Ceropegia acicularis Kidyoo

Herbs, erect, with clear latex in all parts. Leaves opposite, sessile; blade straight, filiform, succulent, coriaceous, base attenuate, margins entire, apex acuminate. Flower solitary, axillary or extra-axillary. Calyx deeply 5-parted, lobes greenish or reddish brown, triangular, apex sharply acute, glabrous. Corolla tubular-urceolate, straight; corolla tube yellowish white or pinkish white, glabrous, slightly inflated at base; lobes spatulate, apex acute, outside yellowish white with reddish brown bands along margin, inside green or greenish brown; apically connate and forming a cage-like structure. Corona double. Pollinium broadly ovoid, yellow. Ovaries 2, ovoid, glabrous. Fruits follicles, usually 2, linear-lanceolate in outline, green when young, turning reddish-brown with age. Seeds oblong, with a single coma of hairs, silky white.

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Ceropegia boonjarasii Kidyoo

Twining herbs. Leaves opposite, linear or linear-laceolate, 6–14 × 0.3–1 cm, chartaceous to coriaceous, apex acute to acuminate, base cuneate, acute to obtuse with 1–2 small ovate colleters, margins entire, slightly revolute, occasionally ciliate, glabrous. Inflorescences 1–2-flowered, extra-axillary. Calyx lobes free, pale green or reddish brown, lanceolate, apex acuminate, glabrous. Corolla tubular-infundibuliform, 4–5 cm long, upright, yellowish white to greenish white with reddish brown lines along the tube length; tube glabrous, inflated at base; lobes ovate-lanceolate, apex obtuse, each lobe reduplicate from near the base, tips connate, the inner distal portion green with long purple hairs at the margins. Corona biserate; interstaminal corona joined to form a shallow cup, lobes deeply bifid, white to purplish white and covered with sparsely purple hairs. Pollinium broadly ovoid, yellow. Follicles 2, slightly diverging, linear in outline, 11–13 cm long. Seeds oblong-elliptic; coma white.

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Ceropegia cochleata Kidyoo

Decumbent or twining herb, with clear latex in all parts. Leaves opposite; elliptic, oblong to lanceolate, coriaceous, acute to attenuate at base, acute to acuminate at apex; margins entire, slightly revolute, ciliate. Inflorescences as 1–2-flowered cymes, extra-axillary. Sepals pale green or reddish brown, linear-lanceolate, sharply acute at apex, abaxially pubescent. Corolla tubular–funnel-shaped, upright, curved; corolla tube yellowish white to pinkish white with reddish brown bands or dots, glabrous to sparsely pubescent, inflated at base; mouth of the tube covered with long white hairs; corolla lobes narrowly lanceolate, basal part not twirled, yellow, midrib with long white hairs, folded outward in half lengthwise, upper part abruptly narrowed to a slender tail (tightly twisted in bud), loosely twisted. Corona double. Pollinium broadly ovoid, yellow. Follicles usually 2, linear-lanceolate in outline, green when young but turning reddish brown with age. Seeds oblong; coma silky white.

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Ceropegia digitiformis Kidyoo

Twining herbs, with clear latex in all parts. Leaves opposite, ovate, elliptic, oblong to lanceolate, fleshy coriaceous, base acute to obtuse or rounded, apex acute to acuminate; margins entire, ciliate. Inflorescences 1‒3 flowered cyme, extra-axillary. Sepals green or green with reddish brown tint at the apex, linear-lanceolate, apex sharply acute, glabrous abaxially. Corolla tubular-funnel, upright, slightly curved; corolla tube creamy white with reddish brown bands or dots, inflated at base, glabrous; lobes triangular-ovate, apex acute to blunt, glabrous, folded outward in half lengthwise, apices connate, greenish to pinkish white with reddish brown dots and reddish brown or purple apex. Corona double. Pollinium broadly ovoid, yellow. Follicles usually 2, linear-lanceolate in outline, green when young and turning reddish brown with age. Seeds ovate-oblong; coma silky white.

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Ceropegia foetidiflora Kidyoo

Decumbent or twining herb, with clear sap in all parts. Leaves opposite, coriaceous, pubescent; ovate or ovate-elliptic or elliptic, 2.4–5.1 × 1.5–2.4 cm, apex acute, margins entire and ciliate; base acute, obtuse to rounded with 1–2 small colleters. Inflorescences 1–2-flowered cymes, extra-axillary. Calyx deeply 5-parted; lobes yellowish green or reddish brown, linear, sharply acute at apex, abaxially pubescent. Corolla tubular-funnel shaped, upright,curved; corolla tube yellowish white to pinkish white with reddish brown bands or dot lines alternate to the sepals, glabrous, 2.9–3.7 cm long, inflated at base, the interior of the inflated portion maroon, purple brown to dark purple and covered with long white hairs; corolla lobes lanceolate, apex acute, each lobe reduplicate from near the base, tip connated, lower part of lobe yellow, covered with long white hairs only at the midrib, upper part of lobe green, with purplish hairs. Corona double, interstaminalcorona formed by five lobes, joined to form a shallowcup, apex of lobes bifid, segments triangular, purple to darkpurple and covered with white hair. Pollinium broadly ovoid, yellow. Fruits follicles usually 2, linear-lanceolate in outline, green when young but turning reddish brown with age. Seeds oblong, brown; coma silky white.

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Ceropegia suddeei Kidyoo

Perennial erect herb, with clear latex in all parts. Leaves opposite, linear to linear-lanceolate, slightly V-shaped in cross section, coriaceous, attenuate at base, acute to acuminate at apex, margins entire, lightly revolute with scattered hairs. Inflorescence a 1-flowered cyme, axillary or extra-axillary. Calyx deeply 5-parted; sepals yellowish green to green, linear-lanceolate, sharply acute at apex, glabrous. Corolla tubular-urceolate, upright, not curved; corolla tube almost brown to purple–brown with 5 white bands opposite to the sepals, glabrous, slightly inflated at base; lobes narrowly linear-lanceolate, drawn out into long tails, brown to purple–brown; basal part loosely twisted; margins slightly reflexed; upper parts overlapping and tightly right twisted. Corona double. Pollinium broadly ovoid, yellow. Ovaries 2, glabrous. Follicles usually 2, linear-lanceolate in outline, green when young and turning reddish–brown with age. Seeds oblong, coma silky white.

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