Fig. 1
From: Iridescence and hydrophobicity have no clear delineation that explains flower petal micro-surface

SEM micrographs of petal epidermal micro-surfaces. Colour bar indicates contact angle magnitude sorted in ascending order from the top. Blue colour corresponds to the smallest contact angle whilst red represent the largest value. Left column shows SEM images at low magnification whilst the right column depicts details of cellular features. Magnification settings for each image are presented in Table 1 along with flower sizes. Species are indicated by letters: (a) A. huegelii, (b) H. heterophyllus, (c) L. rantonnetii, (d) P. rodneyanum, (e) S. laciniatum and (f) T. majus. Note how species such as A. huegelii (a) and H. heterophyllus (b), although presenting similar contact angles, differ in cell micro-surface. Refer to Table 2 for further details.