Schoenoplectiella Lye (Lye 2003: 20)

Rasaminirina, Fitiavana & Larridon, Isabel, 2023, The genera of Cyperaceae of Madagascar, Plant Ecology and Evolution 156 (3), pp. 276-310 : 276

publication ID

https://dx.doi.org/10.5091/plecevo.98847

persistent identifier

https://treatment.plazi.org/id/7136C8D7-74A9-512C-AAA3-9F097EE25799

treatment provided by

by Pensoft

scientific name

Schoenoplectiella Lye (Lye 2003: 20)
status

 

Schoenoplectiella Lye (Lye 2003: 20) View in CoL

Type species.

Scirpus articulatus L. [= Schoenoplectiella articulata (L.) Lye]

Description of the genus.

Annuals or perennials, tufted or with firm, short to creeping rhizomes. Culms nodeless and scapose or 1(-3)-noded above the base, trigonous, terete or rarely 7-sided. Leaves reduced to a mucronate sheath, rarely with well-developed blades, ligulate or eligulate. Involucral bracts culm-like, erect, or patent while fruiting, rarely short, rigid, and sheathing, but then appearing as a continuation of the stem. Inflorescence pseudolateral, rarely appearing terminal, a corymb-like anthela or capitate with 1-many spikelets, rarely compound-paniculate with 1-many spikelets, with a conspicuously sinuous main axis. Glumes many, spirally arranged, deciduous or persistent, each subtending a flower; scale apex entire to apiculate. Floret bisexual, rarely polygamodoecious. Perianth bristles present or absent, formed by 0-10 parts, smooth or retrorsely scabrid, bristle-like, as long as or longer than the nutlet, deciduous with the fruit. Stamens 2-3, rarely vestigial in female flowers. Style 2-3-fid, base undifferentiated, rarely distinct and somewhat thickened, persistent. Nutlets smooth or transversely rugose to distinctly ridged, obovate, trigonous to planoconvex or biconvex, dark nearing black when mature, sometimes brown.

Distribution and ecology.

Schoenoplectiella is a cosmopolitan genus ( POWO 2022). It grows in freshwater wetlands, along stream banks, wet grasslands, and rocky areas. Schoenoplectiella is known from all parts of Madagascar; 13 species are known including e.g. Schoenoplectiella corymbosa (Roth ex Roem. & Schult.) J.R.Starr & Jim. Mejías (Figs 8C View Figure 8 , 20 View Figure 20 ).

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Poales

Family

Cyperaceae

SubFamily

Cyperoideae

Tribe

Pseudoschoeneae