All Floras      Advanced Search
FOC Vol. 14 Page 391 Login | eFloras Home | Help
FOC | Family List | FOC Vol. 14 | Apiaceae | Rhododendron

378. Rhododendron traillianum Forrest & W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 8: 204. 1914.

川滇杜鹃 chuan dian du juan

Shrubs or small trees, 2–8 m tall; shoots gray- to fawn-floccose when young, soon glabrescent. Petiole 10–20 mm, glabrescent; leaf blade leathery, oblong-lanceolate to elliptic, sometimes oblanceolate, 5–12 × 2.5–5 cm; base rounded; apex acute and apiculate or acuminate; abaxial surface pale brown to fawn or red-brown, indumentum dense, 1-layered, hairs radiate, arms short and pyriform or long and ribbonlike; adaxial surface glabrous. Inflorescence racemose-umbellate, 8–15-flowered; rachis ca. 10 mm, floccose. Pedicel 1.5–2 cm, sparsely brown-floccose; calyx lobes 5, ca. 1 mm, broadly triangular, margin ± ciliate; corolla funnel-campanulate or campanulate, white to pink, with crimson spots and purple-red basal flecks, 2.5–5 cm, lobes 5, deeply emarginate; stamens 10, unequal, filaments pubescent at base; ovary 5–7 mm, glabrous or sparsely to densely red-brown-floccose; style ca. 2.2 cm, glabrous. Capsule cylindric, 15–25 × 4–8 mm. Fl. May–Jun, fr. Aug–Oct.

Abies forests, coniferous forest margins, Rhododendron thickets, mountains, rocky slopes; 3000–4300 m. SW Sichuan, SE Xizang, NW Yunnan.


1 Leaf blade apex acute, apiculate, abaxial surface pale brown to fawn, with thin, powdery indumentum, hair arms short and pyriform; corolla 2.5–3.5 cm; ovary glabrous or sparsely floccose.   378a var. traillianum
+ Leaf blade apex acuminate, abaxial surface red-brown with thick, felted indumentum, hair arms long and ribbonlike; corolla 4–5 cm; ovary densely floccose.   378b var. dictyotum

Lower Taxa


 

Flora of China @ efloras.org
Browse by
Volume
Family
Genera
Advanced Search


Flora of China Home


Checklist

 

 

 |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |