Rhododendron hartleyi Sleumer

Blumea 1973. 21: 366.

WFO ID: wfo-0000400624

IPNI ID: urn:lsid:ipni.org:names:332550-1

Verified by:

Description

Shrub to c.5m. Twigs c.2mm in diameter, slender, laxly sub-stellately scaly; internodes 2–3cm. Leaves 4–5 together in pseudowhorls. Blade 45–75 x 15–30mm, narrowly ovate to narrowly elliptic, rarely narrowly sub-obovate; apex gradually tapering, sub-acute; margin entire, slightly revolute; base tapering; obscurely scaly above, distinctly laxly scaly below. Scales flat, sub-stellate; centre small, somewhat impressed, finally blackish. Mid-vein slightly impressed above, raised below; lateral veins moderately irregular, 7–8 per side, with a moderately dense, raised reticulation on both sides. Petiole 18–25 x c.1mm. Bracteoles filiform to elongate spathulate, 10–15mm, the apex up to 2mm broad. Inflorescence 6–8-flowered. Pedicels c.15 x 1mm, slender, red, densely, shortly white, patent hairy. Calyx c.2.5mm in diameter, oblique, saucer-shaped, obscurely 5-lobed. Corolla tubular, slightly curved, slightly dilated towards the mouth, slender, white, laxly sub-stellately scaly outside, laxly hairy in the proximal 1⁄3 inside; tube 60–65 x 3–4 x 5–6mm; lobes c.13 x 10mm, obovate, spreading or more or less reflexed, glabrous on both sides. Stamens with the filaments hairy for the proximal 20mm, glabrous distally, slightly exserted from the tube; anthers c.2.5mm, oblong, the base obtuse. Disc slightly hairy. Ovary 5–6 x c.1.5mm, cylindrical, slightly greyish-white hairy, tapering distally; style 60–65mm, laxly patently hairy proximally for 10–15mm, laxly patently hairy distally, not scaly; stigma 5-lobed.

Distribution

Papua New Guinea (E), Morobe District, above Bakaia, 15 miles SE of Garaina.

Altitude

Habitat

Epiphytic in moss forest

Nomenclatural History

Notes

References

Argent, G. (2006) Rhododendrons of subgenus Vireya. RHS:London. Page:180