Page 14 - 《广西植物》2020年增刊
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1 0                                   广  西  植  物                                         40 卷

     3. Sepal spur nearly as long as sepals or longer than them.

       16. Seeds subtetrahedralꎬ along longitudinal edges narrow ̄wingedꎻ leaf blades 3 ̄partedꎬ rarely 3 ̄sectꎻ
           staminode limbs 2 ̄lobedꎻ carpels 3.
         17. Leaf blades 3 ̄partedꎻ staminode limbs 2 ̄lobedꎻ carpels 3.
           18. Sepal spur nearly as long as sepalsꎻ pedicels lacking glandular hirs.
             19. Sepals lanceolateꎬ at apex long attenuateꎻ racemes simpleꎬ 20-25 cm long 
                         37. D. zhanangense

             19. Sepals not lanceolateꎬ at apex not attenuate.
               20. Racemes compoundꎻ sepals 18-20 mm longꎬ spur 19 mm long 
                            35. D. stapeliosum


               20. Racemes simple.
                 21. Bracteoles narrow ̄oblong or spathulate ̄oblongꎬ 9 - 11 mm longꎻ ovaries puberulousꎻ
                      sepals 12-14 mm long      32. D. subspathulatum

                 21. Bracteoles lanceolate ̄linearꎬ 3-6 mm longꎻ carpels glabrousꎻ sepals 14-17 mm long
                             33. D. crassifolium

           18. Sepal spur longer than sepals.
             22. Stems with glandular hairsꎻ staminode limbs yellow ̄barbate.
               23. Leaf blades 3 ̄lobed to the middle of bladeꎬ on both surfaces pubescent and glandular ̄pu ̄
                    berulousꎻ racemes 8 ̄floweredꎻ sepals 11-14 mm long   36. D. nangziense


               23. Leaf blades 3 ̄parted exceeding the middle of bladeꎬ on both surfaces sparsely puberulousꎬ lac ̄
                    king glandular hairsꎻ racemes 15-20 ̄floweredꎻ sepals 18-19 mm long    38. D. hillcoatiae
                 24. Sepal spur 20-25 mm longꎻ carpels glabrous    38a. var. hillcoatiae

                 24. Sepal spur 15-17 mm longꎻ ovaries pubescent   38b. var. pilocarpum
             22. Stems lacking glandular hairsꎻ staminode limbs white ̄barbateꎻ leaf blades 3 ̄lobedꎻ sepals
                  12 mm long       34. D. kansuense
               25. Raceme rachis and pedicels appressed ̄puberulous   34a. var. kansuense
               25. Raceme rachis and pedicels spreading ̄puberulous   34b. var. villosiusculum

         17. Leaf blades 3 ̄sectꎻ staminode limbs suborbicularꎬ undividedꎻ carpls 4-5ꎻ sepals 12 mm longꎬ
             spur 22 mm long       39. D. motingshanicum

       16. Seeds narrow ̄ellipsoidalꎬ1.8 mm longꎬ peripherally with a narrow wing 0.4-0.8 mm broadꎻ leaf
           blades 3 ̄sectꎻ staminode limbs orbicular ̄flabellate undivided    40. D. menyuanense
   2. Sepals deciduousꎬ rarely persistentꎬ mostly smallerꎬ not veinousꎬ not densely hairyꎻ upper sepal nearly as
      long as spur.

     26. Leaf blades 3 ̄parted.
       27. Bracteoles navicular      87. D. naviculare
         28. Stems hirsuteꎻ pedicelsꎬ sepals and carpels glabrous   87a. var. naviculare

         28. Stemsꎬ pedicels and sepals abaxially yellow ̄glandular ̄puberulousꎻ ovaries puberulous 
                     87b. var. lasiocarpum
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