Figure 3.

Scanning electron micrograph (100×) of a C. fasciculata shoot tip. The I1 is the first-order meristem that has initiated the eight-leaf primordia (P4 and P6 were removed for visual clarity). Each leaf primordium is at a node containing, in this case, an I2 inflorescence meristem, but only the older nodes have substantial organ development visible. Note that none of the leaf primordia have matured to the point where leaflets are developing. In this one shoot tip, eight different stages of leaflet and I2 meristem/I2 axillary development are represented.