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Carex jianfengensis (Carex sect. Rhomboidales, Cyperaceae), a New Species from Hainan, China.

Yang H, Li X, Wang W, Bai C, Liu G - PLoS ONE (2015)

Bottom Line: A new species of Carex sect.Rhomboidales, C. jianfengensis, is described and illustrated from Hainan, China.The new species is similar to C. zunyiensis but differs in having involucral bracts sparsely hispid and with ca.1 cm long sheaths; inflorescence with 4 spikes, terminal spike ca. 2.5 cm long, lateral spikes 2-3.5 × 0.7-1 cm; staminate glumes narrowly ovate, ca. 5 mm; pistillate glumes triangular-lanceolate, 5-7 mm; perigynia 6-8 × 3 mm and pubescent on veins; nutlet 4-5 mm long, rhombic-ovoid, trigonous, base with shortly stipitate, apex abruptly contracted into a erect short beak, and not expanding into an annulate orifice.

View Article: PubMed Central - PubMed

Affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropic Agricultural Sciences, Danzhou, Hainan, People's Republic of China.

ABSTRACT
A new species of Carex sect. Rhomboidales, C. jianfengensis, is described and illustrated from Hainan, China. The new species is similar to C. zunyiensis but differs in having involucral bracts sparsely hispid and with ca.1 cm long sheaths; inflorescence with 4 spikes, terminal spike ca. 2.5 cm long, lateral spikes 2-3.5 × 0.7-1 cm; staminate glumes narrowly ovate, ca. 5 mm; pistillate glumes triangular-lanceolate, 5-7 mm; perigynia 6-8 × 3 mm and pubescent on veins; nutlet 4-5 mm long, rhombic-ovoid, trigonous, base with shortly stipitate, apex abruptly contracted into a erect short beak, and not expanding into an annulate orifice.

No MeSH data available.


Related in: MedlinePlus

Carex jianfengensis A. Perigynium, B. Nutlet, C. Surface sculpturing; C. zunyiensis D. Perigynium, E. Nutlet, F. Surface sculpturing. (C. zunyiensis from IBSC).Scale bars: A. B. D. E = 1 mm; C = 50 um; F = 100 um.
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pone.0136373.g002: Carex jianfengensis A. Perigynium, B. Nutlet, C. Surface sculpturing; C. zunyiensis D. Perigynium, E. Nutlet, F. Surface sculpturing. (C. zunyiensis from IBSC).Scale bars: A. B. D. E = 1 mm; C = 50 um; F = 100 um.

Mentions: The new species is most similar to C. zunyiensis based on the shape of the leaves, the very short culms and the subbasal and approximate spikes, but differs sufficiently to be recognized as a new species in morphological features (Table 1, Figs 1 and 2).


Carex jianfengensis (Carex sect. Rhomboidales, Cyperaceae), a New Species from Hainan, China.

Yang H, Li X, Wang W, Bai C, Liu G - PLoS ONE (2015)

Carex jianfengensis A. Perigynium, B. Nutlet, C. Surface sculpturing; C. zunyiensis D. Perigynium, E. Nutlet, F. Surface sculpturing. (C. zunyiensis from IBSC).Scale bars: A. B. D. E = 1 mm; C = 50 um; F = 100 um.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4580456&req=5

pone.0136373.g002: Carex jianfengensis A. Perigynium, B. Nutlet, C. Surface sculpturing; C. zunyiensis D. Perigynium, E. Nutlet, F. Surface sculpturing. (C. zunyiensis from IBSC).Scale bars: A. B. D. E = 1 mm; C = 50 um; F = 100 um.
Mentions: The new species is most similar to C. zunyiensis based on the shape of the leaves, the very short culms and the subbasal and approximate spikes, but differs sufficiently to be recognized as a new species in morphological features (Table 1, Figs 1 and 2).

Bottom Line: A new species of Carex sect.Rhomboidales, C. jianfengensis, is described and illustrated from Hainan, China.The new species is similar to C. zunyiensis but differs in having involucral bracts sparsely hispid and with ca.1 cm long sheaths; inflorescence with 4 spikes, terminal spike ca. 2.5 cm long, lateral spikes 2-3.5 × 0.7-1 cm; staminate glumes narrowly ovate, ca. 5 mm; pistillate glumes triangular-lanceolate, 5-7 mm; perigynia 6-8 × 3 mm and pubescent on veins; nutlet 4-5 mm long, rhombic-ovoid, trigonous, base with shortly stipitate, apex abruptly contracted into a erect short beak, and not expanding into an annulate orifice.

View Article: PubMed Central - PubMed

Affiliation: Tropical Crops Genetic Resources Institute, Chinese Academy of Tropic Agricultural Sciences, Danzhou, Hainan, People's Republic of China.

ABSTRACT
A new species of Carex sect. Rhomboidales, C. jianfengensis, is described and illustrated from Hainan, China. The new species is similar to C. zunyiensis but differs in having involucral bracts sparsely hispid and with ca.1 cm long sheaths; inflorescence with 4 spikes, terminal spike ca. 2.5 cm long, lateral spikes 2-3.5 × 0.7-1 cm; staminate glumes narrowly ovate, ca. 5 mm; pistillate glumes triangular-lanceolate, 5-7 mm; perigynia 6-8 × 3 mm and pubescent on veins; nutlet 4-5 mm long, rhombic-ovoid, trigonous, base with shortly stipitate, apex abruptly contracted into a erect short beak, and not expanding into an annulate orifice.

No MeSH data available.


Related in: MedlinePlus