actinomorphic


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

actinomorphic

[‚ak·tə·nō′mȯr·fik]
(biology)
Descriptive of an organism, organ, or part that is radially symmetrical.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
2), HN had a much higher percentage (21%) of actinomorphic species than other regions (all <10%) ([X.sup.2] = 8.167, P< 0.0001).
But, the small flower size, delicate petals and actinomorphic symmetry are not suitable for foraging visits by Xylocopa bees (Faegri and van der Pijl, 1979).
Inflorescence terminal, erect, simple, peduncle terete, 45-50 cm long, 5-7 mm in diameter, totally covered by the bract sheaths; basal peduncle bracts green to reddish, imbricate, vaginiform, only the basal ones foliaceous; sheaths 3.5-4.5 cm long, blades 1-30 cm long; spike compressed, oblong to lanceolate, 17-30 cm long, 6-7 cm wide; floral bracts dark green, glaucous, widely elliptic, 3.2-4 cm long, 2-2.4 cm wide, imbricate but the rachis visible after anthesis, smooth to nervate, ecarinate, glabrous outside, sparsely brown punctulate-lepidote inside, apex rounded; flowers distichous, ascendent, 13-22 per spike, actinomorphic, corolla helicoiform, subsessile; sepals free, green, oblanceolate, 3-3.4 cm long, ca.
The flowers present white to yellowish-white color, they are small, arranged in large terminal corymbs summits morphologically monoclinic or tetramer pentamerous, and actinomorphic (NUNES et al., 2007).
rosa-sinensis belongs to the family, Malvaceae, the roots are cylindrical, the leaves are simple ovate or 0vatelanceolate, the flowers are pedicillate, actinomorphic, pentamerous and complete.
Flowers are actinomorphic, with a tubular light violet corolla (4.16 [+ or -]0.02 cm long), three free petals and sepals, petals 2.5 [+ or -]0.1 cm longer than sepals, corolla remains straight during anthesis, with exerted sexual organs, six stamens in two series (4.3 [+ or -]0.38 cm the shortest and 4.8 [+ or -]0.2 cm the largest one), concolorous with the petals, a white, conduplicate spiral stigma in an elongated, white style 6.04 [+ or -]0.06 cm long.
The test involves observing characteristic actinomorphic changes in fibroblasts in tissue culture and is extremely sensitive.
brachycaulos Purple, actinomorphic Exerted from corolla tube T.
The flowers appear to fit a generalist insect pollination syndrome as they are small and actinomorphic with white to yellowish or greenish petals, presented in dense clusters of racemose cymes (Fig.
The large (8-12 cm across), showy flowers are actinomorphic, with a bowl-shaped corolla made up of 5-8 pinkish-red petals.