1 |
Flowering precocious; catkin sessile or subsessile or, if peduncle 1-2 cm, then leaflets absent. |
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(2) |
+ |
Flowering coetaneous or slightly serotinous; peduncle more than 1 cm, with leaflets; young leaves moderately large at anthesis. |
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(5) |
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2 (1) |
Catkin more than 1 cm thick. |
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(3) |
+ |
Catkin less than 1 cm thick. |
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(4) |
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3 (2) |
Bracts with long hairs only abaxially, submembranous, apex truncate, dentate, 3-veined |
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164 Salix sikkimensis |
+ |
Bracts with long hairs on both surfaces, not submembranous, apex rounded, entire, with obscure veins |
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157 Salix argyrophegga |
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4 (2) |
Style deeply lobed, ca. as long as ovary; young leaf blade obovate to obovate-oblong, rarely oblanceolate, abaxially comose along midvein |
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155 Salix spodiophylla |
+ |
Style 2-lobed, ca. 1/2 as long as ovary; young leaf blade elliptic, rarely broadest above middle, abaxially tomentose |
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156 Salix balfouriana |
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5 (1) |
Style ca. as long as ovary, lobed to at least middle, deeply lobed to completely divided. |
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(6) |
+ |
Style 1/3-1/2 as long as ovary, completely divided to 2-cleft, rarely shallowly lobed. |
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(13) |
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6 (5) |
Young leaf blade lanceolate. |
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(7) |
+ |
Young leaf blade not lanceolate. |
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(8) |
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7 (6) |
Catkin and leaves opposite |
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158 Salix salwinensis |
+ |
Catkin and leaves alternate |
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159 Salix psilostigma |
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8 (6) |
Style twisted; stigma filamentous. |
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(9) |
+ |
Style not twisted; stigma not filamentous. |
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(10) |
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9 (8) |
Stigma usually curled; flowering coetaneous; young leaf blade elliptic or narrowly elliptic, rarely obovate-oblong |
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149 Salix ernestii |
+ |
Stigma not curled; flowering serotinous; young leaf blade obovate-oblong or narrowly obovate-elliptic, rarely elliptic |
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154 Salix spathulifolia |
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10 (8) |
Leaf blade obovate or oblong-obovate; bracts obtuse-rounded at apex, not dentate |
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167 Salix fengiana |
+ |
Leaf blade obovate-elliptic, narrowly elliptic, or narrowly ovate; bracts often truncate at apex, ± denticulate. |
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(11) |
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11 (10) |
Style completely divided, divergent; stigma short, 2-lobed or not; catkin more than 1.3 cm thick |
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166 Salix bistyla |
+ |
Style deeply lobed to shallowly lobed; stigma long, usually lobed; catkin less than 1 cm thick. |
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(12) |
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12 (11) |
Style shallowly lobed; catkin 6-8 cm |
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148 Salix fargesii |
+ |
Style deeply lobed; catkin less than 5.5 cm |
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162 Salix divergentistyla |
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13 (5) |
Young leaf blade lanceolate to elliptic-oblong or narrowly elliptic, abaxially sericeous, shiny, margin often entire. |
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(14) |
+ |
Young leaf blade ovate-lanceolate, elliptic to broadly elliptic, tomentose or villous abaxially, margin serrate or sinuous-crenate or, if leaf blade obovate-elliptic to obovate-lanceolate, then margin entire or inconspicuously remotely glandular dentate. |
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(16) |
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14 (13) |
Catkin more than 7 cm; young leaf apex acuminate to acute |
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153 Salix phaidima |
+ |
Catkin 3-6 cm; young leaf apex acute. |
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(15) |
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15 (14) |
Style completely divided; bracts obovate-deltoid, white villous on both surfaces or only abaxially, margin entire, apex truncate to rounded-truncate; young leaf blade abaxially white sericeous, cuneate at base |
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160 Salix daliensis |
+ |
Style 2-cleft, sometimes to more than 1/2 length of ovary; bracts spatulate-oblong, adaxially glabrous, margin sometimes crenate or with 2 nicked teeth, apex obtuse or subtruncate; young leaf blade abaxially lead gray sericeous, rounded at base |
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163 Salix daltoniana |
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16 (13) |
Catkin long and slender, more than 6 cm, to more than 10 cm in fruit; mature leaves large, more than 7 cm, abaxially white tomentose. |
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(17) |
+ |
Catkin 4-6 cm, to 10 cm in fruit; mature leaves less than 7(-9) cm, abaxially subglabrous. |
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(18) |
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17 (16) |
Bracts with 3 or 4 conspicuous, glandular teeth at apex; young leaf blade entire or irregularly sinuolate-crenate at margin, oblong-elliptic to ovate-lanceolate and crenate in fruit |
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152 Salix phanera |
+ |
Bracts entire at apex; young leaf blade gland-tipped or dentate only distally, elliptic to broadly elliptic and serrate in fruit |
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157 Salix argyrophegga |
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18 (16) |
Ovary shortly stipitate |
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165 Salix nujiangensis |
+ |
Ovary sessile. |
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(19) |
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19 (18) |
Catkin ca. 5 cm; bracts ovate or oblong |
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151 Salix plocotricha |
+ |
Catkin ca. 3.5 cm; bracts obovate |
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150 Salix eriostachya |
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