Pflanzenwissen · Art
DESCRIPTION Erect / decumbent herbs, 20 - 60 cm tall; stem branched, woody at base, terete, green to brownish-green, densely villose; internodes 2 - 10 cm long.
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DESCRIPTION Erect / decumbent herbs, 20 - 60 cm tall; stem branched, woody at base, terete, green to brownish-green, densely villose; internodes 2 - 10 cm long. Stipules 3 - 6 long subulate or linear with 1 - 3 filiform lobes, pubescent, persistent. Petiole 1 - 2 cm long, slender, pale green with densely pink pubescence. Leaf blades 3 - 11.5 × 1. 5 - 3.5 cm, elliptic or ovate to ovate-lanceolate, acute or acuminate at apex, cuneate or rounded to subcordate at base; margin entire, undulate, ciliate; adaxially green, abaxially pale green, densely pubescent on both surfaces; secondary veins 7 - 16 on either sides. Inflorescence terminal corymb, 2.5 - 3.5 cm in diameter; peduncle 3 - 5 mm long, terete, densely villose; bract and bracteoles similar, lanceolate, 6 - 10 × c. 1 mm, green pubescent, prominently nerved, persistent. Pedicels 2 - 2.5 mm long, pale green, densely pink villose. Flowers 22 - 25 mm long. Hypanthium 1.75 - 2 × 2.5 - 3 mm, obovoid, pale pink with dense pink villose hairs. Calyx lobes filiform, unequal in length, 4 - 7 × c. 0. 5 mm, acute at apex, pale pink, pubescent. Corolla infundibuliform, 20 - 23 mm long, white with pale pink tinge from base towards the middle of corolla tube, puberulent from the base towards the middle and pubescent on the ridges of the corolla lobes externally; lobes c. 3.5 - 4 × 3.5 - 4 mm, ovate, acute at apex, minutely keeled on back. Long-styled flowers: internally with a villous ring just above the middle of the corolla tube, followed by dense long pubescence towards the throat and small hairs to the lobes and glabrous below; stamens inserted in the middle of corolla tube below the villous ring; filaments 0.50 - 0.75 mm long; anthers oblong-linear 2.75 - 3 mm long, white or pale yellow; style filiform, 12 - 13 mm long, ciliate; stigma c. 3.5 mm long, linear to oblanceolate, white pale yellow, glabrous. Short-styled flowers: internally with a villous ring just below the corolla throat, followed by dense short pubescence towards the lobes and dense long pubescence towards the base of corolla tube; stamens inserted just above the middle of corolla tube; filaments 1.75 - 2 mm long; anthers oblong-linear 2.75 - 3 mm long, white or pale yellow; style filiform, 5 - 5.5 mm long, ciliate; stigma 2.5 - 3 mm long, oblanceolate, pale yellow, glabrous to papillose. Ovary 2 - celled, ovules numerous; disc 0.75 - 1 mm high. Capsule obcordate, 5 - 6 × 7 - 12 mm, pale green, pubescent; seeds angular, pale brown. Flowering August-October, Fruiting October-December.
Pflege
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Vorkommen (Status unklar)
Tibet
HABITAT, DISTRIBUTION AND CONSERVATION STATUS. — Ophiorrhiza medogensis was known only from Xizang of Medog of China / Tibet on slopes of the broad leaved forest at an altitude around 1700 m. In India, it is growing in the sloppy areas near the Mayodia, Dibang Valley district and near Siko Dido Water fall, Shi-Yomi District of Arunachal Pradesh, NE India. The plants were growing in the moist sloppy areas at an altitude varying from 1100 to 1700 m a. s. l. in association with Amomum sericeum Roxb., Henckelia pumila (D. Don) A. Dietr., Elatostemma sp., Impatiens arguta Hook. f. & Thomson, Pilea sp. At present, O. medogensis perceives no serious threat to its existence in the field. During our expedition, we observed three populations with more than 50 mature individuals. According to the present field observation data, the new species is tentatively classified as Data Deficient (DD) (IUCN 2017).
Sortenvielfalt
Ophiorrhiza medogensis var. shiyomiensis
Ophiorrhiza medogensis var. shiyomiensis Hareesh & M.Sabu
Marktplatz
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Nächster Schritt
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DESCRIPTION Erect / decumbent herbs, 20 - 50 cm tall; stem branched, woody at base, terete, green to pinkish-green, pubescent; internodes 2 - 13 cm long. Stipules c. 1 cm long, with 2 - 4 subulate to filiform lobes, pubescent, persistent. Petiole 1 - 2.5 cm long, slender, pale green or rarely pale pink with densely pink pubescence. Leaf blades 3.5 - 9 × 1.75 - 4 cm, elliptic or ovate to ovate-lanceolate, acute or acuminate at apex, rounded to subcordate at base; margin entire, undulate, ciliate; adaxially green, rarely with yellow coloration, sparsely pubescent to pubescent, abaxially pale green, pubescent; secondary veins 9 - 14 on either sides. Inflorescence terminal corymb, 2 - 3 cm in diameter; peduncle c. 3 mm long, terete, densely villose; bract and bracteoles similar, lanceolate, 10 - 13 × c. 1 mm, green or rarely with purplish tinge, pubescent, prominently nerved, persistent. Pedicels 2 - 2.5 mm long, pale green, densely villose. Flowers 20 - 24 mm long. Hypanthium 1.5 - 2 × 2 - 2.5 mm, obovoid, pale green with dense pink villose hairs. Calyx lobes filiform, unequal in length, 3.5 - 6 × c. 0.5 mm, acute at apex, pale green to green, pubescent. Corolla infundibuliform, 18 - 20 mm long, pale yellow with green tinge towards the lobes, densely villose; lobes c. 2 × 1.5 mm, ovate, acute at apex, minutely keeled on back. Long-styled flowers: internally with a villous ring just above the middle of the corolla tube, followed by dense long pubescence towards the throat and small hairs to the lobes and glabrous below; stamens inserted in the middle of corolla tube below the villous ring; filaments 0.60 - 0.75 mm long; anthers oblonglinear 1.75 - 1.9 mm long, white or pale yellow; style filiform, 10 - 11 mm long, ciliate; stigma c. 2 mm long, linear to oblanceolate, pale yellow, glabrous to papillose. Short-styled flowers: internally with a villous ring just below the corolla throat, followed by dense short pubescence towards the lobes and dense long pubescence towards the base of corolla followed by 3 mm glabrous portion; stamens inserted just above the middle of corolla tube; filaments 1.5 - 1.75 mm long; anthers oblong-linear 1.75 - 2 mm long, white or pale yellow; style filiform, 4 - 4.5 mm long, ciliate; stigma 2 - 2.5 mm long, oblanceolate, pale yellow, glabrous to papillose. Ovary 2 - celled, ovules numerous; disc 0.5 - 0.75 mm high. Capsule obcordate, 5 - 8 × 5 - 11 mm, pale green, pubescent; seeds angular, pale brown.
(Fig. 1)
(Fig. 2)
PHENOLOGY. — Flowering started in August.
HABITAT, DISTRIBUTION AND CONSERVATION STATUS. — The new species is known only from type locality, near Siko Dido Water fall towards Mechuka, Shi-Yomi District of Arunachal Pradesh. The plants were growing in the moist sloppy areas at an altitude varying from 1100 to 1200 m a. s. l. During our expedition, we observed three populations with more than 50 mature individuals. It is growing in association with Impatiens paramjitiana Gogoi & Borah, I. arguta Hook. fil. & Thomson, Pilea sp. According to the present field observation data, the new species is tentatively classified as Data Deficient (DD) (IUCN 2017).