|
|
|
26. Carex sect. Decorae (Kükenthal) Ohwi, Mem. Coll. Sci. Kyoto Imp. Univ., Ser. B, Biol. 11: 338. 1936.
美穗薹草组 mei sui tai cao zu
Authors: Prof. Song-Yun Liang, Tetsuo Koyama & Gordon C. Tucker
Carex subsect. Decorae Kükenthal in Engler, Pflanzenr. 38(IV. 20): 541. 1909.
Rhizome short or long creeping. Culms slightly stout. Leaves basal or cauline. Involucral bracts leaflike, rarely setaceous, sheathing. Inflorescence a panicle, each partial panicle with 2-7 spikes; terminal 1 or 2 male; remaining spikes androgynous, with unequal peduncles. Female glumes pale brown, purple-red, or blood-red. Utricles suberect or obliquely patent, elliptic or ovate-lanceolate, compressed trigonous, glabrous or hispid, beak long, orifice pale hyaline. Nutlets oblong or elliptic-obovate, trigonous; stigmas 3.
About 26 species: E, S, and SE Asia; 11 species (eight endemic) in China.
|
|
|
|
| 1 |
Leaves cauline. |
|
176 C. insignis |
| + |
Leaves basal, rarely cauline |
|
(2) |
| |
|
|
|
| 2 (1) |
Spikes sessile or subsessile, several spikes aggregated in capitate inflorescences. |
|
184 C. subperakensis |
| + |
Spikes pedunculate, not forming capitate inflorescences |
|
(3) |
| |
|
|
|
| 3 (2) |
Leaf blades 7-12 mm wide |
|
(4) |
| + |
Leaf blades 2-5 mm wide |
|
(7) |
| |
|
|
|
| 4 (3) |
Style base curved. |
|
182 C. zhenkangensis |
| + |
Style base erect |
|
(5) |
| |
|
|
|
| 5 (4) |
Utricles glabrous, faintly veined; style base glabrous. |
|
183 C. baiposhanensis |
| + |
Utricles hispidulous, conspicuously veined |
|
(6) |
| |
|
|
|
| 6 (5) |
Style base hispidulous. |
|
185 C. perakensis |
| + |
Style base glabrous. |
|
186 C. morii |
| |
|
|
|
| 7 (3) |
Utricles ca. 2.3 mm; culms compressed cylindric. |
|
177 C. pomiensis |
| + |
Utricles 3-7 mm; culms trigonous |
|
(8) |
| |
|
|
|
| 8 (7) |
Female glumes ± equaling utricle, apex obtuse, muticous; utricles hispidulous, curved, stipitate. |
|
178 C. jizhuangensis |
| + |
Female glumes much shorter than utricle, 1-veined costa excurrent into an awn at apex; utricles glabrous or sparsely pubescent, contracted at base |
|
(9) |
| |
|
|
|
| 9 (8) |
Utricles lanceolate, 6-7 mm, sparsely pubescent. |
|
181 C. urelytra |
| + |
Utricles elliptic, 3-4 mm, glabrous |
|
(10) |
| |
|
|
|
| 10 (9) |
Spikes 3-4 cm; utricles yellowish green. |
|
179 C. dielsiana |
| + |
Spikes 1-2 cm; utricles chestnut-brown. |
|
180 C. anomoea |
|
|
|
List of lower taxa
| Related Links (opens in a new window) |
|
Other Databases
|
|
|
|
|
|
|
|
|
