Pileus 67-81 mm diam., at first plane to slightly umbonated at the disc, infundibuliform in mature specimens, then slightly depressed at disc, surface smooth to slightly pruinose, margin involute, nonstriate, rimose, yellowish brown (5D5) to greyish brown (6F3) at the center, dark brown (6F5) toward the margin.
Diagnosis: Basidiomata clitocyboid, pileus 13-30 mm diam., infundibuliform to plano-convex, white to pastel grey, lamellae decurrent, stipe cylindrical, with mycelial pad and rhizomorphs, basidiospores 4-5 x 3-4.3 [mu]m, globose to subglobose, smooth to slightly angled in polar view, cystidia absent, pileipellis a transition between trichocutis and a trichoderm, clamp connection absent.
Corolla gamopetalous, tubular-campanulate, infundibuliform
, campanulate or hypocrateriform, sometimes with bilabiate apex, aestivation imbricate, zygomorphic; stamens included or exserted, 4, rarely reduced to 2, didynamous, staminode reduced, glabro, rarely elongate and pilose; filaments adnate to the corolla at the base; anthers commonly divergent, generally glabrous, rarely pilose; pollen grains many, in monads, rarely in tetrads or polyads; nectariferous disk generally present; gynoecium bicarpellate, bilocular; ovary superior, multiovulate, placentation axial, stigma bilamelate, lobes sensitive (closing after contact with pollinator).
Corolla zygomorphic, 4.5-5 cm long, oblique relative to calyx, protandrous, infundibuliform
; base gibbous, 6-7 mm in diameter, gibbosity 4-5.5 mm long; tube 3.5-4 cm long, 0.8-1.6 cm wide, outer surface white, sometimes pink ventrally, villous to lanate, inner surface white to yellow, glabrate; throat 9.5-16 mm in diameter, inner surface with dark red or purple spots, glandular trichomes dorsally; corolla lobes 5, subequal, spreading, white, apex rounded, ventral lobe 16-17 x 12-14 mm, oblong, margin slightly erose, glabrous, lateral lobes 8-13 x 9-10 mm, ovate to oblong, margin slightly erose, lanate abaxially, glabrous adaxially, dorsal lobes 8-10 x 8-11 mm, ovate, margin entire.
PILEUS 6-7 cm wide depressed to infundibuliform
to irregularly shaped at maturity surface dry rough tomentose patches present on pileus surface dull red to brownish red margins uplifted to slightly recurved of same color as pileus not entire but cracked.
The tabulae are variable in shape (curved, horizontal or infundibuliform
Plant forming rosettes of about 13-17 leaves, rosettes in groups of up to ten individuals, slenderly infundibuliform
. Leaves medium green, shining, appearing glabrous but very minutely and laxly lepidote abaxially, abaxially distinctly nerved when dry; leaf-sheaths ovate, pale green, minutely lepidote with brownish trichomes, 6,57 x 3-3,5 cm, distincly nerved when dry; leaf-blades linear, acuminate, 17-26 x 1,5-1,8 cm.
morphology) throughout the upper Chouteau group of late Kinderhookian.
Corolla salveriform, infundibuliform
, tubular, or rotate.
1E); coenanthia are infundibuliform
, being supported by a long peduncle (Carauta & Valente, 1983; Fig.
heterophylla have infundibuliform
and slightly zygomorphic white corollas with included stamens, while the flowers of T.
Character Hechtia argentea (a) Hechtia lepidophylla (#) Rosette shape spherical infundibuliform
Foliar apex revolute straight Foliar blade straight curved Foliar spine ca.