oblong-elliptic), calyx persistent or caducous, the base 
rounded to acute (rarely acuminate) and mucronate, in 
cross-section usually bilaterally flattened, or 4—5-sided to 
nearly round with 2 or 4 longitudinal sulci; seeds verru- 
culose and lacking a greatly thickened testa. n=12 
(Bristol 1114; GH). 
These are acommon sight about towns and habitations 
in many areas of highland Colombia and Ecuador, but 
they are not seen at middle and lower elevations. 
SPECIMENS EXAMINED: 
Unitep Srares: Walther 542. Cotrompia: Bristol 419, 653, 710, 
1114, 1345, 1354, 1419, 1420, 1446; Chindoy 198; Cuatrecasas 13644; 
Fosberg 20562; Foster & Foster 1945; Garcia-B. 7847; Holton 548; 
Idrobo 2223, 2289; Overton O-56-106; Schultes 6591A, TO78, 7108; 
Schultes § Villarreal 7522g, 7588, 7556, T7689, 7T893A, 8031, 8040, 
S041; Soejarto 204. Ecuavor: Bristol 1874, 1375, 1877, 1878, 1379, 
1380, 1383; Hitchcock 20939; Rimbach 1,7, 63; Rose § Rose 22344. 
Peru: Hartweg 815; Kanehira 224; Metcalf 30493; West 38692. Bo- 
Livia: Bang 1942; Brooke 6177. 
There are several color-forms (9), of which one has 
already received formal recognition. 
A. Exposed part of corolla entirely yellow... . . . . ‘Flava’ 
AA. Exposed part of corolla entirely red, or green at the middle and 
red toward the limb . ....... =... ... . ‘Sangre’ 
la. cv. Flava. 
Datura sanguinea 8 flava Dunal in DC. Prod. 13: 
545. 1852. 
D. Rosei Safford Journ. Wash. Acad. Sci. 11: 188. 
1921. 
D. sanguinea ‘Flava’, with brilliant yellow flowers, is 
cultivated in the highlands of central Ecuador and south- 
ern Colombia. Safford’s species differs from D.sanguinea 
only in its angular, densely tomentose upper leaves and 
in its orange or saffron-yellow corolla, the color placing 
