Grimes, Mimosoid legumes 
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Axillary buds are multiple biserial (Fig. 6c). These buds are produced sequentially over 
many years; commonly one will change into a long-shoot. As in Lysiloma microphyllum 
flowering occurs strictly on short-shoots, which develop sylleptically or proleptically. 
The development of the unit-inflorescences is precocious relative to the subtending leaf 
and is apparently similar to that oi Acacia caven and A. visco, reported by Martinez (1975). 
c d 
Fig. 6. Scanning electron micrographs of several species of Ingeae. a, axillary bud of Lysiloma 
microphyllum with developing unit-inflorescence (x350); b, c, Acacia nilotica. b, apex of stem 
(x 200). Stipules are clearly visible at the third plastochron; c, multiple serial buds (x 50); 
d, Ebcnopsis ebnno, axillary bud (x35). The leaf-primordia form an enlarged buttress (T ) that 
partially covers the meristematic region. 
