bullate


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bullate

[′bə‚lāt]
(biology)
Appearing blistered or puckered, especially of certain leaves.
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References in periodicals archive ?
arborea is deeply bullate, and measurements were conducted both on the crest of a typical bullation and in an adjacent trough downstream.
helichrysoides in the Hoggar Mountains through the greater thickness of the stem trichomes and in the bullate vegetative leaves.
Leaves spirally arranged; petiole (0.5-)1-2 cm long, green, occasionally suffused with purple, densely pubescent; blades proximal and distal of the same shape, the distal slightly smaller, ovate to ovate-elliptic, (7-)8-14(-18) x (4-)5-7(-8) cm, bullate and slightly fleshy, the base slightly asymmetric, cuneate, the apex acute to acuminate, the margins subentire to slightly serrulate, with 20-40 teeth on each side, teeth of two-size classes, each tooth with a distal callosity, the adaxial surface green, sparsely pubescent, the abaxial surface pale green, densely pubescent with dark or hyaline trichomes, the venation semicraspedodromous, with nine to eleven pairs of secondary veins, irregularly spaced, excurrent to mid-vein, higher order veins reticulated, submarginal vein absent.