Rhododendron dendricola
Billeder af Rhododendron dendricola
Beskrivelse
R. dendricola (Maddenia). Open voksende stedsegrønne buske (i dyrkning) med afskallende dyb rødlig til lilla bark. Den store tragtformede blomst er hvid med et farverigt svælg. Bladet er aflangt-ovalt ofte med tilspidset spids. Dette er en frostfølsom plante som kan dyrkes i en containere for sin attraktive, ofte duftende blomster. Kræver meget veldrænet jord. Den er en udbredt og variabel art i naturen. Vokser i N-Burma, Arunachal Pradesh, SØ-Tibet og tilstødende områder i V-Yunnan. Vokser som en epifyt eller vokser på sten og klipper fra 900 til 3000 m. Ikke hårdfør i Danmark.
Hans Eiberg
ARS
RBGE Herbarium; R. dendricola
Flora of China
Rhododendron dendricola Hutchinson, Notes Roy. Bot. Gard. Edinburgh. 12: 60. 1919.
?Rhododendron atentsiense Handel-Mazzetti; R. notatum Hutchinson.
Shrubs, sometimes epiphytic, 1–3.5 m tall; old branches gray, less scaly; young shoots green, thin and long, sparsely brown or brownish red scaly. Petiole 5–13 mm, sparsely scaly; leaf blade oblong-elliptic or obovate-elliptic, 7–12 × 2–4.5 cm; base narrow to rounded; apex obtuse, acute, apiculate; abaxial surface pinkish green, scales less than, or 1–4 × their own diameter apart, unequal, reddish brown; adaxial surface sparsely scaly; midrib flat raised abaxially, slightly concave adaxially; lateral veins 8-paired, thin, inconspicuous on both surfaces. Inflorescence terminal, umbellate, 2- or 3-flowered. Flowers fragrant. Pedicel ca. 1 cm, densely scaly; calyx undeveloped, circular, densely scaly; corolla broadly funnelform, white tinged with pale red, ca. 7 cm, tube gray-white-pubescent; stamens 10, unequal, half as long as corolla lobes; filaments pubescent below; ovary 6-locular, densely scaly; style as long as corolla, sparsely scaly below. Capsule cylindric-ovoid, 15–20 mm, densely brown-scaly. Fl. Apr–May, fr. May–Nov.
Mixed forests, thickets, rocks, sometimes epiphytic on trees; 1300–1900 m. SE Xizang, NW Yunnan [NE India, N Myanmar].
Rhododendron atentsiense may not be a synonym of R. dendricola. The calyx lobes of the former taxon are comparatively well developed, up to 5 mm, and they are clearly ciliate. The type specimen of R. atentsiense is said to have been collected at close to 4000 m, which is assumed to be an error.