In the female from Himmiste and the female from Keskvere, polygonal areoles
are clearly isolated from each other (Fig.
KEY TO THE NORTH AMERICAN HAIRWORM SPECIES A Cuticle smooth, lacking areoles
or B with flat, smooth areoles
; male tail bilobed (as in Figs.
The young areoles
near the top of the plant bear cottony, wool tufts.
Nebraska records are near the northern edge of the range for this southern species that consists of closely aggregated, squamulose to lobate areoles
Cacti, by the way, are distinguished from other succulents by having areoles
Cactuses - which have spines or thorns growing out of regularly spaced areoles
- can be barrel-shaped, tall and branching, or irregularly shaped and close to the ground.
Serpocaulon is defined as having commonly anastomosing veins, chevron-shaped areoles
, 1-10 series of areoles
between the costa and pinnae margin, excurrent veinlets in the areoles
, as well as a generally long-creeping, branched rhizome, with peltate, clathrate rhizome scales (at least in the central or basal portion).
Pronotum with large, distinct, bulbous hood, cleft posteriorly to receive anterior portion of a compressed elevation formed by two greatly enlarged hemispherical lateral carinae; areoles
of hemelytra very large, rectangular, and vitreous Galeatus Curtis
The smallest areas outlined by veins, referred to as areoles
, may be described in terms of shape, size, orientation and presence or absence of freely ending veinlets.
Thallus sorediate, consisting of rounded areoles
which break down into a leprose crust Candelariella reflexa 1.
Apex of sterile leaf blades ending abruptly in a small slender point; veins of sterile leaf blades forming smaller secondary areoles
("circles") within larger primary areoles
; fresh plants malodorous; plants of limestone outcroppings.
Veins raised abaxially, immersed adaxially, main lateral veins 4-6 mm apart, with two or three rows of areoles
between two adjacent lateral veins, with one or two included veinlets in each areole
stricta is concentrated near the areoles
of developing cladodes and flower buds.
well-developed, oriented, polygonal areoles
Diplaziopsis and Homalosorus differ from Diplazium by lamina simple to once-pinnate, veins anastomosing with numerous areoles
(but not goniopteroid), rachis groove V-shaped, rhizome and roots not black and sclerified (Price, 1990).