The latter author stated his concept on metamorphosis on the basis of a series of expansion and compression processes of laminar organs (from cotyledons through carpels via eophylls, nomophylls,
hypsophylls or bracts, sepals, petals, and stamens) along the same axis, which is essentially an anticipation of the concept of heterophylly.
WORDS WITH 2 EACH OF 5 DIFFERENT CONSONANTS bbddnnrryy BRYNBRYDDAN (in Wales) cchhmmpprr PHARMACOMORPHIC ccmmnnrrtt INTERCOMMUNICATOR hhllppssyy HYPSOPHYLLS nnpprrsstt ANTIPERSPIRANTS (cham) cchhppssyy PSYCHOPHYSIC ccnnrrsstt RECONSTRUCTIONS hhpprrttyy PARATHYROPATHY (dor)
Note that, if Y is designated a consonant, BRYNBRYDDAN and HYPSOPHYLLS each only have a single vowel.