All cacti are succulents, yet are defined by the presence of
areoles (specialised sites where spines form) where succulents have none.
These species all share, besides the laminar division, open primary
areoles, with noncostal
areoles including two or more excurrent veinlets, and sori in a terminal position on the veinlets.
As for that desert within a desert when the valley cactus raises her dry arms, at the axils where
areoles protrude their wooly chins, their bristled spines, I give you succulent magenta from the floral tube.
Color (in ethanol): Dorsal scutum and legs I-III (except Tr) background Grayish Olive (110), with grooves,
areoles and reticulation Grayish Yellow (90).
Pebbled pixie-cup (Cladonia pyxidata) has cups with noticeable saucer or pebble-shaped
areoles (segments) in the cup and often up the stalk.
One characteristic of the Oligocene intrusive bodies is the creation of alteration
areoles in Eocene volcaniclastics, and their hydrothermal phases have been generally accompanied by the formation of elements such as epithermal gold, copper, lead, zinc and kaolin.
Chromosome doubling was achieved by several means; by applying colchicine and/or oryzalin, both to germinating seeds and to
areoles (Te-Zur et al 2011b), by crossing between genotypes of various ploidy where some offspring were found to be of different ploidy than the parents (Tel-Zur et al 2004), or alternatively--by gynogenesis (Benega-Garcia et al 2009b).
Forewing with Sc+R forked in basal third of forewing, [Cu.sub.1] forked level with union of claval veins, M forked level with node, [Cu.sub.1] deeply convex distad of claval apex, almost reaching M, hence slightly detached; with a callus in costal cell, 6 apical
areoles distad of stigma, apical part behind apex of clavus folding down and covering apex of abdomen.
However, Bowers (1996) suggests that the cladodes produced during the previous year leads to a higher number of unused
areoles that translated into a higher number of new cladodes and flowers that was not necessarily coupled with rainfall.
speciosa (L.) Pers., having distinctive more or less quadrangular
areoles filled with branching veinlets present between the secondary veins.
Its attractive appearance is additionally enhanced by white wool-like
areoles. To prove an effective protection to the natural habitats of this cactus, it is necessary to develop effective propagation methods under artificial conditions.