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4. Erycibe Roxburgh, Pl. Coromandel. 2: 31, t. 159. 1798.
丁公藤属 ding gong teng shu
Stranglers, woody or scandent shrubs. Stems lenticellate, young parts glabrous or reddish tomentose, hairs 2-armed or stellate (or ?simple). Leaves petiolate, entire, leathery or papery. Inflorescences terminal or axillary, racemose or paniculate; bracts early deciduous, usually minute. Flowers small, fragrant. Sepals free, persistent, subequal, leathery, usually pubescent abaxially. Corolla white or yellow, deeply 5-lobed; tube short, glabrous outside; lobes of limb 2-lobulate apically, midpetaline bands densely appressed pubescent outside; lateral lobules rather thin, glabrous, with distinct or indistinct venation. Stamens included; filaments triangular or laterally concave; anthers obtuse or acuminate apically, cordate basally, sometimes truncate to retuse at both ends; pollen not spiny. Ovary globose or ellipsoid, 1-loculed, 4-ovuled. Stigma subsessile, ± conical, with 5-10 longitudinal, straight or spirally twisted ridges. Fruit a slightly fleshy berry. Seed 1.
Approximately 67 species: mainly in tropical Asia, Australia, Japan, and Malesia; ten species in China.
Two accounts of the genus established the taxonomic concepts adopted here: How (Sunyatsenia 6: 221-230. 1946) provided keys, descriptions, and lists of specimens examined;
Hoogland (Blumea 7: 342-361. 1953) nomenclaturally revised the entire genus, including Chinese taxa described up to that time.
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| 1 |
Branchlets and abaxial surface of leaves ± densely rust colored or brownish pubescent. |
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(2) |
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Branchlets glabrous or pubescent; leaves glabrous or sparsely pubescent. |
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(3) |
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| 2 (1) |
Corolla ca. 12 mm, lobules fimbriate; leaves 6.5-18 cm, with 5-9 pairs of lateral veins (Hainan, Guangdong, Guangxi) |
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1 Erycibe hainanensis |
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Corolla 7.5-9.5 mm, lobules entire; leaves 2.5-9 cm, typically with 3 or 4 pairs of lateral veins (Yunnan) |
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2 Erycibe expansa |
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| 3 (1) |
Panicles often terminal, rarely axillary; inflorescences often longer than leaves, 5-24 cm. |
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(4) |
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Panicles or racemes terminal and axillary; axillary inflorescences usually much shorter than leaves, 1.5-11 cm. |
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(5) |
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| 4 (3) |
Corolla lobules erose-dentate; leaves oblong, lanceolate-oblong, or elliptic, 7-18 cm, abaxially sparsely pubescent with 2-armed hairs or subglabrous, lateral veins 6 or 7 pairs |
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3 Erycibe subspicata |
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Corolla lobules ± entire or undulate; leaves oblong-lanceolate, 5-9 cm, glabrous, lateral veins 3 or 4 pairs |
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4 Erycibe myriantha |
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| 5 (3) |
Inflorescences racemose, axillary, few flowered, 1.5-2 cm |
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5 Erycibe oligantha |
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Inflorescences paniculate or racemose, terminal or axillary, many flowered, 2-11 cm or longer. |
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(6) |
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| 6 (5) |
Leaf blade papery or rigidly so. |
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(7) |
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Leaf blade leathery or thickly so. |
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(8) |
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| 7 (6) |
Leaf blade elliptic or oblong-elliptic; corolla lobules oblong-ovate, margin crenulate; ovary globose |
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9 Erycibe sinii |
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Leaf blade broadly elliptic; corolla lobules oblong-elliptic, margin entire or undulate; ovary columnar |
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10 Erycibe henryi |
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| 8 (6) |
Leaf blade elliptic or obovate, 6.9-9 cm, apex obtuse, acute, or short acuminate; corolla lobules undulate |
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8 Erycibe obtusifolia |
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Leaf blade ovate-elliptic or oblong-elliptic, 7-15 cm, apex ± abruptly acuminate; corolla lobules erose. |
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(9) |
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| 9 (8) |
Fruit ellipsoid; corolla lobules obovate to subcuneate; leaves usually with 5-7 pairs of lateral veins |
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6 Erycibe elliptilimba |
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Fruit subglobose; corolla lobules obcordate; leaves usually with (7 or) 8(-10) pairs of lateral veins |
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7 Erycibe schmidtii |
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Lower Taxa
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