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17. Macropanax Miquel, Bonplandia (Hannover). 4: 139. 1856.
大参属 da shen shu
Trees or shrubs, evergreen, hermaphroditic (?or functionally andromonoecious), unarmed. Leaves simple, palmately lobed, or palmately compound and leaflets 3-7, margin entire or serrate; stipules absent or connate into a short lamina within petiole or absent. Inflorescence a terminal panicle of umbels; secondary axes with a terminal umbel of bisexual flowers, sometimes also with lateral umbels of smaller, later flowering (?functionally male) flowers; bracts small, caducous. Pedicels articulate below ovary, often minutely bracteolate. Calyx entire or 5-toothed. Petals 5, valvate. Stamens 5. Ovary 2(or 3)-carpellate; styles united into a column or partially free apically. Fruit a drupe, subglobose or ovoid, sometimes laterally compressed (especially when dry). Seeds semiterete or laterally compressed; endosperm uniform, ruminate or rugose.
About 20 species: S and SE Asia; seven species (five endemic) in China.
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1 |
Styles united to ca. 3/4 their length, branches free apically. |
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1 M. rosthornii |
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Styles united throughout, forming an unbranched column, stigmas sessile |
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(2) |
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2 (1) |
Inflorescence glabrous throughout (occasionally pubescent in M. undulatus when young, but then leaflets with entire margins) |
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(3) |
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Inflorescence densely shortly pubescent throughout |
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(4) |
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3 (2) |
Mature fruit 8-9 mm in diam.; calyx teeth and stamens 7-10. |
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6 M. decandrus |
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Mature fruit 5-6 mm in diam.; calyx teeth and stamens 5(or 6). |
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7 M. undulatus |
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4 (2) |
Stems and calyx pubescent; leaflets with 4-6 pairs of secondary veins. |
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5 M. paucinervis |
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Stems and calyx glabrous; leaflets with 6-10 pairs of secondary veins |
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(5) |
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5 (4) |
Terminal leaflet elliptic, ca. 2 × as long as wide, base rounded to broadly cuneate; petiole 3-7 cm. |
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2 M. chienii |
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Terminal leaflet narrowly elliptic or oblong to slightly obovate, 2.4-4 × as long as wide, base narrowly acute to cuneate; petiole (8-)10-17 cm |
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(6) |
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6 (5) |
Leaflets (3-)5(-7); fruit ellipsoid to oblong, height greater than diam.. |
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3 M. dispermus |
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Leaflets 3 or 4; fruit broadly ovoid, height not greater than diam.. |
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4 M. serratifolius |
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Lower Taxa
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Treatments in Other Floras @ www.efloras.org
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