Hoya angustifolia Traill 1830

Type description:

In Transactions of the Royal Horticulture Society 7 (1830) 29.  James Traill.  Hoya angustifolia Traill. Leaves narrowly-lanceolate, Native of China. Narrow leaved Hoya. Shrub twining. Leaves membranaceous. Leaflets of corona without any furrow beneath.

Other literature:
           
In Dictionary of the Royal Horticulture Soc. (1830).  Hoya angustifolia Traill. Slender climber, young shoots sparsely hairy. L. linear-lanceolate, 4 - 6 in. long 1/2 in. wide, fleshy, acute, deep green fl. white with small purple eye, about 3/4 in. across; umbels 8 - 12 fld.; pedicels 1 in. long. China.

In General System of Gardening 4 (1837) 127.  G. Don.  Hoya angustifolia Traill. leaves narrow-lanceolate. Woody shrub, twining. Native of China. Narrow-leaved hoya.

In Journal of the Linnean Society 26 (1889) 116. W. B. Hemsley. The name Hoya angustifolia, Traill (Trans Hort. Soc. Lond. vii. p. 29), was proposed for a cultivated plant, of Chinese origin the flowers of which were unknown.  

In Enumeration of Plants from China, Formosa, Hainan, the Corea, the Luchu Archipelago 2 (1899-1902) 116.  Hoya angustifolia Traill. The name was proposed for a cultivated plant, of Chinese origin, the flower of which were unknown.
Same notation in Journal of the Linnean Society 26 (1889) 116.

In Hortus III. (1976) 574.  Hoya angustifolia Traill not Elmer. Slender climber stems and leaves pubescent; leaves linear-lanceolate to 6” long; infl. few-flowered; corolla white to 3/4” across. Corona purple at center. China.

Note: See under H. pottsii Trail in Linnean Society Journal.