FIG. 3 in Bark anatomy of lianescent Bignoniaceae: a generic synopsis

FIG. 3. — Stem cross-sections illustrating the diversity of stem architectures in Bignoniaceae lianas: A, Campsis radicans, transverse section (TS). Phloem wedges absent. Intraxylary secondary phloem and xylem present, note center of the pith totally occupied in the insert, giving a dumbbell shape to the pith; B, Pandorea jasminoides, TS, irregular, wavy cambium, forming irregular shallow arcs; C, Podranea ricasoliana, TS, irregular, wavy cambium. Insert: narrow waves of the cambium; D, Perianthomega vellozoi, TS, Type 1, four wide phloem arcs; E, Tynanthus cognatus, TS, Type 2, four phloem wedges; F, Adenocalymma nodosum, TS, Type 3, four phloem arcs, variant cambium without anticlinal divisions; G, Mansoa onohualcoides, TS, Type 4, multiple of four phloem wedges; H, Dolichandra unguis­cati, TS, Type 5, multiple dissected phloem wedges; I, Amphilophium crucigerum, TS, Type 6, included phloem wedges. Scale bars: 0.5 cm. Scale bars in inserts: 2 mm.