A. Flowers 1-3 per inflorescence . . . 2s 
B. Leaves less than 12 cm. long, re ie or 
thickly coriaceous at maturity, green or 
brown. . as ee ce 
C, Corolla Cihe 7 3-2.5 em. long; cap- 
sule thin-walled, not grooved, 0.7-1.8 
. long: Bolivia, eastern Brazil and 
Sn a or . . . . . B. uniflora 
CC. Corolla tube 3-4 em. iene capsule 
thick-walled, leathery, four-grooved, 
1.5-2.5 em. long; Panama . . . B. Dwyeri 
BB. Leaves usually more than 14cm. long, capsule 
fleshy at maturity, yellow ......D. 
D. Corolla tube 2.2-2.7 cm. long; capsule 2-3 
em. long; calyx not accrescent in fruit; Co- 
lombia, Panama . . . . . . . . . B. chocoensis 
DD. Corolla tube 4-4.5 em. long; capsule 4-5 
em. long; calyx strongly accrescent in fruit; 
Ecuador, Colombia e 
AA. Flowers 5- to many per inflorescence. . .. . FE. 
E. Leaves usually oblanceolate, subverti- 
cellate; inflorescence many-flowered, 
dense, capituliform; Bolivia, Peru, 
BRAM 6° « G- «. & .. « . . B. mtre 
EE. Leaves oblong- lanwedtate: usually 
seattered; inflorescence mostly few- 
flowered, lax or corymbiform . . F. 
F, Leaves usually more than 20 em. 
long; pedicels 6-13 mm. long; 
corolla lobes deflexed at anthe- 
sis; Colombia ... . . B. Chiricaspi 
FF, Leaves usually less than 20 cm. 
long; pedicels 2-6 mm. long: 
corolla lobes spreading . . B. grandiflora 
1. Corolla tube 3-4.5 em. long: 
capsule 1,.7-2.2 em. long; 
Peru, Ecuador, Brazil . subsp. grandiflora 
2, Corolla tube 1.8-3 cm. long; 
capsule 1.1-1.6 em. long; 
Venezuela to Bolivia, Brazil 
subsp. Schultesit 
— 
3, macrocarpa 
