There were 2 illustrations found for E. de Jürgenson
 
2924812 268944 Conocarpus erectus L. E.L. Little,, F.H. Wadsworth, Common Trees Puerto Rico & Virgin Isl.: t. 182 (1964) [E. de Jürgenson]
 
2925245 121198 Avicennia germinans (L.) L. [116 150505 Bontia germinans L.] E.L. Little,, F.H. Wadsworth, Common Trees Puerto Rico & Virgin Isl.: t. 225 (1964) [E. de Jürgenson]