|
| 1 |
Leaves evergreen, entire |
|
(2) |
| + |
Leaves deciduous, 3-11-lobed |
|
(10) |
| |
|
|
|
| 2 (1) |
Inflorescence corymbose-paniculate. |
|
38 A. laevigatum |
| + |
Inflorescence only corymbose |
|
(3) |
| |
|
|
|
| 3 (2) |
Leaf blade abaxially light green |
|
(4) |
| + |
Leaf blade abaxially white mealy, gray |
|
(7) |
| |
|
|
|
| 4 (3) |
Petioles pubescent. |
|
43 A. pubipetiolatum |
| + |
Petioles glabrous |
|
(5) |
| |
|
|
|
| 5 (4) |
Leaf blade lanceolate. |
|
44 A. fabri |
| + |
Leaf blade oblong |
|
(6) |
| |
|
|
|
| 6 (5) |
Leaves leathery, petiole 2-4 cm; samara 4-4.2 cm. |
|
45 A. kwangnanense |
| + |
Leaves papery, petiole 1-1.5 cm; samara 2.5-2.8 cm. |
|
46 A. oligocarpum |
| |
|
|
|
| 7 (3) |
Leaf blade lanceolate, lateral veins 13-15 pairs; samara 2.2-2.4 cm. |
|
39 A. wangchii |
| + |
Leaf blade elliptic to oblong, lateral veins no more than 10 pairs; samara 2.8-3.2 cm |
|
(8) |
| |
|
|
|
| 8 (7) |
Leaves papery; samara pubescent when immature. |
|
42 A. hilaense |
| + |
Leaves leathery or thickly leathery; samara glabrous |
|
(9) |
| |
|
|
|
| 9 (8) |
Leaf blade 8-14 × 3.5-6 cm, thickly leathery, lateral veins 8-10 pairs. |
|
40 A. crassum |
| + |
Leaf blade 6-9 × 2-4 cm, leathery, lateral veins 5-7 pairs. |
|
41 A. sino-oblongum |
| |
|
|
|
| 10 (1) |
Inflorescence corymbose; nutlet strongly veined |
|
(11) |
| + |
Inflorescence paniculate; nutlet usually not obviously veined |
|
(20) |
| |
|
|
|
| 11 (10) |
Leaves usually 3- or 5-lobed |
|
(12) |
| + |
Leaves usually 7-13-lobed |
|
(15) |
| |
|
|
|
| 12 (11) |
Leaves 3-lobed. |
|
37 A. calcaratum |
| + |
Leaves 5-lobed |
|
(13) |
| |
|
|
|
| 13 (12) |
Petiole, pedicel, and ovary pubescent; leaf small (4.5-5.5 × 2.5-7.5 cm) and petiole short (2-4 cm), petiole and leaves villous. |
|
17 A. pauciflorum |
| + |
Petiole, pedicel, and ovary glabrous; leaf large (5-8 × 5-9 cm) and petiole long (3-6 cm), leaves glabrous |
|
(14) |
| |
|
|
|
| 14 (13) |
Leaf blade 5-8 × 5-9 cm and petiole to 6 cm, relatively less flowered. |
|
18 A. oliverianum |
| + |
Leaf blade to 12 × 4.5-16.5 cm and petiole to 7.5 cm, relatively more flowered. |
|
19 A. serrulatum |
| |
|
|
|
| 15 (11) |
Leaves usually 7- or 9-lobed |
|
(16) |
| + |
Leaves 9-, 11-, or 13-lobed |
|
(18) |
| |
|
|
|
| 16 (15) |
Petiole and peduncle usually pubescent when young, ovary villous. |
|
16 A. duplicatoserratum |
| + |
Petiole, peduncle, and ovary glabrous |
|
(17) |
| |
|
|
|
| 17 (16) |
Both surfaces of leaves glabrous; nutlet including wing 2-2.5 cm. |
|
20 A. palmatum |
| + |
Leaves abaxially pubescent; nutlet including wing 2.6-4 cm. |
|
21 A. ceriferum |
| |
|
|
|
| 18 (15) |
Leaf blade 9-12 cm in diam.. |
|
13 A. japonicum |
| + |
Leaf blade 5-10 cm in diam |
|
(19) |
| |
|
|
|
| 19 (18) |
Leaf blade 6-10 cm in diam., usually 9-, 11-, or 13-lobed, both surfaces white tomentose; ovary white tomentose; branchlets not white mealy. |
|
14 A. pseudosieboldianum |
| + |
Leaf blade 5-6 cm in diam., usually 9-lobed, rarely 7- or 8-lobed, glabrous except tomentose at vein axils; ovary yellowish rough hairy; branchlets white mealy. |
|
15 A. linganense |
| |
|
|
|
| 20 (10) |
Leaves subleathery, 3-lobed at middle, lobes triangular, margin entire or undulate |
|
(21) |
| + |
Leaves papery, deeply 3-, 5-, or 7-lobed, lobes ovate or lanceolate, margin serrate or serrulate, rarely entire or undulate |
|
(22) |
| |
|
|
|
| 21 (20) |
Young branchlets, leaves abaxially, nutlets, and pedicels glabrous; samara wing including nutlet 2.5-2.8 cm, wings spreading horizontally. |
|
35 A. tonkinense |
| + |
Young branchlets, leaves abaxially, nutlets, and pedicels gray-yellow tomentose; samara wing including nutlet 3.5-3.8 cm, wings spreading obtusely. |
|
36 A. fenzelianum |
| |
|
|
|
| 22 (20) |
Inflorescence paniculate-corymbose |
|
(23) |
| + |
Inflorescence paniculate |
|
(24) |
| |
|
|
|
| 23 (22) |
Leaves 5-lobed. |
|
22 A. chingii |
| + |
Leaves 3-lobed. |
|
23 A. confertifolium |
| |
|
|
|
| 24 (22) |
Leaves 3(or 5)-lobed |
|
(25) |
| + |
Leaves 5- or 7-lobed |
|
(26) |
| |
|
|
|
| 25 (24) |
Inflorescence long paniculate with more flowers; leaf blade membranous or subleathery, 3- or 5-lobed, lobes oblong or lanceolate, apex acuminate, margin entire or apex crenulate; inflorescence 5-6 cm; disk glabrous; ovary pilose; samara wing including nutlet 2.5-3 cm. |
|
24 A. wilsonii |
| + |
Inflorescence shortly paniculate with less flowers; leaf blade papery, 3-lobed, lobes ovate or oblong-ovate, apex acute or oblong-acute, margin serrate; inflorescence 3-4 cm; disk pubescent; ovary pubescent; samara wing including nutlet 2-5 cm. |
|
25 A. tutcheri |
| |
|
|
|
| 26 (24) |
Leaves subleathery |
|
(27) |
| + |
Leaves papery |
|
(28) |
| |
|
|
|
| 27 (26) |
Leaves 5-lobed, rarely 7-lobed; nutlet ellipsoid, wings not recurved; sepals light green. |
|
29 A. sinense |
| + |
Leaves 7-lobed, rarely 5-lobed; nutlets globose, wings recurved in upper part; sepals purple. |
|
30 A. kuomeii |
| |
|
|
|
| 28 (26) |
Nutlets strongly veined, pubescent. |
|
26 A. erianthum |
| + |
Nutlets not veined or not obviously veined, glabrous |
|
(29) |
| |
|
|
|
| 29 (28) |
Ovary and disk glabrous. |
|
27 A. flabellatum |
| + |
Ovary hairy, disk hairy or glabrous |
|
(30) |
| |
|
|
|
| 30 (29) |
Disk hairy; leaves abaxially pubescent when immature. |
|
28 A. campbellii |
| + |
Disk glabrous; leaves glabrous or pilose |
|
(31) |
| |
|
|
|
| 31 (30) |
Leaves and petiole glabrous. |
|
31 A. elegantulum |
| + |
Leaf veins abaxially pilose, petiole pilose |
|
(32) |
| |
|
|
|
| 32 (31) |
Samara 2.5-2.7 cm, spreading nearly horizontally; leaves 3- or 5-lobed. |
|
34 A. miaoshanicum |
| + |
Samara 2.3-2.5 cm, usually spreading at obtuse angle; leaves 5-lobed |
|
(33) |
| |
|
|
|
| 33 (32) |
Leaf blade 10-12 × 11-14 cm, margin of lobe obtusely serrate; ovary, abaxial veins, and petiole velutinous. |
|
32 A. pubinerve |
| + |
Leaf blade 5-8 × 7-11 cm, margin of lobe acutely serrate; ovary, abaxial veins, and petiole villous. |
|
33 A. kweilinense |
|
