develop roots quickly and abundantly when cuttings are 
taken from the region which has begun to lignify. One 
clone, *Munchira’, is difficult to propagate, since its stems 
are typically undersized, and the few stunted plants in 
existence are only rarely cut back. When this is done, 
however, the expected growth of thick, vigorous shoots 
appears, and cuttings made from these root easily. 
Abundance of Datura cultivars 
In the Valley of Sibundoy, tree Daturas are more con- 
spicuous and more abundant than at many other localities 
in southern Colombia. At least 60 per cent of the trees 
are D. candida *Buyés’, while another 80 per cent are 
D. candida *Dientes’ and *Amaron’. All of the eeonomi- 
‘ally more important cultivars comprise the remaining 
10 per cent. ‘Table V indicates the estimated number of 
individuals of each cultivar in 1968, and emphasizes the 
rarity of many. 
Taste V. Estimated number of individuals of Datura cultivars 
in the Valley of Sibundoy in 1963. 
ca. 1000 *Buyés’ 
ca, 300 *Dientes’ 
ea, 200 *Amaron’ 
‘Culebra’ 
*‘Quinde’ 
less than 40 re ; 
Guamuco’ 
‘ . , . 
Biangan 
‘ e . 
Munchira 
less than 20 ba 
Sangre’ 
‘Andrés’ 
less than 10 ‘Ocre’ 
to , 
Salaman’ 
It is difficult to judge whether the relative scarcity of 
nine of the cultivars reflects their more recent appearance 
in cultivation, or the degree of jealousy with which they 
[ 183 ] 
