areolar groove

Listing 1 - 4 from 4 for areolar groove

Ariocarpus fissuratus
... long than wide, closely packed and divergent, sharply angled apically; Areoles forms a central longitudinal areolar groove extending to the tips on the adaxial surfaces of the tubercles, woolly, 1-3 mm ...
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Ariocarpus fissuratus
... form a coarse mosaic, exposed faces of tubercles, deeply fissured on either side of central areolar groove, coarsely rugose, often sharply angled apically; and whit a lateral longitudinal furrow on each side ...
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Ariocarpus fissuratus, A variable species
... the papillae tending to be arranged in transverse lines, which are interrupted by the areolar groove and the lateral furrows. Hence, there are two longitudinal papillated fields on each side ... tubercle surface. The areolar groove in ssp. fissuratus and ssp. hintonii is formed by the prominent inner papillate fields, which are almost lacking in ssp. bravoanus. The areolar groove in ssp. bravoanus ...
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Ariocarpus hintonii
... , verrucose part of adaxial surface 8-11mm long, 11-15mm wide, with a central, woolly areolar groove and two very distinct, perfectly straight, glabrous lateral grooves 0.5-1.0mm wide, remainder ...
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