Scleria achtenii De Wild.

Goetghebeur, P. & Larridon, I., 2019, A revision of Scleria (Cyperaceae) in Madagascar, Blumea 64 (3), pp. 195-213 : 205-206

publication ID	https://doi.org/10.3767/blumea.2019.64.03.01
persistent identifier	https://treatment.plazi.org/id/BC3D9F16-6E11-FFDA-FC87-EBDB25BDFD07
treatment provided by	Felipe
scientific name	Scleria achtenii De Wild.
status

Treatment

14. Scleria achtenii De Wild. View in CoL

Scleria achtenii De Wild. (1926) 16. — Type: Achten 97B (lectotype designated here: BR0000008638908), Democratic Republic of Congo, Kasaï.

Scleria substriatoalveolata De Wild. (1926) 23. — Type: Vanderyst 1890 (lectotype BR0000008638915), Democratic Republic of Congo, June 1913.

Scleria subintegriloba De Wild.(1927) View in CoL 238. — Scleria achtenii var. subintegriloba (De Wild.) Piérart (1953) View in CoL 47. — Type: H. Vanderyst 2839 (lectotype designated here: BR0000008638397, isolectotype: BR0000008638380), Democratic Republic of Congo, Dec. 1913.

Perennial with reddish rhizome, 6 by 0.3 cm. Culm 0.45–0.70 m by 0.7–1.1 mm, slightly swollen at the base. Leaves 20– 25 by 0.4–0.5 cm, pseudopraemorse, scabrid, with retrorse hairs along the margin and central nerves; sheath winged, scabrid; contraligule membranous, reddish. Inflorescence consisting of reduced, truncated panicles, laterals solitary; peduncles 2–6 cm. Spikelets unisexual or subandrogynous; glumes bearing male flowers 4–4.5 mm long, female 4.5–5.5, straw-coloured. Nutlet white, pitted, hairy; hypogynium with long lobes, 2–3- fid, white.

Distribution — Tropical and southern Africa, Madagascar.

Habitat — Only one locality in Madagascar, on a sandy embankment in mid altitude evergreen forest, alt. 1127 m.

Conservation — Scleria achtenii is widely distributed in Tropical and southern Africa, and there are no specific threats which affect this species. Therefore, it is here assessed as Least Concern.

Additional specimens. MADAGASCAR, Fianarantsoa,Ranomafana National

Park, 1127 m, 21 Apr. 2010, I. Larridon et al. 2010-0228B ( GENT) .

Note — First time cited from Madagascar. The hypogynium of S. achtenii , unlike S. nyasensis C.B.Clarke , has bifid or trifid lobes and a single inflorescence panicle in each node.