中国伞形科植物在线

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Key to Acronema Falconer ex Edgew.

1a. Ultimate segments of basal and lower leaves linear or linear-lanceolate.
    2a. Ultimate leaf segments 2–5 mm wide; petals apex long-linear.
        3a. Rays (5–)8–13, (1.5–)3–5.5 cm; calyx teeth conspicuous, ovate-triangular ...................................................................... 1. A. schneideri
        3b. Rays 3–7, 0.3–3.5 cm; calyx teeth obsolete ...................................................... 2. A. graminifolium
    2b. Ultimate leaf segments 1–2.5 mm wide; petals apex acute or obtuse-acute.
        4a. Root conic; leaf blade 2–5-pinnate ...................................................... 3. A. chienii
        4b. Root tuberous, ovoid-globose; leaf blade 2–3-pinnate ....................................... 4. A. yadongense

1b. Ultimate segments of basal and lower leaves ovate or ovate-lanceolate.
    5a. Bracteoles 1–4.
        6a. Rays 1–2 cm; petals apex linear .................................. 5. A. tenerum
        6b. Rays less than 1 cm; petals apex short-acute, not linear ........................ 6. A. minus
    5b. Bracteoles absent.
        7a. Calyx teeth developed.
            8a. Basal leaf blade ternate, dark purple abaxially; upper leaves heteromorphic ....................................................... 7. A. astrantiifolium
            8b. Basal leaf blade 2–3-ternate-pinnate, not purplish abaxially; upper leaves homomorphic.
                9a. Leaf blade 2-ternate; petals white or pink; calyx teeth ca. 0.2 mm .................................................................. 8. A. sichuanense
                9b. Leaf blade 2–3-ternate-pinnate; petals purple-red; calyx teeth ca. 3 mm ............... 9. A. forrestii
        7b. Calyx teeth obsolete.
            10a. Petals apex acute; fruit oblong, apex slightly separated .................... 10. A. chinense
            10b. Petals apex linear or caudate-acute; fruit ovoid to broad-ovoid, apex not separated.
                11a. Plants 4–25 cm (A. nervosum may be taller); basal and cauline leaves homogeneous; lateral umbels 1–2.
                     12a. Leaves 1–2-ternate.
                         13a. Leaves ternate, leaflets crenulate ................................................. 11. A. muscicola
                         13b. Leaves 2-ternate, leaflets 3-toothed ............................................ 12. A. alpinum
                     12b. Leaves 1–2-ternate-pinnate.
                         14a. Leaflets 2–3 mm wide, entire or 3-toothed .............................................. 13. A. nervosum
                         14b. Leaflets ca. 7 mm wide, irregularly pinnatifid or 3-lobed ........................... 14. A. handelii
                11b. Plants 25–80 cm; basal and cauline leaves heteromorphic; lateral umbels often numerous.
                     15a. Rays ca. 1 cm; pedicels 1–2 mm; petals white ....................... 15. A. brevipedicellatum
                     15b. Rays 1.5–6 cm; pedicels 3–15 mm; petals purple, pink or white.
                         16a. Leaflets of basal leaves entire or apex 2-toothed; rays subequal ......................................................... 16. A. xizangense
                         16b. Leaflets of basal leaves apex 3-lobed, irregularly coarse-toothed or serrate; rays unequal.
                             17a. Basal leaves 1–2-ternate-pinnate; rays very unequal ..................... 17. A. gracile
                             17b. Basal leaves 2–3-pinnate; rays unequal or slightly unequal.
                                 18a. Petals white (sometimes purple), apex densely papillate .......... 18. A. hookeri
                                 18b. Petals purple or white with purplish-red margin, apex glabrous or papillate.
                                     19a. Leaves 2-pinnate, lower pinnae short-petiolulate, leaflets ca. 6 mm wide .............................................. 19. A. commutatum
                                     19b. Leaves 2–3-pinnate, primary and secondary pinnae all long-petiolulate, leaflets 7–15 mm wide .................................... 20. A. paniculatum

周五, 2014-09-26 21:43 -- admin
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Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith