In a wetland mosaic, one can imagine that wetlands differ in timing of such blooms, and turtles that are able to capitalize on this spatial and temporal variance will have the best chance at reproduction and surviving aestivation and overwintering.
Tuma (2006) recorded yellow mud turtles moving [less than or equal to] 178 m between aestivation sites during a single season in Illinois, but no interwetland distances or distances from overwintering sites to wetlands were noted.
These squirrels enter aestivation in late summer and remain torpid (hibernate) through autumn and winter (Best 1995).
Aestivation in the Mohave ground squirrel Citellus mohavensis.
Likewise, all kinds of imbricate aestivation (contort, quincuncial, cochlear) of the calyx or corolla of a flower with pentamerous or otherwise odd-merous whorls lead to a kind of floral asymmetry (Reinsch, 1927).
Ironically, contort aestivation is strongly correlated with polysymmetric flowers (Schoute, 1935; Endress, 1994, 1999).
Among the asymmetry forms here considered, contort perianth organ aestivation is the most common in angiosperms (Fig.
Asymmetry appears much less common than monosymmetry, but not if imbricate perianth organ aestivation and floral torsions are also included.
Anthers adnate to style head; corolla-lobe aestivation in bud typically dextrorse (overlapping to the right) or valvate, rarely sinistrorse; fruit dehiscent, almost always apocarpous, a pair of follicles, sometimes reduced to one by abortion or postgenitally fused; seeds small, compressed, almost always with coma (tuft of hairs) at one end 2 1.
Calycine colleters absent; corolla salveriform or somewhat funnelform in Haplophyton; corolla-lobe aestivation either sinistrorse or dextrorse; corona absent; style head with or without a basal collar; ovary apocarpous or rarely syncarpous; disc absent, adnate, or inconspicuous.
For example, a "beardtongue" staminode like the one in Penstemon (Cheloneae, Scrophulariaceae) also occurs in Jacaranda (Bignoniaceae); petal aestivation
, or folding in the buds, shows both ascending and descending patterns within Scrophulariaceae, Lentibulariaceae, and Bignoniaceae, ascending and quincuncial patterns within Acanthaceae, and descending and quincuncial patterns in Orobanchaceae [whereas their presumed closest relatives, Rhinantheae (Scrophulariaceae) have ascending petal folding]; personate corollas similar to those of Antirrhineae (Scrophulariaceae) are exhibited by some Acanthaceae, Gesneriaceae, Bignoniaceae, and Lentibulariaceae; other parallelisms occur in ovary structure, ovule number, sensitive stigma lobes, and postgenital fusion of the anthers (Endress, 1994).
Amongst other characters, its alternate leaves, collateral vascular bundles, valvate aestivation
, embryology, and chemistry make it not only anomalous in the family Gentianaceae but also in the order Gentianales.