ANT ACACIAS AND ACACIA ANTS SAFFORD. 



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Fig. 4. — Pods of ant acacias, used as a basis of their classification, a, Acacia cornigera, 

 indehiscent and spine-tipped; d, seeds of the same enveloped in sugary pulp; b, Acacia 

 collinsii, pods dehiscent along 2 sutures; c, Acacia tepicana, simitar pod with 1 suture; 

 d, Acacia cookii, Globuliferae group, with large 2-valved pods. 



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