1 |
Outer involucral bracteoles abaxially pubescent with gland-tipped trichomes |
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(2) |
+ |
Outer involucral bracteoles abaxially glabrous or pubescent with non-glandular trichomes |
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(3) |
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2 (1) |
Corolla ca. 4.5 cm, pubescent with gland-tipped and non-glandular trichomes. |
|
1 P. lanceolaria |
+ |
Corolla ca. 1 cm, outside pubescent with non-glandular trichomes. |
|
2 P. paniculata |
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3 (1) |
Anther thecae superposed (i.e., one entirely above other and with a gap between them) |
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(4) |
+ |
Anther thecae inserted at same level or at different levels but overlapping |
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(5) |
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4 (3) |
Corolla ca. 1 cm; outer involucral bracteoles subulate to lanceolate to linear, less than 3 mm wide; capsule pubescent with non-glandular trichomes. |
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2 P. paniculata |
+ |
Corolla 3-3.4 cm; outer involucral bracteoles ovate to elliptic, more than 5 mm wide; capsule pubescent with gland-tipped and non-glandular trichomes. |
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10 P. japonica |
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5 (3) |
Anther thecae inserted at same level. |
|
3 P. yunnanensis |
+ |
Anther thecae inserted at different levels |
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(6) |
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6 (5) |
Outer involucral bracteoles less than 2 × as long as calyx |
|
(7) |
+ |
Outer involucral bracteoles more than 2 × as long as calyx |
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(8) |
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7 (6) |
Leaf blade subglabrous. |
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4 P. tianmuensis |
+ |
Leaf blade densely pubescent. |
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5 P. strigosa |
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|
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8 (6) |
Corolla and capsule glabrous. |
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6 P. montana |
+ |
Corolla and capsule pubescent |
|
(9) |
|
|
|
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9 (8) |
Leaf blade adaxially puberulent (especially along midvein) or becoming subglabrescent; corolla 3-5.7 cm. |
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7 P. bivalvis |
+ |
Leaf blade adaxially sparsely pubescent; corolla 2-4 cm |
|
(10) |
|
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|
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10 (9) |
Outer involucral bracteoles narrowly ovate to lanceolate, more than 4 × as long as wide. |
|
8 P. floribunda |
+ |
Outer involucral bracteoles ovate to oblong to elliptic, less than 3 × as long as wide |
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(11) |
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|
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11 (10) |
Outer involucral bracteoles ovate to oblong, abaxially slightly villous, base subcordate. |
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9 P. fera |
+ |
Outer involucral bracteoles ovate to elliptic, abaxially subglabrous to puberulent, base cuneate to truncate. |
|
10 P. japonica |