Smithsonian Report, 1921. — Safford. 



Plate 1 1 



Acacia nelsonii, a Species with Crescent-Shaped Spines, Long-Stemmed 

 Flower Spikes and Florets Borne on a Very Slender Receptacle. Photo- 

 graph of Type Specimen, from Acapulco, Mexico. Natural Size. Original. 



394—11 



