| 1 |
Calyx calyptrate |
|
(2) |
| + |
Calyx lobes distinct |
|
(3) |
| |
|
|
|
| 2 (1) |
Leaf blade oblong to elliptic, secondary veins 8 or 9 on each side of midvein; inflorescences axillary. |
|
2 S. nervosum |
| + |
Leaf blade ovate to obovate, secondary veins 2-5 on each side of midvein; inflorescences terminal. |
|
3 S. conspersipunctatum |
| |
|
|
|
| 3 (1) |
Petals coherent, falling as a cap at anthesis |
|
(4) |
| + |
Petals distinct |
|
(52) |
| |
|
|
|
| 4 (3) |
Inflorescences axillary or lateral below leaves |
|
(5) |
| + |
Inflorescences terminal |
|
(25) |
| |
|
|
|
| 5 (4) |
Branchlets quadrate or quadrangular |
|
(6) |
| + |
Branchlets terete or compressed |
|
(14) |
| |
|
|
|
| 6 (5) |
Hypanthium clavate |
|
(7) |
| + |
Hypanthium obconic or pyriform, not clavate |
|
(9) |
| |
|
|
|
| 7 (6) |
Hypanthium ca. 2 cm. |
|
15 S. taiwanicum |
| + |
Hypanthium to 1.2 cm |
|
(8) |
| |
|
|
|
| 8 (7) |
Branchlets grayish white when dry; petiole 2-3 mm. |
|
16 S. championii |
| + |
Branchlets blackish brown when dry; petiole 9-14 mm. |
|
42 S. rockii |
| |
|
|
|
| 9 (6) |
Branchlets gray or grayish white when dry |
|
(10) |
| + |
Branchlets blackish brown or dark brown when dry |
|
(12) |
| |
|
|
|
| 10 (9) |
Leaf blade narrowly elliptic. |
|
29 S. salwinense |
| + |
Leaf blade elliptic, obovate, obovate-elliptic, or oblong |
|
(11) |
| |
|
|
|
| 11 (10) |
Leaf blade 12-18 cm. |
|
25 S. tetragonum |
| + |
Leaf blade 4.5-6 cm. |
|
72 S. formosanum |
| |
|
|
|
| 12 (9) |
Petiole 3-6 mm. |
|
30 S. sterrophyllum |
| + |
Petiole 10-18 mm |
|
(13) |
| |
|
|
|
| 13 (12) |
Flower buds ca. 5 mm; calyx lobes inconspicuous. |
|
31 S. forrestii |
| + |
Flower buds 8-9 mm; calyx lobes 1-1.5 mm. |
|
42 S. rockii |
| |
|
|
|
| 14 (5) |
Hypanthium clavate or shortly clavate |
|
(15) |
| + |
Hypanthium obconic, long pyriform, or campanulate, not clavate |
|
(18) |
| |
|
|
|
| 15 (14) |
Style 15-20 mm. |
|
21 S. claviflorum |
| + |
Style 3-5 mm |
|
(16) |
| |
|
|
|
| 16 (15) |
Leaf blade intramarginal veins 3-4 mm from margin; hypanthium 6-8 mm. |
|
20 S. baviense |
| + |
Leaf blade intramarginal veins near margin; hypanthium 10-12 mm |
|
(17) |
| |
|
|
|
| 17 (16) |
Leaf blade secondary veins at an angle of ca. 75° from midvein, apex acute. |
|
18 S. rysopodum |
| + |
Leaf blade secondary veins at an angle of ca. 40° from midvein, apex acuminate. |
|
19 S. stenocladum |
| |
|
|
|
| 18 (14) |
Leaf blade intramarginal veins 2-3 mm from margin |
|
(19) |
| + |
Leaf blade intramarginal veins usually 1(-1.5) mm or less from margin |
|
(20) |
| |
|
|
|
| 19 (18) |
Branchlets grayish white when dry; secondary veins 11-13 on each side of midvein. |
|
27 S. balsameum |
| + |
Branchlets light brown when dry; secondary veins 8 or 9 on each side of midvein. |
|
46 S. simile |
| |
|
|
|
| 20 (18) |
Petiole 3-5 mm; stamens 7-8 mm. |
|
50 S. kwangtungense |
| + |
Petiole 7-20 mm; stamens 3-6 mm |
|
(21) |
| |
|
|
|
| 21 (20) |
Branchlets grayish white or gray when dry |
|
(22) |
| + |
Branchlets dark brown, blackish brown, red, or brown when dry |
|
(23) |
| |
|
|
|
| 22 (21) |
Leaf blade 6-12 cm. |
|
57 S. cumini |
| + |
Leaf blade 4.5-6 cm. |
|
72 S. formosanum |
| |
|
|
|
| 23 (21) |
Leaf oil glands sparse. |
|
31 S. forrestii |
| + |
Leaf oil glands numerous |
|
(24) |
| |
|
|
|
| 24 (23) |
Leaf blade 4-7 × 2.4-3.5 cm. |
|
56 S. rehderianum |
| + |
Leaf blade 9-12 × 4-6 cm. |
|
76 S. oblatum |
| |
|
|
|
| 25 (4) |
Hypanthium clavate |
|
(26) |
| + |
Hypanthium obconic, funnel-shaped, or campanulate |
|
(30) |
| |
|
|
|
| 26 (25) |
Leaf blade secondary veins 6-10 mm apart. |
|
11 S. austroyunnanense |
| + |
Leaf blade secondary veins to 3 mm apart |
|
(27) |
| |
|
|
|
| 27 (26) |
Branchlets terete or compressed |
|
(28) |
| + |
Branchlets quadrate or quadrangular |
|
(29) |
| |
|
|
|
| 28 (27) |
Leaf blade secondary veins at an angle of ca. 75° from midvein; branchlets brown when dry |
|
18 S. rysopodum |
| + |
Leaf blade secondary veins at an angle of ca. 40° from midvein; branchlets grayish white when dry. |
|
19 S. stenocladum |
| |
|
|
|
| 29 (27) |
Petiole 2-3 mm; branchlets grayish white when dry; leaf blade adaxially dull when dry. |
|
16 S. championii |
| + |
Petiole ca. 10 mm; branchlets blackish brown when dry; leaf blade adaxially glossy when dry. |
|
42 S. rockii |
| |
|
|
|
| 30 (25) |
Branchlets quadrate or 4-angled or quadrangular |
|
(31) |
| + |
Branchlets terete or compressed |
|
(35) |
| |
|
|
|
| 31 (30) |
Leaf blade secondary veins 6-10 mm apart. |
|
11 S. austroyunnanense |
| + |
Leaf blade secondary veins to 3 mm apart |
|
(32) |
| |
|
|
|
| 32 (31) |
Petiole ca. 10 mm; leaf blade elliptic to obovate |
|
(33) |
| + |
Petiole to 5 mm; leaf blade ovate-lanceolate, linear, or narrowly oblong |
|
(34) |
| |
|
|
|
| 33 (32) |
Branchlets blackish brown when dry; leaf blade 8-10 cm. |
|
42 S. rockii |
| + |
Branchlets grayish white when dry; leaf blade 5-6 cm. |
|
68 S. euphlebium |
| |
|
|
|
| 34 (32) |
Leaf blade ovate-lanceolate, base slightly cordate. |
|
32 S. tephrodes |
| + |
Leaf blade linear to narrowly oblong, base rounded to slightly obtuse. |
|
36 S. tsoongii |
| |
|
|
|
| 35 (30) |
Leaf blade base rounded to slightly cordate. |
|
51 S. bullockii |
| + |
Leaf blade base cuneate, obtuse, or attenuate |
|
(36) |
| |
|
|
|
| 36 (35) |
Petiole to 5 mm |
|
(37) |
| + |
Petiole more than 5 mm |
|
(44) |
| |
|
|
|
| 37 (36) |
Leaf blade apex obtuse to rounded |
|
(38) |
| + |
Leaf blade apex acute, acuminate, or caudate-acuminate |
|
(41) |
| |
|
|
|
| 38 (37) |
Stamens 4-8 mm |
|
(39) |
| + |
Stamens to 3 mm |
|
(40) |
| |
|
|
|
| 39 (38) |
Leaf blade elliptic to narrowly elliptic, 5-8 cm, base broadly cuneate to obtuse. |
|
50 S. kwangtungense |
| + |
Leaf blade elliptic to obovate-oblong, 3-5 cm, base cuneate. |
|
52 S. paucivenium |
| |
|
|
|
| 40 (38) |
Leaf blade secondary veins 6-9 mm apart. |
|
23 S. cinereum |
| + |
Leaf blade secondary veins to 3 mm apart. |
|
70 S. howii |
| |
|
|
|
| 41 (37) |
Leaf blade secondary veins at an angle of 40°-45° from midvein |
|
(42) |
| + |
Leaf blade secondary veins at an angle of more than 50° from midvein |
|
(43) |
| |
|
|
|
| 42 (41) |
Leaf blade 3-7 cm, abaxially olive green when dry. |
|
47 S. odoratum |
| + |
Leaf blade 8-12 cm, abaxially pale brown when dry. |
|
55 S. myrsinifolium |
| |
|
|
|
| 43 (41) |
Hypanthium ca. 3 mm; petals 2-3 mm. |
|
50 S. kwangtungense |
| + |
Hypanthium 4-5 mm; petals ca. 5 mm. |
|
76 S. oblatum |
| |
|
|
|
| 44 (36) |
Leaf blade secondary veins at an angle of 40°-45° from midvein |
|
(45) |
| + |
Leaf blade secondary veins at ca. 60° or more from midvein |
|
(46) |
| |
|
|
|
| 45 (44) |
Leaf blade secondary veins 6-9 mm apart; hypanthium ca. 3.5 mm. |
|
23 S. cinereum |
| + |
Leaf blade secondary veins ca. 1.5 mm apart; hypanthium 4-7 mm. |
|
55 S. myrsinifolium |
| |
|
|
|
| 46 (44) |
Leaf blade apex usually obtuse to slightly acuminate |
|
(47) |
| + |
Leaf blade apex acuminate |
|
(48) |
| |
|
|
|
| 47 (46) |
Petiole 1.5-2 cm; leaf blade 6-8 cm. |
|
54 S. densinervium var. insulare |
| + |
Petiole 0.8-1.2 cm; leaf blade 4.5-6 cm. |
|
72 S. formosanum |
| |
|
|
|
| 48 (46) |
Hypanthium ca. 2 mm; secondary veins less than 1 mm apart. |
|
49 S. chunianum |
| + |
Hypanthium 3-5 mm; secondary veins more than 2 mm apart |
|
(49) |
| |
|
|
|
| 49 (48) |
Leaf blade 5-6 cm. |
|
68 S. euphlebium |
| + |
Leaf blade 9-14 cm |
|
(50) |
| |
|
|
|
| 50 (49) |
Leaf blade base rounded to broadly cuneate. |
|
76 S. oblatum |
| + |
Leaf blade base cuneate |
|
(51) |
| |
|
|
|
| 51 (50) |
Leaf blade oblong to ovate-lanceolate, abaxially dark brown when dry. |
|
45 S. kusukusense |
| + |
Leaf blade elliptic, abaxially green when dry. |
|
53 S. toddalioides |
| |
|
|
|
| 52 (3) |
Inflorescences axillary or lateral below leaves |
|
(53) |
| + |
Inflorescences terminal or subterminal |
|
(83) |
| |
|
|
|
| 53 (52) |
Branchlets quadrate or quadrangular |
|
(54) |
| + |
Branchlets terete or compressed |
|
(60) |
| |
|
|
|
| 54 (53) |
Hypanthium clavate, 1.3-2 cm |
|
(55) |
| + |
Hypanthium not clavate, less than 0.8 cm |
|
(56) |
| |
|
|
|
| 55 (54) |
Petiole 4-5 mm; leaf blade base broadly cuneate; hypanthium ca. 2 cm. |
|
15 S. taiwanicum |
| + |
Petiole very short (leaves sometimes nearly sessile); leaf blade base usually slightly cordate; hypanthium ca. 1.3 cm. |
|
17 S. boisianum |
| |
|
|
|
| 56 (54) |
Petiole to 5 mm |
|
(57) |
| + |
Petiole more than 7 mm |
|
(58) |
| |
|
|
|
| 57 (56) |
Leaf blade apex acuminate. |
|
34 S. tenuirhachis |
| + |
Leaf blade apex obtuse to slightly acute. |
|
38 S. grijsii |
| |
|
|
|
| 58 (56) |
Leaf blade secondary veins 8-10 mm apart, apex slightly acute. |
|
13 S. cathayense |
| + |
Leaf blade secondary veins 2-3 mm apart or dense, apex acuminate |
|
(59) |
| |
|
|
|
| 59 (58) |
Flower buds ca. 5 mm. |
|
31 S. forrestii |
| + |
Flower buds 8-9 mm. |
|
42 S. rockii |
| |
|
|
|
| 60 (53) |
Leaf blade apex obtuse, rounded, or acute |
|
(61) |
| + |
Leaf blade apex acuminate |
|
(69) |
| |
|
|
|
| 61 (60) |
Leaf blade secondary veins more than 6 mm apart |
|
(62) |
| + |
Leaf blade secondary veins to 5 mm apart |
|
(65) |
| |
|
|
|
| 62 (61) |
Style 4-5 mm. |
|
28 S. xizangense |
| + |
Style 15-30 mm |
|
(63) |
| |
|
|
|
| 63 (62) |
Leaf blade secondary veins 8-12 on each side of midvein. |
|
5 S. polypetaloideum |
| + |
Leaf blade secondary veins 14-25 on each side of midvein |
|
(64) |
| |
|
|
|
| 64 (63) |
Petals 10-13 mm. |
|
6 S. samarangense |
| + |
Petals ca. 3 mm. |
|
21 S. claviflorum |
| |
|
|
|
| 65 (61) |
Petiole 9-14 mm |
|
(66) |
| + |
Petiole to 7 mm |
|
(67) |
| |
|
|
|
| 66 (65) |
Hypanthium broadly obconic, ca. 1 cm; stamens 10-13 mm. |
|
12 S. malaccense |
| + |
Hypanthium clavate, 1-1.2 cm; stamens 1-4 mm. |
|
18 S. rysopodum |
| |
|
|
|
| 67 (65) |
Petals ca. 1 mm; hypanthium ca. 1.5 mm. |
|
61 S. hancei |
| + |
Petals 2.5-4 mm; hypanthium 3-3.5 mm |
|
(68) |
| |
|
|
|
| 68 (67) |
Petiole ca. 2 mm; leaf blade linear-lanceolate. |
|
59 S. fluviatile |
| + |
Petiole 5-7 mm; leaf blade elliptic to ovate-elliptic. |
|
74 S. levinei |
| |
|
|
|
| 69 (60) |
Petals 8-15 mm |
|
(70) |
| + |
Petals 1-6 mm |
|
(73) |
| |
|
|
|
| 70 (69) |
Hypanthium clavate. |
|
19 S. stenocladum |
| + |
Hypanthium obconic |
|
(71) |
| |
|
|
|
| 71 (70) |
Stamens ca. 0.6 cm. |
|
31 S. forrestii |
| + |
Stamens 1.5-2.8 cm |
|
(72) |
| |
|
|
|
| 72 (71) |
Calyx lobes 5-8 mm; secondary veins 8-25 on each side of midvein. |
|
4 S. jambos |
| + |
Calyx lobes ca. 3 mm; secondary veins 8-12 on each side of midvein. |
|
5 S. polypetaloideum |
| |
|
|
|
| 73 (69) |
Hypanthium clavate or shortly clavate |
|
(74) |
| + |
Hypanthium obconic, turbinate, semiglobose, or broadly funnel-shaped |
|
(76) |
| |
|
|
|
| 74 (73) |
Leaf blade 1-1.5 cm wide; hypanthium ca. 7 mm. |
|
64 S. araiocladum |
| + |
Leaf blade 2-8 cm wide; hypanthium 8-15 mm |
|
(75) |
| |
|
|
|
| 75 (74) |
Leaf blade base usually slightly cordate; style ca. 5 mm. |
|
17 S. boisianum |
| + |
Leaf blade base broadly cuneate; style 15-20 mm. |
|
21 S. claviflorum |
| |
|
|
|
| 76 (73) |
Petals 4-6 mm |
|
(77) |
| + |
Petals 1-3 mm |
|
(79) |
| |
|
|
|
| 77 (76) |
Leaf blade secondary veins 12-16 on each side of midvein and 5-7 mm apart. |
|
14 S. gongshanense |
| + |
Leaf blade secondary veins 9-12 on each side of midvein and 8-16 mm apart |
|
(78) |
| |
|
|
|
| 78 (77) |
Calyx lobes ca. 3 mm; leaf blade abaxially brownish when dry, secondary veins at an angle of ca. 55° from midvein. |
|
8 S. laosense var. quocense |
| + |
Calyx lobes 1.5-2 mm; leaf blade abaxially pale green when dry, secondary veins at an angle of ca. 75° from midvein. |
|
28 S. xizangense |
| |
|
|
|
| 79 (76) |
Branchlets gray or grayish white when dry |
|
(80) |
| + |
Branchlets rufescent brown to dark brown when dry |
|
(81) |
| |
|
|
|
| 80 (79) |
Leaf blade secondary veins at an angle of 45° from midvein and 8-13 mm apart. |
|
24 S. yunnanense |
| + |
Leaf blade secondary veins at an angle ca. 60° from midvein and 2-3 mm apart. |
|
60 S. euonymifolium |
| |
|
|
|
| 81 (79) |
Stamens 1.5-2.5 mm; style to 2.5 mm. |
|
58 S. fruticosum |
| + |
Stamens 4-8 mm; style 6-8 mm |
|
(82) |
| |
|
|
|
| 82 (81) |
Petiole 10-15 mm; leaf blade base narrowly cuneate. |
|
77 S. nanpingense |
| + |
Petiole 5-8 mm; leaf blade base broadly cuneate. |
|
78 S. bubengense |
| |
|
|
|
| 83 (52) |
Branchlets quadrate or quadrangular |
|
(84) |
| + |
Branchlets terete or compressed |
|
(94) |
| |
|
|
|
| 84 (83) |
Petiole 10-15 mm |
|
(85) |
| + |
Petiole 1-5 mm |
|
(87) |
| |
|
|
|
| 85 (84) |
Calyx lobes 3-4 mm. |
|
11 S. austroyunnanense |
| + |
Calyx lobes 0.5-1.5 mm |
|
(86) |
| |
|
|
|
| 86 (85) |
Leaf blade elliptic, 8-10 cm, adaxially olive green and glossy when dry. |
|
42 S. rockii |
| + |
Leaf blade obovate to elliptic, 5-6 cm, adaxially dark olive green and dull when dry. |
|
68 S. euphlebium |
| |
|
|
|
| 87 (84) |
Hypanthium ca. 13 mm. |
|
17 S. boisianum |
| + |
Hypanthium 2-3.5 mm |
|
(88) |
| |
|
|
|
| 88 (87) |
Leaf blade 1.5-3 cm |
|
(89) |
| + |
Leaf blade (2.5-)3-10 cm |
|
(90) |
| |
|
|
|
| 89 (88) |
Stamens and style ca. 2.5 mm. |
|
37 S. buxifolium |
| + |
Stamens and style ca. 5 mm. |
|
38 S. grijsii |
| |
|
|
|
| 90 (88) |
Leaf blade elliptic to narrowly elliptic |
|
(91) |
| + |
Leaf blade ovate-lanceolate, lanceolate, narrowly oblong, oblong, or ovate-oblong |
|
(92) |
| |
|
|
|
| 91 (90) |
Leaf blade adaxially blackish brown when dry, base cuneate, apex acuminate. |
|
43 S. szemaoense |
| + |
Leaf blade adaxially greenish brown when dry, base broadly cuneate, apex acute to slightly obtuse. |
|
44 S. austrosinense |
| |
|
|
|
| 92 (90) |
Leaf blade secondary veins at an angle of ca. 45° from midvein. |
|
41 S. handelii |
| + |
Leaf blade secondary veins at an angle of 60°-70° from midvein |
|
(93) |
| |
|
|
|
| 93 (92) |
Leaf blade base broadly cuneate, apex acuminate. |
|
34 S. tenuirhachis |
| + |
Leaf blade base cuneate, apex caudate-acuminate. |
|
40 S. sichuanense |
| |
|
|
|
| 94 (83) |
Branchlets pubescent; hypanthium villosulous. |
|
22 S. vestitum |
| + |
Branchlets glabrous; hypanthium glabrous |
|
(95) |
| |
|
|
|
| 95 (94) |
Hypanthium clavate or shortly clavate |
|
(96) |
| + |
Hypanthium obconic, campanulate, ellipsoid, or semiglobose |
|
(99) |
| |
|
|
|
| 96 (95) |
Leaf blade secondary veins at an angle of ca. 40° from midvein. |
|
19 S. stenocladum |
| + |
Leaf blade secondary veins at an angle of 70°-85° from midvein |
|
(97) |
| |
|
|
|
| 97 (96) |
Leaf blade base suborbicular to obtuse, secondary veins at an angle of 80°-85° from midvein. |
|
65 S. zeylanicum |
| + |
Leaf blade base cuneate to broadly cuneate, secondary veins at an angle of 70°-75° from midvein |
|
(98) |
| |
|
|
|
| 98 (97) |
Petiole 9-14 mm. |
|
18 S. rysopodum |
| + |
Petiole 2-3 mm. |
|
64 S. araiocladum |
| |
|
|
|
| 99 (95) |
Hypanthium 6-20 mm |
|
(100) |
| + |
Hypanthium 2-5 mm |
|
(106) |
| |
|
|
|
| 100 (99) |
Calyx lobes 5-8 mm |
|
(101) |
| + |
Calyx lobes 1-4 mm |
|
(103) |
| |
|
|
|
| 101 (100) |
Petals ca. 2 cm. |
|
7 S. megacarpum |
| + |
Petals 0.7-1.5 cm |
|
(102) |
| |
|
|
|
| 102 (101) |
Leaf blade apex acuminate to long acuminate. |
|
4 S. jambos |
| + |
Leaf blade apex acute. |
|
9 S. globiflorum |
| |
|
|
|
| 103 (100) |
Stamens 1.5-2 cm; calyx lobes 3-4 mm |
|
(104) |
| + |
Stamens 0.4-0.8 cm; calyx lobes 1-3 mm |
|
(105) |
| |
|
|
|
| 104 (103) |
Shrubs 2-3 m tall; petiole 4-6 mm; leaf blade narrowly lanceolate, 1.5-2.5 cm wide. |
|
5 S. polypetaloideum |
| + |
Trees to 12 m tall; petiole less than 4 mm; leaf blade elliptic to oblong, 5-8 cm wide. |
|
6 S. samarangense |
| |
|
|
|
| 105 (103) |
Leaf blade adaxially grayish brown when dry, base broadly cuneate and slightly oblique. |
|
8 S. laosense |
| + |
Leaf blade adaxially olive green when dry, base cuneate. |
|
10 S. imitans |
| |
|
|
|
| 106 (99) |
Petiole 10-15 mm |
|
(107) |
| + |
Petiole 2-8 mm |
|
(111) |
| |
|
|
|
| 107 (106) |
Leaf blade secondary veins 8-13 mm apart. |
|
24 S. yunnanense |
| + |
Leaf blade secondary veins 1-2 mm apart |
|
(108) |
| |
|
|
|
| 108 (107) |
Leaf blade base obtuse to broadly cuneate and usually oblique, or wide and obtuse |
|
(109) |
| + |
Leaf blade base cuneate |
|
(110) |
| |
|
|
|
| 109 (108) |
Stamens ca. 3 mm; leaf blade adaxially blackish brown and dull when dry. |
|
79 S. infrarubiginosum |
| + |
Stamens 5-7 mm; leaf blade adaxially dark brown and glossy when dry. |
|
80 S. lineatum |
| |
|
|
|
| 110 (108) |
Leaf blade elliptic to ovate-elliptic, 8-12 cm. |
|
67 S. brachythyrsum |
| + |
Leaf blade obovate to elliptic, 5-6 cm. |
|
68 S. euphlebium |
| |
|
|
|
| 111 (106) |
Leaf blade apex caudate-acuminate or acuminate |
|
(112) |
| + |
Leaf blade apex obtuse, rounded, acute, or abruptly mucronate |
|
(114) |
| |
|
|
|
| 112 (111) |
Leaf blade elliptic to narrowly elliptic. |
|
43 S. szemaoense |
| + |
Leaf blade ovate-lanceolate to narrowly lanceolate |
|
(113) |
| |
|
|
|
| 113 (112) |
Petals ca. 1 mm; stamens ca. 1 mm. |
|
1 S. acuminatissimum |
| + |
Petals ca. 2 mm; stamens 4-5 mm. |
|
40 S. sichuanense |
| |
|
|
|
| 114 (111) |
Stamens 5-8 mm |
|
(115) |
| + |
Stamens 1.5-4 mm |
|
(116) |
| |
|
|
|
| 115 (114) |
Leaf blade secondary veins at an angle of ca. 45° from midvein. |
|
74 S. levinei |
| + |
Leaf blade secondary veins at an angle of ca. 80° from midvein. |
|
75 S. thumra |
| |
|
|
|
| 116 (114) |
Leaf blade intramarginal veins essentially at margin. |
|
70 S. howii |
| + |
Leaf blade intramarginal veins ca. 1 mm from margin |
|
(117) |
| |
|
|
|
| 117 (116) |
Hypanthium ca. 2 mm; stamens 1.5-2 mm. |
|
71 S. congestiflorum |
| + |
Hypanthium 4-5 mm; stamens 3-4 mm. |
|
73 S. saxatile |
