| 1 |
Sepals free, slightly united in Pseudostellaria |
|
(2) |
| + |
Sepals united, at least at the base |
|
(17) |
| |
|
|
|
| 2 (1) |
Leaves alternate |
|
16 Telephium |
| + |
Leaves opposite or spuriously whorled |
|
(3) |
| |
|
|
|
| 3 (2) |
Leaves stipulate |
|
(5) |
| + |
Leaves exstipulate |
|
(4) |
| |
|
|
|
| 4 (3) |
Leaves densely imbricate. Plants forming dense, compact cushions (found above 4400m) |
|
1 Thylacospermum |
| + |
Leaves not imbricate. Plants not as above |
|
(8) |
| |
|
|
|
| 5 (3) |
Stipules connate at the nodes |
|
13 Spergularia |
| + |
Stipules free |
|
(6) |
| |
|
|
|
| 6 (5) |
Sepals keeled |
|
15 Polycarpon |
| + |
Sepals not keeled |
|
(7) |
| |
|
|
|
| 7 (6) |
Axillary leaf fascicles present. Stamens 5-10. Seeds keeled or winged |
|
12 Spergula |
| + |
Axillary leaf fascicles absent. Stamens 5. Seeds neither keeled nor winged |
|
14 Polycarpaea |
| |
|
|
|
| 8 (4) |
Sepals 4, unequal. Leaves closely adpressed to the stem |
|
11 Bufonia |
| + |
Sepals 5(-4), equal. Leaves not as above |
|
(9) |
| |
|
|
|
| 9 (8) |
Flowers in umbels |
|
7 Holosteum |
| + |
Flowers solitary or in cymes |
|
(10) |
| |
|
|
|
| 10 (9) |
Capsule globose to ovoid, dehiscing by valves or teeth which are neither reflexed nevolute |
|
(11) |
| + |
Capsule cylindric, dehiscing by small teeth, often reflexed or revolute |
|
8 Cerastium |
| |
|
|
|
| 11 (10) |
Styles 4-5 |
|
(12) |
| + |
Styles 2-3 |
|
(13) |
| |
|
|
|
| 12 (11) |
Leaves lanceolate to spathulate. Styles 5. Capsule dehiscing by 5 bidentate teeth |
|
9 Myosoton |
| + |
Leaves linear. Styles 4-5. Capsule splitting by 4-5 valves |
|
10 Sagina |
| |
|
|
|
| 13 (11) |
Capsule membranous, splitting almost to the base by 2(-4) valves |
|
4 Lepyrodiclis |
| + |
Capsule not membranous, dehiscing by more than 2 valves or teeth |
|
(14) |
| |
|
|
|
| 14 (13) |
Capsule dehiscing by as many valves as styles (3) |
|
3 Minuartia |
| + |
Capsule dehiscing by twice as many teeth or valves as styles |
|
(15) |
| |
|
|
|
| 15 (14) |
Capsule teeth short, 6 in number |
|
2 Arenaria |
| + |
Capsule teeth usually ½ the capsule length, 4-6 in number |
|
(16) |
| |
|
|
|
| 16 (15) |
Napiform tubers present on the rhizome. Cleistogamic and chasmogamic flowers present. Sepals slightly united at the base |
|
6 Pseudostellaria |
| + |
Tubers absent. Only chasmogamic flowers present. Sepals free |
|
5 Stellaria |
| |
|
|
|
| 17 (1) |
Fruit a berry, indehiscent |
|
19 Cucubalus |
| + |
Fruit a capsule dehiscent |
|
(18) |
| |
|
|
|
| 18 (17) |
Styles 2. Carpophore usually absent |
|
(19) |
| + |
Styles 3-5. Carpophore usually present |
|
(25) |
| |
|
|
|
| 19 (18) |
Bracteoles present, adpressed to calyx |
|
25 Dianthus |
| + |
Bracteoles absent |
|
(20) |
| |
|
|
|
| 20 (19) |
Calyx with 5 broad wings |
|
23 Vaccaria |
| + |
Calyx without wings |
|
(21) |
| |
|
|
|
| 21 (20) |
Leaves acerose, often with a spiny apex. Bract spiny. Calyx often spiny tipped |
|
22 Acanthophyllum |
| + |
Leaves, bract and calyx not as above |
|
(22) |
| |
|
|
|
| 22 (21) |
Calyx ribs with hyaline intervals between them. Capsule dehiscing by valves |
|
(23) |
| + |
Calyx ribs without hyaline intervals between then. Capsule dehiscing by teeth |
|
(24) |
| |
|
|
|
| 23 (22) |
Seeds reniform to comma shaped with lateral hilum. Calyx mostly with druses |
|
20 Gypsophila |
| + |
Seeds peltate without facial hilum. Calyx without druses |
|
24 Petrorhagia |
| |
|
|
|
| 24 (22) |
Calyx long, narrowly cylindrical. Stems rigid, with dichotomous branches |
|
26 Velezia |
| + |
Calyx campanulate or cylindrical, never long and
narrow. Stems not branching as above |
|
(25) |
| |
|
|
|
| 25 (24) |
Styles 2. Capsule dehiscing by 4 valves or teeth |
|
21 Saponaria |
| + |
Styles 3-5. Capsule dehiscing by teeth, 5 or twice the number of styles |
|
(26) |
| |
|
|
|
| 26 (25) |
Styles 5. Capsule dehiscing by 10 teeth. Carpophore very reduced |
|
17 Lychnis |
| + |
Styles 3(-5). Capsule dehiscing by 6(-10) teeth. Carpophore prominent |
|
18 Silene |
