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9. Rhododendron subsect. Glischra (Tagg) D. F. Chamberlain, Notes Roy. Bot. Gard. Edinburgh. 36: 116. 1978.
粘毛杜鹃亚组 nian mao du juan ya zu
Fang Mingyuan (方明渊); David F. Chamberlain
Rhododendron subser. Glischra Tagg in J. B. Stevenson, Sp. Rhodod. 135. 1930 ["Glischrum"].
Dwarf shrubs or small trees, bark rough; young shoots densely glandular-setose and long-glandular-hairy; bud scales persistent or deciduous. Leaf blade herbaceous to leathery, oblong, ovate or elliptic to lanceolate; abaxial surface with stipitate-glands or bristles; adaxial surface glabrous or with persistent bristles, even when mature. Inflorescence lax, 6–14-flowered; rachis 5–15 mm; calyx large, 5–15 mm, lobes ± rounded, lingulate; corolla campanulate to funnel-campanulate, 5-lobed, white flushed pink to pink, usually with a purple basal blotch and flecks, lacking nectar pouches; stamens 10; ovary densely glandular-hairy to glandular-setose; style glabrous or glandular or tomentose only at base.
Six species; China, India, Myanmar; six species (three endemic) in China.
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| 1 |
Branchlets with persistent bud scales; leaf blade abaxially thickly white and brown tomentose and sparsely glandular. |
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291 Rhododendron crinigerum |
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Branchlets without persistent bud scales; leaf blade abaxially not thickly tomentose. |
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(2) |
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| 2 (1) |
Corolla campanulate. |
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(3) |
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Corolla funnel-campanulate. |
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(4) |
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| 3 (2) |
Corolla pink, with purple basal blotch inside, 3.5–4 cm; leaf blade 14–22 cm. |
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286 Rhododendron glischrum |
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Corolla white flushed rose, with or without purple flecks inside at base, ca. 5 cm; leaf blade 9–12.
cm |
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287 Rhododendron habrotrichum |
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| 4 (2) |
Pedicels densely tomentose; calyx lobes unequal; leaf blade oblong to obovate, abaxial surface glabrescent. |
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290 Rhododendron x diphrocalyx |
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Pedicels densely glandular-setose; calyx lobes well-developed, regular; leaf blade ovate, elliptic,
lanceolate or oblong-lanceolate to oblanceolate, abaxial surface hairy at least on veins. |
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(5) |
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| 5 (4) |
Leaf blade ovate, lanceolate or elliptic, abaxial surface setulose and tomentose. |
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288 Rhododendron adenosum |
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Leaf blade oblong-lanceolate to oblanceolate, abaxial surface with vesicular hairs on the veins. |
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289 Rhododendron vesiculiferum |
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Lower Taxa
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