EXPLANATION OF THE ILLUSTRATIONS 
Prare XXIX,. (Upper figure), Basal portion of the 
trunk of Septotheca Tessmannii, the individual from 
which the collection Schultes & Black 8612 was 
made, 
(Lower figure). View in a caatinga forest on the Rio 
Naquieni, Comisaria del Vaupés, Colombia. The 
trees with stilt roots are Cunuria crassipes; the slen- 
der, columnar trunks represent Hevea rigidjfolia. 
