ticultural attraction, since the species has never been found in 
the area between Puracé and the region of La Cocha, and the 
occurrence of the plants near La Cocha Is sporadic and along 
roadsides, where it appears to have been planted. 
There have been several different botanical interpretations 
of the concept which we here call Brugmansia vulcanicola. 
Lockwood, in his revision of Brugmansia (Lockwood, 1973) 
considered the concept described as Datura vulcanicola to 
represent a subspecies of Brugmansia sanguinea, but he did 
not have an opportunity to make the indicated nomenclatural 
change before his untimely death. It can be differentiated from 
Brugmansia sanguinea, with which it is obviously allied, on 
the basis of corolla colour and shape; the pericarp which is 
woody and externally provided with a warty, corky reticulum; 
an extremely stout, woody peduncle; very hard wood; the 
calyx which is conspicuously not persistent on the fruit; the 
usually smooth surface of the seed; and leaf shape and size. 
Although Lockwood argued that ‘‘... the hard wood, the 
thick, woody peduncle; and hard, woody pericarp of the fruit 
may all represent the pleitropic effects of one mutant gene that 
controls lignification’’, it seems that there are sufficient 
characters on which to accept specific status. 
Bristol (Bristol, 1966) studied a number of species of Brug- 
mansia employed for hallucinogenic purposes by medicine- 
men in the Valle de Sibundoy in the southern Colombian Andes 
and recognized it as a distinct species. He (Bristol, 1969) 
suggested that this concept might represent an incipient 
species, especially in view of its limited range in the Andean 
highlands of southern Colombia between about 9,000 and 
11,000 feet. Consideration of its very marked differences from 
its nearest ally, Brugmansia sanguinea, however, would tend 
to indicate that it is far from incipient and that it is already a well 
established species. 
It would seem advisable, in view of the numerous and stable 
characters, to continue recognizing it as a distinct species. 
Consequently, the necessary nomenclatural transfer to Brug- 
mansia is here made. 
ee 
