Hoya thailandica Thaithong

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Scientific name

Hoya thailandica
Thaithong

Clade/Class

Mesangiosperms

Group

Spermatophytes

Family

Apocynaceae

Genus

Hoya

Clade/Subclass

Asterids

Order

Gentianales

Sub Family

Asclepiadoideae

Tribe

_

Stragging climber. Leaves subcoriaceous, oval, ovate or elliptic, base rounded, apex shortly acuminate, upper surface shining. Inflorescence axillary, pendent, Flowers 10-15 in sub-hemisphaerical umbel. Calyx pale green, sepals boat-shaped, margin finely ciliate, glands 5, alternating with sepals. Corolla white, rotate-campanulate, about 2 cm diam. when fully spread out, lobes ovate as long as corolla tube, apex abruptly acuminate. Corona more or less horizontal, reddish-purple. Pollinia obliquely oblong. Stigma conical, subquadrangular.

Habitat

Evergreen forest, altitude 2000 m

Locality

Doi Inthanon, Chiang Mai Province

Date of collection

23/05/1994

Type specimen

O. Thaithong 1488 (BK holotype, AAU isotype)