1 |
Most or all flowers with well-developed pedicels 2-6 mm; stipules triangular to broadly triangular, acute, cuspidate, or narrowly spatulate |
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(2) |
+ |
Flowers sessile to shortly pedicellate, with pedicels up to 2 mm; stipules variously shaped, generally triangular, spatulate, ovate, suborbicular, leaflike, or pandurate |
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(7) |
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2 (1) |
Shrubs or trees; petioles 0.5-1.5 cm; corolla lobes 1-2.5 mm; anthers 0.8-2 mm, subsessile or with filaments less than 1 mm |
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(3) |
+ |
Low shrubs or sometimes trees up to 12 m tall; petioles 0.1-0.6 cm; corolla lobes 3.5-8 mm; anthers 2-3.5 mm, exserted on filaments 4-6 mm (W. ser. Montigenae Cowan) |
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(5) |
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3 (2) |
Corolla with lobes ca. 1 mm, less than half as long as tube; anthers ca. 1 mm. |
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12 W. laxa |
+ |
Corolla with lobes 1.5-2.5 mm, half as long as tube to ± equal to tube; anthers 1.2-2 mm |
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(4) |
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4 (3) |
Leaves abaxially with secondary and higher order venation well marked; corolla white to yellow, with tube 1.5-4 mm. |
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8 W. formosana |
+ |
Leaves abaxially with secondary and higher order venation hardly visible; corolla purplish red, with tube 2.3-3 mm. |
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16 W. longipedicellata |
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5 (2) |
Shrubs or trees 1-12 m tall; leaves elliptic-oblong, oblong-lanceolate, oblanceolate, or elliptic, 3-14.5 cm, glabrous on both surfaces; stipules spatulate to lanceolate or leaflike (i.e., ovate and stipitate); Hainan. |
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18 W. merrilliana |
+ |
Leaves elliptic-lanceolate, lanceolate, narrowly lanceolate, ovate, or suborbicular, 0.8-3 cm, pubescent on one or both surfaces; stipules triangular, lanceolate-triangular, or ovate; mainland |
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(6) |
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6 (5) |
Leaves acute, shortly acuminate, or obtuse at apex, with secondary veins ca. 3 pairs, visible abaxially; calyx lobes linear-oblong, spatulate, or oblanceolate. |
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15 W. longidens |
+ |
Leaves obtuse at apex, veins not visible abaxially; calyx lobes triangular or lanceolate. |
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28 W. subalpina |
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7 (1) |
Stipules triangular, ovate, broadly triangular, or leaflike, at apex acute, cuspidate, ligulate, or aristate, erect or slightly spreading with age |
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(8) |
+ |
Stipules triangular, ovate, suborbicular, leaflike, or pandurate, with apex obtuse, rounded, shortly acuminate, 2-lobed, or ligulate and usually spreading to reflexed |
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(17) |
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8 (7) |
Leaves subsessile or shortly petiolate, petioles up to 3 mm |
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(9) |
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Leaves petiolate, petioles 3-25 mm |
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(10) |
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9 (8) |
Leaves opposite or ternate, ovate to ovate-lanceolate, 1.8-4 cm wide, drying papery, margins not thickened nor edged with a vein; stigma clavate. |
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22 W. pendula |
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Leaves opposite, narrowly elliptic to narrowly lanceolate, 0.4-1.2 cm wide, drying thinly leathery, marginally edged with a thickened vein; stigma deeply bilobed. |
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25 W. salicifolia |
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10 (8) |
Stipule apex prolonged, ligulate, 5-7 mm. |
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9 W. grandis |
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Stipule apex acute, cuspidate, or shortly acicular, 0.5-2 mm |
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(11) |
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11 (10) |
Calyx lobes narrowly triangular to linear, 1-1.2 mm, equal or unequal on an individual flower with at least one of lobes longer than 1 mm |
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(12) |
+ |
Calyx lobes lanceolate, triangular, or spatulate, 0.3-1.2 mm, equal or subequal |
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(13) |
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12 (11) |
Petioles 0.8-1.2 cm; stipules ca. 5 mm; corolla lobes ca. 1 mm. |
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6 W. cavaleriei |
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Petioles 0.8-1.5 cm; stipules 2-3 mm; corolla lobes 1.5-2.2 mm. |
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13 W. ligustrina |
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13 (11) |
Leaves strigillose to puberulent on both surfaces; corolla tube 8.5-11 mm. |
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1 W. aberrans |
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Leaves strigillose, puberulent, tomentulose, villous, or glabrescent on both surfaces; corolla tube 1.5-4 mm |
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(14) |
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14 (13) |
Calyx lobes 0.3-0.5 mm. |
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8 W. formosana |
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Calyx lobes 0.8-1 mm |
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(15) |
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15 (14) |
Inflorescences smaller, 5-6 × 3-6 cm; calyx glabrous or sparsely villosulous; leaves sparsely pubescent to glabrous abaxially. |
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4 W. brevipaniculata |
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Inflorescences larger, 9-17 × 6-22 cm; calyx glabrous to densely pilosulous, hirtellous, or villosulous; leaves glabrous to strigillose, tomentose, or villous abaxially |
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(16) |
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16 (15) |
Inflorescences 9-17 × 9-22 cm; corolla outside with tubes and lobes variously glabrous, strigillose, and/or villosulous (including glabrous on tube and densely villosulous on lobes in subsp. affinis). |
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29 W. tinctoria |
+ |
Inflorescences 9-12 × 6-11 cm; corolla outside glabrous on tube and densely villosulous or hirtellous on lobes. |
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31 W. villosa |
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17 (7) |
Anthers linear-lanceolate, 1.3-2 mm, exserted from corolla on developed filaments; corolla 7-9.4 mm; capsule 2.5-3 mm in diam. (W. ser. Euexsertae Cowan p.p., W. subser. Orbiculares Cowan). |
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27 W. speciosa |
+ |
Anthers lanceolate or elliptic, 0.5-1.7 mm, partially included, sessile or with filaments less than 1 mm; corolla 2-13.5 mm; capsule 1-2.5 mm in diam. (fruit unknown in W. augustinii, W. erythroxylon, W. myriantha, W. parviflora, W. pubigera) (W. ser. Wendlandia p.p., W. subser. Paniculatae Cowan) |
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(18) |
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18 (17) |
Leaves abaxially densely strigose or sericeous along midrib; inflorescences smaller, 4-10.5 × 3-10 cm; corolla 11.5-13.5 mm, red or purple; capsule 2-2.5 mm in diam. |
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3 W. bouvardioides |
+ |
Leaves abaxially glabrous, glabrescent, or sparsely to densely strigillose, puberulent, pilosulous, tomentose, hispidulous, or hirtellous; inflorescences often larger, 4-30 × 4-25 cm; corolla 2-6 mm, white, pale green, pale yellow, or yellowish green; capsule 1-2 mm in diam. (unknown in W. augustinii, W. erythroxylon, W. myriantha, W. parviflora, W. pubigera) |
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(19) |
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19 (18) |
Corolla tube 1-1.5 mm, with lobes equal to, longer than, or sometimes slightly shorter than tube; leaves 5-17 × 2-8.5 cm |
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(20) |
+ |
Corolla tube 2-5 mm, with lobes clearly shorter than tube; leaves 3-26 × 1.5-14 cm |
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(21) |
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20 (19) |
Leaves glabrescent or sparsely strigillose to pilosulous abaxially; Guangdong, Guangxi. |
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5 W. brevituba |
+ |
Leaves densely ferruginous pubescent abaxially; Yunnan. |
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21 W. parviflora |
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21 (19) |
Leaves drying leathery, abaxially with secondary veins plane and tertiary venation hardly or not visible |
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(22) |
+ |
Leaves drying papery to leathery, abaxially with secondary veins raised and tertiary venation easily visible and usually also raised (i.e., most common condition) |
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(23) |
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22 (21) |
Calyx densely hirtellous. |
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14 W. litseifolia |
+ |
Calyx glabrous to sparsely strigillose. |
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20 W. oligantha |
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23 (21) |
Calyx glabrous to sparsely puberulent, with lobes 1.2-2 mm, entire to ciliate |
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(24) |
+ |
Calyx with hypanthium portion and limb glabrous, glabrescent, or pilosulous, puberulent, tomentose, hirtellous, pilose, strigose, or strigillose, with lobes 0.3-1 mm |
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(26) |
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24 (23) |
Calyx lobes 1.2-2 mm; corolla tube 2-3.5 mm; Guangdong, Hainan. |
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10 W. guangdongensis |
+ |
Calyx lobes 1.2-1.5 mm; corolla tube 2.5-4 mm; Guangxi, Taiwan |
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(25) |
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25 (24) |
Leaves entire or scabrous to denticulate marginally; stipules entire; Taiwan. |
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7 W. erythroxylon |
+ |
Leaves entire, smooth or ciliolate marginally; stipules entire or 2-lobed; Guangxi. |
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19 W. myriantha |
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26 (23) |
Leaves abaxially moderately to densely hirtellous, strigillose, pilosulous, pilose, or strigose with pubescence on lamina spreading and/or partly obscuring its surface |
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(27) |
+ |
Leaves abaxially glabrous to sparsely strigillose or hispidulous on lamina and strigillose to moderately hispidulous or hirtellous on principal veins |
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(28) |
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27 (26) |
Leaves scaberulous on lamina adaxially; stipules usually equal to or only slightly wider than stem; corolla inside with short trichomes confined to lower to upper part of tube; Yunnan. |
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26 W. scabra |
+ |
Leaves sparsely hirtellous, hispidulous or scaberulous adaxially; stipules usually twice or more as wide as stem; corolla hirsute inside upper part of tube and throat. |
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30 W. uvariifolia |
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28 (26) |
Leaves abaxially glabrous on lamina and sparsely strigillose and/or hirtellous on principal veins; Taiwan. |
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17 W. luzoniensis |
+ |
Leaves abaxially glabrous to hispidulous or strigillose; mainland |
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(29) |
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29 (28) |
Stipules with apex ligulate, obtuse, often longitudinally folded. |
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9 W. grandis |
+ |
Stipules with apex oblanceolate to suborbicular, folded to usually flat |
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(30) |
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30 (29) |
Corolla tube 4-5 mm; Yunnan |
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(31) |
+ |
Corolla tube 2-3 mm |
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(32) |
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31 (30) |
Stipules with apical portion 3-4 mm wide; leaves with secondary veins 7-9 pairs. |
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2 W. augustinii |
+ |
Stipules with apical part broad, ca. 10 mm wide; leaves with secondary veins 7-13 pairs. |
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23 W. pingpienensis |
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32 (30) |
Leaves smaller, 7-10.5 × 2-4 cm, abaxially glabrous on lamina and sparsely pubescent only on veins; secondary veins 7 or 8 pairs; Yunnan. |
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11 W. jingdongensis |
+ |
Leaves larger, 14.5-18 × 6-7 cm, abaxially glabrous to sparsely pubescent on lamina with pubescence denser along veins; secondary veins 10 or 11 pairs; Guangxi. |
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24 W. pubigera |
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