Hoya crassicaulis Elmer ex Kloppenburg 1995 Isotype 14440 (UC)

Hoya crassipes Turczaninow 1848 Isotype 2581 (A)

Hoya cumingiana Decaisne 1844 Isotype 1480 (L)

Hoya cupula Kloppenburg, Mendoza & Ferreras 2013 Holotypus 14646 (PUH)

Hoya curtisii King & Gamble 1903 Holotype 2894 (KLU) ?

Hoya darwinii Loher 1910 Holotype 14574 (UC)

Hoya davaoensis Kloppenburg Isotype 49272 Sheet at (B)

Hoya dickasoniana P. T. Li. 1994 Holotype 3032 (A)

Hoya diptera Seemann 1861 Type 320 (DS)

Hoya diptera Seemann 1861 Isotype 320 (GREY)

Hoya diptera Seemann 1861 320 Isotype (A)

Hoya dischorensis Schlechter 1913 Holotype 19834 (B)

Hoya diversifolia Blume 1826 Type s.n. (L) There seems to be 2 sp. here. Sheet was included under H. kuhlii ?

Hoya diversifolia Blume 1826 Type s.n. (L)

Hoya dodecatheiflora Fosberg 1940 Holotype Stewart (BISH)

Hoya dolichosparte Schlechter 1916 Holotype 20642 (B)

Hoya eburnea Kloppenburg, Guevara & Carandang

Hoya edanoi Burton 1991 11655 (A)

Hoya edenii King ex Hooker 1883 Holotype

Hoya eitapensis Schlechter 1909 Holotype 19964 (B)

Hoya elmeri Merrill 1929 Holotype 20652 (UC)

Hoya elmeri Schlechter Unpublished 8896 (B)

Hoya elmeri Merrill 1929 Type 20652