栏目

越南密脉木Myrioneuron tonkinense Pitard

越南密脉木Myrioneuron tonkinense Pitard

别名:中越密脉木;

科名:茜草科 Rubiaceae

属名:密脉木属 Myrioneuron

《中国植物志》第71(1)卷312页
  2. 越南密脉木(海南植物志)
  Myrioneuron tonkinensis Pitard in Lecomte, Fl. Gen. Indo-Chine 3: 193, fig. 17. 1923; Merr. in Lingnan Sci. Journ. 11: 57. 1932; 海南植物志 3: 315, 图743. 1974.

《Flora of China》 Vol. 19 (2011)
Myrioneuron tonkinense  Pitard in Lecomte Fl. Indo-Chine. 3: 193. 1923.
越南密脉木   yue nan mi mai mu
Herbs, sometimes suffruticose, to 1(-2) m tall; branches densely puberulent, papillose, or tomentulose. Petiole 0.8-3 cm, densely puberulent to tomentulose; leaf blade drying papery and grayish green, obovate, elliptic-oblong, or elliptic, 12-28 × 4-11 cm, adaxially glabrous, abaxially densely puberulent, base acute to cuneate, apex acute or rounded then abruptly acuminate; secondary veins 9-18 pairs; stipules ovate to oblong, 12-25 mm, densely puberulent, densely striate veined, acute or shortly 2-lobed. Inflorescences terminal and/or usually pseudoaxillary, subsessile, congested-cymose to subcapitate to shortly racemiform, subglobose to ovoid, 1-3 cm; bracts ovate or ovate-lanceolate, 10-25 mm, densely puberulent, densely longitudinally veined, acute to acuminate. Flowers subsessile or with pedicels to 3 mm. Calyx densely puberulent; hypanthium portion subglobose to ovoid, ca. 2 mm; limb divided to base; lobes linear-subulate, 6-14 mm. Corolla yellow, tubular; tube 7.5-8 mm; lobes 2.5-3 mm. Berries subglobose, 3-4 mm in diam. Fl. Jun-Aug, fr. Oct-Dec.
Dense forests; below 100-1700 m. Guangdong, Guangxi, Hainan, Yunnan [N Vietnam].
H. S. Lo (in FRPS 71(1): 312. 1999) recognized two forms of this species: "f. tonkinensis" [sic!] and "f. longipes Lo." However, Lo failed to provide the latter name with a Latin description or diagnosis (Vienna Code, Art. 36.1) and an indication of a type (Art. 37.1); therefore, neither name was validly published.H. S. Lo (in FRPS 71(1): 312. 1999) recognized two forms of this species: "f. tonkinensis" [sic!] and "f. longipes Lo." However, Lo failed to provide the latter name with a Latin description or diagnosis (Vienna Code, Art. 36.1) and an indication of a type (Art. 37.1); therefore, neither name was validly published.

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