Hoya dasyantha Tsiang 1936

Type descryption:

            In Sunyatsenia 3 (1936) 174-175. Tsiang.  Hoya dasyantha Tsiang, sp. nov.
Suffrutex epiphyticus scandens praeter corolla intus farinosa glaber, ramulis cinereis 1 mm. diametro, internodiis 6 ad 13 cm. Longis. Folia chartacea late ovata 4 ad 7.5 cm. longa 3 ad 4.8 cm. lata breviter acuminata, basi rotundata, nervis utraque leviter elevatis lateralibus 4 ad 5 jugis, venis transversis conspicuis, supra petiolum 4‑ad 6‑glandulifera, petiolo 5 mm. longo. Cymae umbelliforme ad 22-florae, cicatricibus pedicellorum paucis, foliis breviorae, pedunculo 2..5 ad. 5 cm. longo 1 mm. diametro, pedicello 1.2 cm. Longo. Flores alba 8 mm. diametro, calice glabro, corolla cinaracteres sectionis Euhoyae, intus farinosa, angulo postero coronae acuto. Gynostegium gynaeciumque characteres generis. Folliculi non visi.
Epiphytic climbing subshrub glabrous except the corolla which is mealy inside; branchlets grayish, 1 mm. in diameter; internodes 6‑13 cm. long: Leaves chartaceous, broad ovate, 4‑7.5 cm. Long, 3-4.8  cm. wide, shortly acuminate, rounded at the base; nerves slightly elevated  on both surfaces, lateral nerves 4‑5 pairs, veinlets transverse, conspicuous; glands 4 to 6 in a group above the petiole; petiole 5 mm. long. Cymes umbelliform, to 22‑ flowered, shorter than the leaves, scars of fallen pedicels not many; peduncle 2.5-3 cm. long, 1 mm. in diameter; pedicel 1.2 cm. long. Flowers white, 8 mm. in diameter, calyx glabrous, corolla of the characters of the section Euhoya, mealy inside; posterior angle of coronal-lobes acute. Gynostegium and gynoecium of the generic characters.
Hainan: Man-ning, alt. 1100 m., in woods climbing on rock, F. C. How 72103 (Type), April 12, 1935; Boting, F. C. How 72558, May 23, 1935.
Allied to H. Fungii Merrill, differing from it in smaller leaves, densely flowered inflorescence, smaller flowers and glabrous calyx.

Other literature:

            In Flora Republicae Popularis Siamicae, Toms 63 (1977) 480-481. Tsiang Hoya dasyantha Tsiang in Sunyatsenia 3: 174. 1936; followed by script.