Fig. 3
From: Growth phenology in Pinus halepensis Mill.: apical shoot bud content and shoot elongation
Photomicrographs of a winter bud without cataphyll in a young tree. a to the left Shoot apex meristem (SAM) surrounded by cataphyll primordia (CP) in December, axillary meristem (AM), embryonic brachyblast (EB) and embryonic auxyblast (EA). b to the right and below details of SAM: primordium (P), AM and pith parenchyma (PP); c to the right and above Morphometry of SAM, maximum length (L1), maximum width (W1), minimum length (L2) and minimum width (W2)