FIG. 2 in Bark anatomy of lianescent Bignoniaceae: a generic synopsis

FIG. 2. — Transverse sections: A, cortical periderm origin, Anemopaegma chamberlaynii; B, single periderm, with a very thick phellem, Adenocalymma alboaurantiacum; C, rhytidomes (sequent periderms) in Fridericia chica; D, rhytidome with reticulate periderms conspicuous, Podranea ricasoliana; E, phellem with evenly thick-walled, lignified cells, and phelloderm thin, Pachyptera aromatica; F, phellem with evenly thin-walled cells, phelloderm thin, Perianthomega vellozoi; G, stratified phellem, with alternating thick walled, lignified cells, and thin walled, unlignified cells, phelloderm with dark contents, Mansoa onohualcoides; H, stratified phellem, with many layers of thin-walled cells alternating with thick walled, lignified cells, phelloderm thick, Lundia longa; I, stratified phellem, with alternating layers of thin walled and thick walled, lignified cells, phelloderm thick, Fridericia nigrescens; J, stratified phellem, with some layers of thin-walled cells alternating with thin walled, lignified cells, phelloderm thick, Pleonotoma tetraquetra; K, lenticel non-stratified, with filling tissue homogeneous, non-lignified, Lundia corymbifera; L, lenticel non-stratified, with filling tissue homogeneous, lignified, Mansoa difficilis; M, lenticel stratified, with most of the filling tissue non-lignified, except for the closing layer (arrowhead, Adenocalymma comosum). Abbreviations: co, cortex; e, epidermis; pd, phelloderm; pe, periderm; pg, phellogen; pl, phellem; sp, secondary phloem. Scale bars: A, 50 μm; B, 8 mm; C, H-L, 200 μm; D, 500 μm; E-G, M, 100 μm.