| 1 |
Margin of petals brown crisped villous |
|
89 S. ciliatopetala |
| + |
Margin of petals glabrous. |
|
(2) |
| |
|
|
|
| 2 (1) |
Basal leaves absent at anthesis. |
|
(3) |
| + |
Basal leaves present at anthesis. |
|
(4) |
| |
|
|
|
| 3 (2) |
Inflorescence a compact cyme of several flowers |
|
91 S. congestiflora |
| + |
Inflorescence 1-flowered |
|
96 S. nangqenica |
| |
|
|
|
| 4 (2) |
Basal leaves brown crisped villous adaxially. |
|
(5) |
| + |
Basal leaves glabrous adaxially. |
|
(9) |
| |
|
|
|
| 5 (4) |
Petals purple, at least 1.2 cm |
|
95 S. bergenioides |
| + |
Petals yellow, to 1 cm. |
|
(6) |
| |
|
|
|
| 6 (5) |
Apex of basal leaves long aristate |
|
101 S. gongshanensis |
| + |
Apex of basal leaves obtuse to acute. |
|
(7) |
| |
|
|
|
| 7 (6) |
Sepals glabrous abaxially |
|
97 S. hirculoides |
| + |
Sepals pubescent abaxially. |
|
(8) |
| |
|
|
|
| 8 (7) |
Margin of sepals densely brown crisped villous |
|
86 S. sinomontana |
| + |
Margin of sepals glandular pilose |
|
87 S. isophylla |
| |
|
|
|
| 9 (4) |
Apex of basal leaves aristate, sometimes 3-aristate. |
|
(10) |
| + |
Apex of basal leaves obtuse or acute. |
|
(12) |
| |
|
|
|
| 10 (9) |
Petals 1.5-2.5 mm |
|
104 S. culcitosa |
| + |
Petals 4-6 mm. |
|
(11) |
| |
|
|
|
| 11 (10) |
Plants to 2 cm tall; apex of some basal leaves 3-aristate |
|
102 S. triaristulata |
| + |
Plants 4-9 cm tall; apex of basal leaves acute or 1-aristate |
|
79 S. aristulata |
| |
|
|
|
| 12 (9) |
Rosette leaves without a well-defined petiole, blade linear-oblong, to 1 mm wide |
|
103 S. saginoides |
| + |
Rosette leaves petiolate, blade narrowly elliptic to ovate or lanceolate, more than 1 mm wide. |
|
(13) |
| |
|
|
|
| 13 (12) |
Ovary with a conspicuous, annular nectary disc; petals purple abaxially, yellow adaxially. |
|
(14) |
| + |
Ovary without a conspicuous nectary disc; petals yellow on both surfaces. |
|
(16) |
| |
|
|
|
| 14 (13) |
Inflorescence 1-flowered |
|
94 S. tibetica |
| + |
Inflorescence 2- or more flowered. |
|
(15) |
| |
|
|
|
| 15 (14) |
Sepals erect at anthesis, later reflexed; inflorescence usually more than 8-flowered |
|
92 S. tangutica |
| + |
Sepals reflexed by anthesis; inflorescence 2-6-flowered |
|
93 S. przewalskii |
| |
|
|
|
| 16 (13) |
Margin of sepals glabrous or glandular pilose. |
|
(17) |
| + |
Margin of sepals brown crisped villous. |
|
(18) |
| |
|
|
|
| 17 (16) |
Margin of sepals densely glandular ciliate; petals to 6.4 mm |
|
100 S. parva |
| + |
Margin of sepals glabrous or sparsely glandular ciliate; petals more than 6 mm |
|
98 S. elliptica |
| |
|
|
|
| 18 (16) |
Sepals reflexed at anthesis |
|
88 S. hirculus |
| + |
Sepals erect to spreading at anthesis. |
|
(19) |
| |
|
|
|
| 19 (18) |
Petals abaxially and marginally brown crisped villous proximally |
|
99 S. montanella |
| + |
Petals abaxially and marginally glabrous. |
|
(20) |
| |
|
|
|
| 20 (19) |
Margin of sepals densely brown crisped villous; inflorescence often several flowered |
|
86 S. sinomontana |
| + |
Margin of sepals sparsely brown crisped villous; inflorescence often 1-flowered |
|
90 S. heleonastes |
