Hab. Tarapoto et aliis locis secus fl. Huallaga, in sylvis primevis recenti- | 
oribusque, solo arenoso. Capirona Peruvianorum dicta est. | 
Arbor pulchra 30—40-pedalis, apice parce patule ramosa; ramulis sub- | 
teretibus; cortice castaneo, levissimo, nitente, lamellis tenuissimis 
secedente. Folia opposita, in petiolo perbrevi 5-lineari, maxima 
20 x 10 unc., oblongo-ovalia, apice rotundata vel apiculo brevissimo 
obtusato terminata, subcoriacea, glaberrima vel in stirpe juniore ad 
venas et in facie inferiore plus minus pubescentia; venis validis pa- 
rallelis, angulum 70° cum costa efformantibus, secus marginem cur- 
vatis et anastomosantibus. Stipule intrapetiolares, 36 lin. longe, 13 
lin. late, elongato-triangulari-lingulatze, acutz, 2-costate, venulose, : 
albide, submembranacez, basi subcordatá sese imbricantes. Сут j 
ex stipularum superiorum plerumque aphyllarum axillis, subinde | 
paniculam magnam terminalem efformantes; pedunculo 9-unciali v. D 
breviori, apice 3-fido; ramis bis terve bifidis, bracteolà stipulari ad 
cujusque rami basin. Flores ad ramorum apices axillasque solitarii, 
e 
aif ofi i La Cota MB i d 
