Hoya picta Blume 1849
Type description: I would assume this name is invalid as it was used in 1848 by Siebold except for a hoya and not as here Acanthostemma (an actual hoya).
In Rumphia 4 (1849) 29. K. L. Blume. 6. A. pictum: foliis (parvis) subrotundo‑ovatis mucronatis utrinque purpureo‑pictis et glandiulosis subtus convexis; racemis umbelliformibus 1ongiuscle pedunculatis multifloris; corolla intus papilloso‑velutina.— Habit. In montanis Javae occidentalis arboribus innasecns.
Translation: leaves (small) slightly round to ovate, sharply pointed; both sides purple‑stained and glandular; below convex; shaped like an umbel with somewhat long peduncles many flowered; corolla papilose‑velvety inside. Habitat: Innate in the mountains of Western Java, in trees.
Other literature:
In Museum Botanicum Lugduno-Batavorum 1 (1849) 58. C. L. Blume. 147. Acanthostemma pictum Bl. fig. X.: foliis (parvis) subrotundo‑ovatis mucronatis utrinque purpureo‑pictis et glandulosis subtus convexis; racemis umbelliformibus longiuscule pedunculatis multifloris; corolla intus papilloso‑velutina. Bl. in Rumphia l. c.— In montanis Javae occidentalis arboribus innascens.
Translation: leaves (small) somewhat round-ovate mucronate both sides purple spotted and glandular convex below; racemes umbel formed somewhat long pedunculate multiflowered; corolla inside papilose velvety. Blume in Rumphia as above.— in the mountains of Eastern Java growing in the trees.
In Annales Botanices Systematicae 3 (1853) 64. W. G. Walpers. 6. A. pictum Blume l. c. p. 29. & Mus. bot. Lugd. Bat. 51. no. 147. fig.10. t— Foliis (parvis) subrotundo‑ovatis mucronatis, utrinque purpureo‑pictis et glandulosis, subtus convexis; racemis umbelliformibus longiuscule pedunculatis multifloris; corolle intus papilloso-velutina. —Crescit in montanis insulae Javae.
Translation: Leaves (small) almost round‑ovate mucronate, both sides purples stained and glandular, below convex; racemes umbellate on long many flowered peduncles; corolla inside papillose. velvety. It lives in mountains on the island of Java.