Table 2 in Taxonomic updates in Amphitecna (Bignoniaceae): A new Mexican species and the re-establishment of the giant-leaved A. megalophylla

Table 2. Comparison of diagnostic morphological features among the giant-leaved species of Amphitecna (Bignoniaceae).
Morphological featuresAmphitecna costataAmphitecna macrophyllaAmphitecna megalophyllaAmphitecna regalisHabitBranched treePachycaul treePachycaul treePachycaul treeLeaf longLess than 60 cmLess than 60 cmup to 100 cmup to 100 cmFlowers per shoot1 or 21-to-several3-to-several1-to-severalPedicel lengthup to 25 mmup to 25 mmup to 60 mmup to 10 mmCalyx lengthup to 15 mmup to 35 mmup to 18 mmup to 28 mmTransverse fold in the throat of corollaPresentAbsentPresentAbsentCorolla lengthup to 40 mmup to 50 mmup to 40 mmup to 60 mmFruit surfaceCostateSmoothCostateNot seen