Hoya collettii Schlechter 1913

Type description:

In Journal of the Linnean Society 28 (1891) 88. Collett. (Hoya collettii, Schlechter).
Physostelma carnosa, Coll. et Hemsl., n. sp. Frutex humilis, undique glabra, ramis floriferis crassis carnosis, internodiis brevissimis. Folia petiolata, carnosa, lineari‑oblonga vel lineari‑lanceolata, 3‑4½ poll. longa, obtusiuscula, basi producta, rotundata, supra nitida, subtus pallidiora costa crassa elevata; petiolus crassus, 3‑4 lineas longus. Flores circiter 9 lineas diametro, fasciculati vel subumbellati, fasciculis subsessili  bus, pedicellis graciliusculis circiter pollicaribus; calycis minuti segmenta tenuia, oblouga, obtusissima; corolla tenuis, sphaeroidea, inflata, extus glabra, intus minute papillosa, lobis brevibus deltoideis subobtusis; coronae squamae amplae, carnosae, basi valde productae, rotundatae vix recurvae; ovaria glabra.  Folliculi ignoti. Shane hills 6000 feet.

Characterized by narrow fleshy leaves borne on thick branches, and nearly sessile fascicles of almost spherical flowers with very broad thick coronal appendages.

Translation: Low growing shrub, glabrous allover,  branches flower bearing thick fleshy, internodes very short. Leaves petiolate fleshy, linear‑oblong or linear‑lanceolate 3‑4½  inches long, somewhat obtuse, base elongated, rounded, above shining, above paler  midrib thick elevated; petioles thick 3‑4 lines long. Flowers about ¾ inch in diam., fascicled or somewhat umbellate, fascicles almost sessile, pedicels somewhat slender about 1 inch; calyx minute segments thin, oblong, very obtuse; corolla thin, spheroid, inflated, outside glabrous, inside minutely papillose, lobes short deltoid somewhat obtuse; corona scales large, fleshy, bases greatly extended, rounded barely recurved. ovaries glabrous. Follicles not noted.

Other literature:

In Botanische Jahrbücher 50 (1913) 127. R. Schlechter. H. collettii Schltr. (Physostelma carnosa Collett et Hemsl.) aus Burma ist die wesentlichste Art.

Translation: from Burma it is a definite species.

In The Asclepiadaceae Works of  Friedrich Richard Rudolf Schlechter (1992) 30. A. Nicholas. H. collettii Schlechter (Type of Physostelma carnosa Collett & Hemsley) - 15