1 |
Petals imbricate, usually broadly ovate, obovate, or orbicular. |
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(2) |
+ |
Petals induplicate or valvate, oblong or ovate-oblong, rarely obovate. |
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(10) |
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2 (1) |
Filaments subulate, toothless or only inner ones dentate; petals white, rarely pink. |
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(3) |
+ |
Outer filaments dentate, inner ones variable, usually apex acuminate or 2-lobed; petals pink, rarely white. |
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(5) |
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3 (2) |
Plants glabrous, except bud scales and leaf blades sometimes stellate hairy adaxially |
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1 D. glabrata |
+ |
Plants ± stellate hairy. |
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(4) |
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4 (3) |
Leaf blade adaxially 5(or 6)-rayed stellate hairy, abaxially 6-12-rayed stellate hairy; filaments subulate, toothless or only inner 2 dentate; petals white |
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2 D. parviflora |
+ |
Leaf blade adaxially 4- or 5(or 6)-rayed stellate hairy, abaxially 5-8-rayed stellate hairy, central rays usually long; filaments subulate, toothless; petals pink |
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3 D. mollis |
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5 (2) |
Teeth of outer filaments subequaling or longer than anther stalks; inflorescences 5-15(-21)-flowered; stellate hairs of inflorescences and leaf blade veins without papilliform base. |
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(6) |
+ |
Teeth of outer filaments shorter than anther stalks; inflorescences 15-80-flowered; stellate hairs of inflorescences and leaf blade veins with papilliform base. |
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(8) |
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6 (5) |
Leaf blade abaxially glaucous, glabrous or 3-5-rayed stellate hairy; petals white or pinkish at apex; branchlets and inflorescences glabrous |
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4 D. hypoglauca |
+ |
Leaf blade abaxially greenish, 5- or 6(or 7)-rayed stellate hairy; petals pink; branchlets and inflorescences stellate hairy. |
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(7) |
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7 (6) |
Pedicel slender, 1-2 cm; inflorescences 5-10-flowered; leaf blade oblong or ovate-oblong, rarely lanceolate, apex acute; flowering branchlets usually 4-leaved |
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5 D. rubens |
+ |
Pedicel robust, 8-12 mm; inflorescences 11-21-flowered; leaf blade ovate-lanceolate or elliptic-lanceolate, apex acuminate; flowering branchlets usually 6-leaved |
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6 D. muliensis |
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8 (5) |
Outer anther stalks ca. 2 mm, ca. 1/2 as long as filaments; inner anther stalks borne between filament teeth |
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9 D. bomiensis |
+ |
Outer anther stalks 1-1.5 mm, less than 1/2 as long as filaments; inner anther stalks borne at middle of filaments abaxially. |
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(9) |
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9 (8) |
Leaf blade abaxially sparsely 6-8-rayed stellate hairy, hairs of 2 types (minute and larger ones) |
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7 D. compacta |
+ |
Leaf blade abaxially densely 8-10(-15)-rayed stellate hairy, hairs uniform |
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8 D. hookeriana |
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10 (1) |
Filaments all 2-dentate at apex, teeth not reaching anthers or, if longer, horizontal or recurved, falcate; anthers borne between filament teeth. |
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(11) |
+ |
Only outer filaments 2-dentate at apex, teeth ± level with or exceeding anthers, rarely shorter; inner filaments not 2-dentate at apex; anthers borne at middle or near apex of filaments abaxially. |
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(22) |
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11 (10) |
Flowering branchlets to 4 cm; inflorescences 1-3(-5)-flowered; filament teeth horizontal or recurved, falcate, exceeding anthers. |
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(12) |
+ |
Flowering branchlets more than 4 cm; inflorescences more than 5-flowered; filament teeth not reaching anthers. |
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(13) |
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12 (11) |
Leaf blade abaxially densely 7-11-rayed stellate hairy, indumentum continuous |
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20 D. grandiflora |
+ |
Leaf blade abaxially sparsely 5- or 6(or 7)-rayed stellate hairy, indumentum discontinuous |
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21 D. baroniana |
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13 (11) |
Inflorescences cymose; calyx lobes subequaling or longer than tube, rarely shorter. |
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(14) |
+ |
Inflorescences paniculate, racemose, or cymose paniculate; calyx lobes ca. 1/2 as long as calyx tube. |
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(15) |
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14 (13) |
Leaf blade abaxially greenish gray, elliptic-lanceolate or oblong-lanceolate, 5-10 × 2-3 cm; filament teeth acute at apex |
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18 D. discolor |
+ |
Leaf blade abaxially gray, ovate or elliptic-ovate, 3-5 × 1.5-2 cm; filaments teeth obtuse at apex |
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19 D. silvestrii |
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15 (13) |
Leaf blade adaxially 3- or 4-rayed stellate hairy, abaxially 4- or 5(or 6)-rayed stellate hairy. |
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(16) |
+ |
Leaf blade adaxially 4- or 5(-7)-rayed stellate hairy, abaxially 10-22-rayed stellate hairy, rarely glabrous on both surfaces or only abaxially sparsely stellate hairy. |
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(18) |
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16 (15) |
Inflorescences slender, racemose or narrowly paniculate, glabrous; calyx sparsely hairy; filaments 2-dentate at apex or outer ones toothless |
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10 D. gracilis |
+ |
Inflorescences robust, cymose paniculate, hairy; calyx densely hairy; filaments all 2-dentate at apex. |
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(17) |
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17 (16) |
Petiole less than 2 mm on flowering branchlets or almost absent; hairs on leaf blade veins with long central rays and papilliform base |
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11 D. faberi |
+ |
Petiole 2-4 mm on flowering branchlets; hairs on leaf blade veins with neither long central rays nor papilliform base |
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12 D. taiwanensis |
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18 (15) |
Flowering branchlets glabrous; leaf blade abaxially glabrous, or if hairy then rather sparsely so |
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13 D. glauca |
+ |
Flowering branchlets stellate hairy; leaf blade hairy on both surfaces, abaxially more densely so. |
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(19) |
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19 (18) |
Leaf blade abaxially grayish green, densely stellate hairy, indumentum continuous. |
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(20) |
+ |
Leaf blade abaxially green, sparsely stellate hairy, indumentum discontinuous. |
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(21) |
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20 (19) |
Petiole 5-15 mm on flowering branchlets; leaf blade adaxially 6-12-rayed stellate hairy; petals 10-12 mm; capsule 6-7 mm in diam. |
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14 D. pulchra |
+ |
Petiole 1-2 mm on flowering branchlets; leaf blade adaxially 4-7(or 8)-rayed stellate hairy; petals 5-8 mm; capsule 4-5 mm in diam. |
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15 D. ningpoensis |
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21 (19) |
Calyx yellowish brown stellate hairy; calyx tube ca. 2.5 × 2 mm, lobes ovate |
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16 D. crenata |
+ |
Calyx grayish green stellate hairy; calyx tube ca. 3 × 4 mm, lobes deltoid |
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17 D. schneideriana |
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22 (10) |
Capsule globose or subglobose, with persistent, incurved calyx lobes. |
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(23) |
+ |
Capsule hemispheric, rarely obconical or campanulate, with persistent, erect, rarely recurved calyx lobes. |
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(30) |
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23 (22) |
Leaf blade adaxially reticulate rugose when dry |
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44 D. crassifolia |
+ |
Leaf blade adaxially not rugose when dry. |
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(24) |
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24 (23) |
Leaf blade abaxially grayish, densely 8-16-rayed stellate hairy, indumentum continuous |
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45 D. multiradiata |
+ |
Leaf blade abaxially greenish or grayish green, sparsely 5-9(or 10)-rayed stellate hairy, indumentum discontinuous. |
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(25) |
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25 (24) |
Leaf blade glossy, leathery, margin thorny serrate |
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46 D. coriacea |
+ |
Leaf blade not glossy, papery or membranous, margin serrulate. |
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(26) |
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26 (25) |
Stellate hairs of branchlets and leaf blades with long central rays; calyx lobes ovate or ovate-lanceolate; petiole 1-3 mm |
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47 D. pilosa |
+ |
Stellate hairs of branchlets and leaf blades without long central rays, except those on leaf blade veins; calyx lobes deltoid or ovate deltoid; petiole 3-5 mm. |
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(27) |
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27 (26) |
Leaf blade narrowly lanceolate, 2.5-4.5 × 0.4-0.6(-1.2) cm, base rounded |
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48 D. esquirolii |
+ |
Leaf blade ovate, ovate-oblong, or -lanceolate, 3-7(-12) × 1.5-3 cm, base rounded or broadly cuneate. |
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(28) |
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28 (27) |
Stellate hairs of abaxial leaf surface with papilliform base |
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50 D. setchuenensis |
+ |
Stellate hairs of abaxial leaf surface without papilliform base. |
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(29) |
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29 (28) |
Leaf blade abaxially densely grayish green stellate hairy, reticulate veins conspicuously elevated; petals 3-4.5 mm |
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49 D. cinerascens |
+ |
Leaf blade abaxially sparsely yellow-green or greenish stellate hairy, reticulate veins inconspicuous; petals 5-12 mm |
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50 D. setchuenensis |
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30 (22) |
Calyx lobes shorter than tube. |
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(31) |
+ |
Calyx lobes subequaling or longer than tube. |
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(40) |
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31 (30) |
Inflorescences 3-5(-11)-flowered; leaf blade abaxially greenish, sparsely 5-8(-10)-rayed stellate hairy. |
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(32) |
+ |
Inflorescences 6-25-flowered; leaf blade abaxially grayish green, densely 8-14-rayed stellate hairy. |
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(33) |
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32 (31) |
Inflorescences corymbose cymes, pedicels 1-2 cm; teeth of outer filaments exceeding anthers |
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23 D. cymuligera |
+ |
Inflorescences cymes, pedicels 3-5 mm; teeth of outer filaments ± level with anthers |
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22 D. rehderiana |
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33 (31) |
Styles slightly longer than stamens; inner anthers borne near apex of filaments abaxially. |
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(34) |
+ |
Styles shorter than or subequaling stamens; inner anthers borne at middle of filaments abaxially, rarely between teeth. |
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(36) |
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34 (33) |
Petals pink; calyx tube 3.5-4 × 4-4.5 mm, lobes deltoid or broadly ovate; styles 4(or 5) |
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31 D. wardiana |
+ |
Petals white; calyx tube ca. 3 × 2.5 mm, lobes ovate or ovate-oblong; styles 3(or 4). |
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(35) |
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35 (34) |
Capsule hemispheric, persistent calyx lobes erect; margin of leaf blade regularly serrulate |
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29 D. staminea |
+ |
Capsule obconical or obcampanulate, persistent calyx lobes recurved; margin of leaf blade alternately coarsely serrate and serrulate |
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30 D. crassidentata |
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36 (33) |
Leaves dimorphic, suborbicular on basal flowering branchlets; petals 13-14 mm |
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28 D. heterophylla |
+ |
Leaves monomorphic, not suborbicular on basal flowering branchlets; petals 6-12 mm. |
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(37) |
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37 (36) |
Leaf blade subleathery; petals narrowly elliptic, obovate-oblong, or oblong, ca. 3 × as long as wide. |
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(38) |
+ |
Leaf blade papery; petals broadly elliptic or obovate, ca. 2 × as long as wide. |
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(39) |
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38 (37) |
Apex of outer filaments shouldered, subrounded, or 2-lobed with lobes not reaching anthers |
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24 D. obtusilobata |
+ |
Apex of outer filaments 2-dentate, teeth oblong, ± level with anthers |
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25 D. monbeigii |
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39 (37) |
Petals 10-12 × 5-6 mm; stellate hairs of leaf blade with long central rays |
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26 D. yunnanensis |
+ |
Petals ca. 8 × 4 mm; stellate hairs leaf of blade without long central rays |
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27 D. breviloba |
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40 (30) |
Styles shorter than inner stamens; petals 4.5-7 mm. |
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(41) |
+ |
Styles subequaling or longer than stamens; petals more than 7 mm. |
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(42) |
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41 (40) |
Leaf blade abaxially gray-white, densely stellate hairy, indumentum continuous; calyx lobes narrowly lanceolate, base less than 1 mm wide |
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32 D. albida |
+ |
Leaf blade abaxially greenish, sparsely stellate hairy, indumentum discontinuous; calyx lobes lanceolate, base ca. 1 mm wide |
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33 D. taibaiensis |
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42 (40) |
Stellate hairs of branchlets and inflorescences with papilliform base. |
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(43) |
+ |
Stellate hairs of branchlets and inflorescences without papilliform base. |
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(44) |
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43 (42) |
Leaf blade 3-10 × 1.5-3 cm, abaxially 5-9(-11)-rayed stellate hairy, indumentum discontinuous; calyx lobes subequaling tube, leathery |
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34 D. aspera |
+ |
Leaf blade 1-2.5 × 0.7-1.4 cm, abaxially densely stellate hairy, indumentum continuous; calyx lobes longer than tube, membranous |
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35 D. glaucophylla |
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44 (42) |
Leaf blade 2-5(-8) × 0.6-2 cm; inflorescences 3-4(-5) cm in diam. |
|
(45) |
+ |
Leaf blade (3-)5-12(-15) × (1-)1.5-3 cm; inflorescences 4.5-8 cm in diam. |
|
(46) |
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45 (44) |
Calyx lobes lanceolate, membranous; leaf blade abaxially greenish, indumentum discontinuous |
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36 D. glomeruliflora |
+ |
Calyx lobes subulate, subleathery; leaf blade abaxially grayish green, indumentum continuous |
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37 D. subulata |
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46 (44) |
Calyx lobes 5-8 mm, ca. 2 × as long as tube, membranous |
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43 D. calycosa |
+ |
Calyx lobes 2.5-5 mm, subequaling or slightly longer than tube, leathery. |
|
(47) |
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47 (46) |
Leaf blade papery or thinly leathery, abaxially sparsely stellate hairy. |
|
(48) |
+ |
Leaf blade leathery, abaxially densely stellate hairy. |
|
(49) |
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48 (47) |
Leaf blade oblong-lanceolate or lanceolate, adaxially 4-6-rayed stellate hairy, abaxially yellowish brown, 7-9(-13)-rayed stellate hairy, indumentum appressed |
|
41 D. nanchuanensis |
+ |
Leaf blade broadly ovate-lanceolate or ovate-oblong, adaxially 4- or 5-rayed stellate hairy, abaxially greenish, 4-8(-10)-rayed stellate hairy, indumentum not appressed |
|
42 D. purpurascens |
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49 (47) |
Leaf blade ovate; flowering branchlets 18-22 cm; petals white |
|
40 D. zhongdianensis |
+ |
Leaf blade lanceolate or elliptic-lanceolate; flowering branchlets 5-15 cm; petals purplish. |
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(50) |
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50 (49) |
Leaf blade adaxially 4-6(or 7)-rayed stellate hairy, abaxially 8-12-rayed stellate hairy, hairs along veins with long central rays |
|
38 D. longifolia |
+ |
Leaf blade adaxially 6-8-rayed stellate hairy, abaxially 12-16-rayed stellate hairy, hairs without long central rays |
|
39 D. squamosa |