Key to Datura (cont. ) 
a. Corolla yellow-orange. . .......... . ev. Ocre 
aa. Corolla white 
b. Corolla very deeply lobed, filaments apically 
contorted, leaves long-linear. . . ev. Culebra 
bb. Corolla slightly lobed, filaments destehe. edee: 
not long-linear 
c. Leaves with regular venation and uniform margins 
d. Leaves dentate .......... .. . ev. Dientes 
dd. Leaves entire 
Pistil exceeding 30 cm., corolla 31-43 em. ev. Andrés 
Pistil less than 25 cm., corolla 20-30 cm, 
Leaves yellowish, pistil 22-24 em. . . . cv. Biangan 
Leaves not yellowish, pistil 14-21 em. . . cv. Buyés 
ec. Leaves with irregular venation and variously 
erose margins (cf. Plate LII) . . . . . . evs. Amarén 
Salamin 
Quinde 
Munchira 
Taxonomy of the genus Datura 
in the Valley of Sibundoy 
1. Datura sanguinea Ruiz & Pavon F). Peruv. 2 
15. 1799. 
Brugmansia bicolor Persoon Syn. Pl. 1: 216. 1805; 
Lindley Bot. Reg. 20: pl. 1789. 1884. 
B. sanguinea 1). Don in Sweet Brit. Fl. Gard. II. 3: 
pl. 272. 1885; Lagerheim Bot. Jahrb. Engl. 20: 662. 
1895. 
Small trees, 2-5 meters in height; leaves soft- 
pubescent, the lower repand to angular, the upper usu- 
ally entire; flowers 17-25 cm. long, the corolla with a 
short-toothed, recurved to strongly reflexed (rarely erect) 
limb, the tube typically green within the calyx, yellow 
at the middle and red or orange-red (rarely yellow- 
orange to bronze) toward the limb, the ribs yellow; an- 
thers 12-18 mm.; stigma obtuse; fruit ovoid (rarely 
oblong-elliptic), the base rounded to acute (rarely 
acuminate) and mucronate, in cross section usually bi- 
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