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FOC | Family List | FOC Vol. 23 | Cyperaceae

16. CAREX sect. ANOMALAE J. Carey in A. Gray, Manual. 557. 1848.

异囊薹草组 yi nang tai cao zu

Authors: Lun-Kai Dai & Tetsuo Koyama

Rhizome sometimes stoloniferous. Involucral bracts leaflike or lowest one leaflike, shortly sheathed, upper ones setaceous, not sheathed. Spikes usually unisexual; terminal spike male; lateral spikes female, rarely bisexual, androgynous, female spikes rather remote, densely many flowered, pedunculate. Female glumes usually mucronate at apex, rarely without mucro. Utricles membranous, glabrous, some species purple-red papillate, glandular punctate, or punctate, shortly beaked, orifice subtruncate or emarginate. Style base not thickened; stigmas 3.

About 20 species: E Asia, Australia, North America; four species (one endemic) in China.


1 Utricles neither papillate nor glandular punctate   (2)
+ Utricles purple-red papillate or glandular punctate   (3)
       
2 (1) Utricles without conspicuous veins except costas, purple punctate; female glumes muticous; terminal spike male.   81 C. jaluensis
+ Utricles several veined between costas; female glumes long awned; terminal spike gynaecandrous.   82 C. hemineuros
       
3 (1) Female glumes oblong-ovate or ovate, 3-veined; utricles broadly obovate or broadly elliptic, 2.2-2.5 mm, purple-red papillate; nutlets broadly obovate or broadly elliptic, yellowish brown, shortly stipitate.   83 C. maculata
+ Female glumes narrowly oblong, 1-costate; utricles obovate, ca. 2 mm, purple-red glandular punctate; nutlets obovate, yellowish white, sessile.   84 C. angustiutricula

Lower Taxa


 

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