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FOC | Family List | FOC Vol. 23 | Cyperaceae

7. Carex sect. Hemiscaposae C. B. Clarke, J. Linn. Soc., Bot. 37: 4. 1904.

花葶薹草组 hua ting tai cao zu

Authors: Shuren Zhang, Tetsuo Koyama & Gordon C. Tucker

Culms lateral. Leaves basal and 1 or 2 on upper part of culm. Radical leaves with sheath elongate, pipelike; leaf blade lanceolate or narrowly elliptic, narrowed toward both ends; culm leaves much reduced, sheathlike. Inflorescence paniculate; partial panicles subtended by a sheathlike bract bearing a short blade much surpassed by the subtended partial panicle. Spikes androgynous.

Ten to 12 species: S China, India, Laos, Vietnam; nine species (six endemic) in China.

1 Inflorescence branches with 1 or 2(or 3) spikes; leaf blade replicate; utricle with many raised veins   (2)
+ Inflorescence branches with 10 or more to numerous spikes; leaf blade flat; utricle only with 2 lateral veins abaxially   (3)
2 (1) Inflorescence branches single, rarely binate; spike linear-cylindric; basal leaf single.   30 C. kucyniakii
+ Inflorescence branches binate or ternate; spike oblong; basal leaves 2 or 3 tufted.   31 C. peliosanthifolia
3 (1) Panicle simple, usually with only 1 terminal branch, rarely with 1 or 2 lateral branches; culms soft   (4)
+ Panicle compound, with several branches; culms rigid   (5)
4 (3) Leaf blade linear, margins flat; male part of spike cylindric, 3-5 × ca. 1 mm; culms hairy and later glabrescent.   28 C. ypsilandrifolia
+ Leaf blade narrowly elliptic, margins replicate; male part of spike circular or oblong, 2.5-4 × ca. 3 mm; culms hairy.   29 C. lingii
5 (3) Inflorescence branches paniculate; male part of spike linear-lanceolate or linear   (6)
+ Inflorescence branches subcorymbose; male part of spike circular, oblong, or oblong-cylindric   (7)
6 (5) Male glume 1-1.5 mm; nutlet ovoid, style base conic.   24 C. damiaoshanensis
+ Male glume 3-3.5 mm; nutlet elliptic, style base not conic.   23 C. scaposa
7 (5) Leaf blade linear or linear-oblanceolate; utricle ovate, beak only ca. 1/4 length of utricle.   27 C. liouana
+ Leaf blade narrowly elliptic, narrowly elliptic-lanceolate, or narrowly elliptic-oblanceolate, rarely narrowly elliptic-linear; utricle elliptic, beak slightly shorter than 1/2 length of utricle   (8)
8 (7) Leaf blade margins densely ciliate; petiole loosely or densely hairy; nutlet elliptic.   25 C. densifimbriata
+ Leaf blade margins smooth; petiole glabrous; nutlet ovate.   26 C. adrienii

Lower Taxa


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