Hoya rostellata Kidyoo

Share on facebook
Share on google
Share on twitter
Share on linkedin

Scientific name

Hoya rostellata
Kidyoo

Clade/Class

Mesangiosperms

Group

Spermatophytes

Family

Apocynaceae

Genus

Hoya

Clade/Subclass

Asterids

Order

Gentianales

Sub Family

Asclepiadoideae

Tribe

_

Climbing epiphyte with white latex in all parts. Leaves opposite; blade thick, rigid, coriaceous, obovate or oblanceolate, margins entire, glabrous; apex aristate-acuminate, recurved; base obtuse to rounded. Inflorescences extra-axillary, umbel, 8–21–flowered. Calyx greenish to reddish brown, lobes 5, nearly divided to the base, ovate, apex acute, adaxial with a small basal gland between lobes. Corolla rotate, white or creamy white, adaxial surface densely puberulent except the apex of corolla lobe, abaxial surface glabrous; corolla lobes triangular-ovate; margin reflexed, revolute; apex acute, revolute. Coronal scales creamy or pinkish white, fleshy, obovate, upper surface slightly concave, lower surface sulcate. Pollinia obliquely oblong, yellow, apex truncate, margins pellucid extending over the dorsal margins of the pollinia. Pistil with 2-ovaries, ovoid, glabrous.

Habitat

on limestone rock and climbs up on trees in open or shady areas. It is frequently found in the edge of evergreen forest from about 400 to 1,050m a.s.l.

Locality

Chai Prakan district, Chiang Mai province

Date of collection

01/06/2013

Type specimen

M. Kidyoo 1590 (holotype BCU, isotype BKF)