|
|
|
12. Polystichum sect. Sorolepidium (Christ) Tagawa, Acta Phytotax. Geobot. 9: 122. 1940.
高山耳蕨组 gao shan er jue zu
Sorolepidium Christ, Bot. Gaz. 51: 350. 1911; Polystichum sect. Lasiopolystichum Daigobo; P. ser. Moupinensia H. S. Kung & Li Bing Zhang.
Plants small, summer-green. Upper part of rhizome often with persistent stipe bases. Lamina 1-pinnate, lanceolate or elliptic-lanceolate. Pinnae deeply or shallowly pinnatifid. Pinnae ovate, deltoid, or oblong, indistinctly toothed, mucronate. Microscales linear or lanceolate. Sori abaxial or terminal on veinlets. Indusia large, membranous, erose.
About 16 species: alpine regions in Asia; 13 species (seven endemic) in China.
The currently defined Polystichum sect. Sorolepidium is comparable to P. ser. Moupinensia H. S. Kung & Li Bing Zhang, only a part of P. sect. Lasiopolystichum sensu H. S. Kung & Li Bing Zhang in FRPS (5(2): 60. 2001). Molecular data (Liu et al., Chin. Sci. Bull. 52: 631-638. 2007) show that Sorolepidium is nested within Polystichum.
|
|
|
|
| 1 |
Basalmost pinnae pinnatilobate or pinnatifid but not pinnatipartite |
|
(2) |
| + |
Basalmost pinnae pinnatipartite and with 1-7 nearly free lobes dissected nearly to midrib |
|
(5) |
| |
|
|
|
| 2 (1) |
Stipe and rachis with light brown scales and scales with blackish brown centers. |
|
55 P. paramoupinense |
| + |
Stipe and rachis scales light brown |
|
(3) |
| |
|
|
|
| 3 (2) |
Rachis often subglabrous; pinnae glabrous adaxially. |
|
52 P. lachenense |
| + |
Rachis with dense scales; pinnae with lanceolate microscales adaxially |
|
(4) |
| |
|
|
|
| 4 (3) |
Indusia exindusiate. |
|
53 P. glaciale |
| + |
Indusia indusiate. |
|
54 P. duthiei |
| |
|
|
|
| 5 (1) |
Only pinnae of lower part of lamina with 1 or 2 pairs of free lobes dissected to midrib |
|
(6) |
| + |
Pinnae with more than 3 pairs of free lobes dissected to midrib |
|
(8) |
| |
|
|
|
| 6 (5) |
Stipe and rachis with light brown scales and scales with blackish brown centers; pinnae below middle of lamina ovate or oblong. |
|
56 P. castaneum |
| + |
Stipe and rachis scales concolorous; pinnae below middle of lamina deltoid-ovate or ovate |
|
(7) |
| |
|
|
|
| 7 (6) |
Stipe stramineous, sometimes brown at base; pinnae acute or acuminate at apex. |
|
57 P. moupinense |
| + |
Stipe brown; pinnae obtuse or rounded at apex. |
|
58 P. habaense |
| |
|
|
|
| 8 (5) |
Stipe brown, with brown scales and scales with blackish brown centers. |
|
59 P. melanostipes |
| + |
Stipe stramineous |
|
(9) |
| |
|
|
|
| 9 (8) |
Stipe and rachis with light brown scales and scales with blackish brown centers |
|
(10) |
| + |
Stipe and rachis scales concolorous |
|
(11) |
| |
|
|
|
| 10 (9) |
Pinnae oblong or ovate, obtuse or rounded at apex. |
|
63 P. salwinense |
| + |
Pinnae narrowly deltoid or narrowly ovate, acute at apex. |
|
64 P. nigrum |
| |
|
|
|
| 11 (9) |
Stipe and rachis scales yellowish brown to fulvous. |
|
60 P. integrilobum |
| + |
Stipe and rachis scales brown |
|
(12) |
| |
|
|
|
| 12 (11) |
Lamina 11-30 cm; indusia flat. |
|
61 P. shensiense |
| + |
Lamina 8-12 cm; indusia arc-shaped. |
|
62 P. taizhongense |
|
|
|
List of lower taxa
| Related Links (opens in a new window) |
|
Other Databases
|
|
|
|
|
|
|
|
|
