Paleaceous


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Pa`le`a´ceous


a.1.(Bot.) Chaffy; resembling or consisting of paleæ, or chaff; furnished with chaff; as, a paleaceous receptacle.
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2 mm wide, strongly imbricate, spreading laterally, with erosedentate margins, not ciliate, brown proximally, paleaceous distally, attenuate to hair-like apices; ultimate segments round to elliptical, the largest 1-2 mm wide, with coarse, contorted, whitish or translucent hairs adaxially and occasional hairs and narrow scales abaxially; leaf margins recurved, forming a weakly differentiated marginal false indusium to 0.
5 cm stem solely covered by disintegrated old fragments of the leaf sheaths; Leaves fasciculate, persistent and concentrated in the distal portion of the stem, apparently monomorphic except for the shortly triangular, spinose, paleaceous reduced leaves of the renovation shoots; sheaths narrowly oblong-ovate, ca.
25 cm long), the propagation by short aggregated shoots sparsely distributed along the naked portion of the stem and bearing shortly triangular, spinose, paleaceous reduced leaves, shorter floral bracts (1.
two-armed, flagellate); pappus of one to more series of bristles, equal to unequal in length, scabrid to plumose, capillary to somewhat rigid and paleaceous, reduced to a crown of fringed scales, or absent.
Cypselae oblong to sub-obovate, truncate, attenuate to rostrate at the apex, glabrous to pubescent, sometimes dimorphic with the marginal cypselae conspicuously larger than the central ones; pappus of scabrid to plumose bristles, capillary to narrowly paleaceous, often plumose only at the apex, equal to different in length, less commonly reduced to a crown of fringed scales, or pappus absent.
Cypselae densely villose; pappus of scabrid bristles, half capillary and short and half somewhat paleaceous, clavate at the apex and longer.
Cypselae villose; pappus of scabrid bristles, half capillary and short and half somewhat paleaceous, plumose at the apex and longer.
5 cm, acuminate, ending in a subrigid spine, densely imbricate and completely enfolding the scape, distinctly exceeding the internodes, entire, paleaceous, densely white-lepidote outside, glabrous and wine colored inside.
Cypselae glabrous; pappus of slightly scabrid bristles, half are capillary, half somewhat paleaceous and longer.
5 cm, soon paleaceous and drying anthesis enrolling the margins, thinly coriaceous toward the apex, membranaceous at base, entire, densely and minutely white-lepidote abaxially, glabrous adaxially, distinctly exceeding the internodes, erect to reflexed.
Capitulescences corymbose to paniculate; capitula pedunculate to subsessile, homogamous, discoid or radiate; receptacle paleaceous, paleae thin, scarious, embracing the central florets; involucre one- to two-seriate.
Cypselae villose; pappus of long and short, somewhat paleaceous, scabrid bristles.