Rhododendron tsusiophyllum Sugimoto

J. Jap. Bot. 31: 64 (1956)

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Description

Dwarf shrub, to c.30cm; young shoots covered with adpressed flattened strigose hairs. Leaves monomorphic, obovate, 1-1.2 x 0.5-0.7cm, 1.7-2 x as long as broad, apex acute, base cuneate, margin entire, ciliate, upper surface ± glabrous when mature, lower surface with a few strigose hairs on midrib, otherwise glabrous; petiole c.lmm, strigose. Inflorescence l-4~flowered; pedicels very short, apparently hairy. Calyx minute, lobes ciliate. Corolla (4-)5-lobed, tubular-carnpanulate, pink in bud, becoming white, c.9mm; tube c.6mm, broadest towards base, pubescent on outer surface. Stamens (4-)5, as long as corolla, filaments pubescent in lower half. Ovary strigose; style glabrous. Capsule c.5mm, ovoid.

Distribution

Japan (S Honshu and adjacent islands)

Altitude

Habitat

Open slopes

Nomenclatural History

Tsusuiophyllum tanakae Maxim., Rhododendr. As. Orient. 12, t.3(1870) - basionym. R. tanakae (Maxim.) Ohwi, Fl. Japan 889 (1953) & Bull. Nat. Sci. Mus. Tokyo 33: 81 (1953) ? comb. Inval, non R. tanakai Hayata, Ic. PI. Formosan. 4: 15 (1914)

Notes

References

Chamberlain, D.F. & Rae, S.J. (1990) A Revision of Rhododendron IV Subgenus Tsutsusi. Edinburgh Journal of Botany 47(2):138