Limits...
Carex diaoluoshanica (Carex sect. Lageniformes, Cyperaceae), a new species from Hainan, China.

Yang H, Wang Q, Bai C, Li X, Liu G - PLoS ONE (2014)

Bottom Line: Carex diaoluoshanica, a new species of Carex sect.Lageniformes from Hainan, China, is described and illustrated.The new species is similar to C. breviscapa but differs in having wider leaves with the leaf base gradually narrowed, 5-10 cm long and petiolelike, culms subfiliform, with only two spikes, the lateral female spikes from near the culm base.

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
Carex diaoluoshanica, a new species of Carex sect. Lageniformes from Hainan, China, is described and illustrated. The new species is similar to C. breviscapa but differs in having wider leaves with the leaf base gradually narrowed, 5-10 cm long and petiolelike, culms subfiliform, with only two spikes, the lateral female spikes from near the culm base.

Show MeSH
Carex diaoluoshanica.A. Habit. B. Stigmas. C. Terminal staminate spike. D. Inflorescence(pistillate spikes enclosed in bladeless sheaths). E. Pistillate glume. F. Flowering phase lateral pistillate spikes. G. Fruit period lateral pistillate spikes. H. Perigynium. J. Nutlet. Photographs by Hu-biao Yang.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4061016&req=5

pone-0097658-g001: Carex diaoluoshanica.A. Habit. B. Stigmas. C. Terminal staminate spike. D. Inflorescence(pistillate spikes enclosed in bladeless sheaths). E. Pistillate glume. F. Flowering phase lateral pistillate spikes. G. Fruit period lateral pistillate spikes. H. Perigynium. J. Nutlet. Photographs by Hu-biao Yang.

Mentions: During an investigation of the flora of Diaoluo Shan Nature Reserve in 2013, a new species belonging to Carex sect. Lageniformes was found (Fig. 1). This species is similar to C. breviscapa C. B. Clarke, but differs sufficiently to be recognized as a new species. Nine specimens (one holotype, four isotypes and four paratypes) of the studied are kept in the Herbarium of South China Botanical Garden, the Chinese Academy of Sciences (IBSC), and the Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences (TCGRI). Based on the shape of the perigynium and nutlet, the new species is most similar to Carex breviscapa, but they differ distinctly as follows (the former is new species, the latter is C. breviscapa): culms subfiliform, ca. 0.5 mm thick (culms slightly scabrid, ca. 2–5 mm thick); leaf blades 7–15 mm wide with the base attenuate and petiolelike, ca. 5–10 cm long (leaf blades 6–7 mm wide, not attenuate at base); inflorescence with just 2 spikes (inflorescence 3–5-noded, with 3–5 spikes at each node); lateral spikes 1–1.5 cm long (3–4 cm long), lateral female spike solitary, arising from near culms base and enclosed within bladeless sheaths (lateral female spikes many, arising from well above culm base).


Carex diaoluoshanica (Carex sect. Lageniformes, Cyperaceae), a new species from Hainan, China.

Yang H, Wang Q, Bai C, Li X, Liu G - PLoS ONE (2014)

Carex diaoluoshanica.A. Habit. B. Stigmas. C. Terminal staminate spike. D. Inflorescence(pistillate spikes enclosed in bladeless sheaths). E. Pistillate glume. F. Flowering phase lateral pistillate spikes. G. Fruit period lateral pistillate spikes. H. Perigynium. J. Nutlet. Photographs by Hu-biao Yang.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4061016&req=5

pone-0097658-g001: Carex diaoluoshanica.A. Habit. B. Stigmas. C. Terminal staminate spike. D. Inflorescence(pistillate spikes enclosed in bladeless sheaths). E. Pistillate glume. F. Flowering phase lateral pistillate spikes. G. Fruit period lateral pistillate spikes. H. Perigynium. J. Nutlet. Photographs by Hu-biao Yang.
Mentions: During an investigation of the flora of Diaoluo Shan Nature Reserve in 2013, a new species belonging to Carex sect. Lageniformes was found (Fig. 1). This species is similar to C. breviscapa C. B. Clarke, but differs sufficiently to be recognized as a new species. Nine specimens (one holotype, four isotypes and four paratypes) of the studied are kept in the Herbarium of South China Botanical Garden, the Chinese Academy of Sciences (IBSC), and the Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences (TCGRI). Based on the shape of the perigynium and nutlet, the new species is most similar to Carex breviscapa, but they differ distinctly as follows (the former is new species, the latter is C. breviscapa): culms subfiliform, ca. 0.5 mm thick (culms slightly scabrid, ca. 2–5 mm thick); leaf blades 7–15 mm wide with the base attenuate and petiolelike, ca. 5–10 cm long (leaf blades 6–7 mm wide, not attenuate at base); inflorescence with just 2 spikes (inflorescence 3–5-noded, with 3–5 spikes at each node); lateral spikes 1–1.5 cm long (3–4 cm long), lateral female spike solitary, arising from near culms base and enclosed within bladeless sheaths (lateral female spikes many, arising from well above culm base).

Bottom Line: Carex diaoluoshanica, a new species of Carex sect.Lageniformes from Hainan, China, is described and illustrated.The new species is similar to C. breviscapa but differs in having wider leaves with the leaf base gradually narrowed, 5-10 cm long and petiolelike, culms subfiliform, with only two spikes, the lateral female spikes from near the culm base.

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
Carex diaoluoshanica, a new species of Carex sect. Lageniformes from Hainan, China, is described and illustrated. The new species is similar to C. breviscapa but differs in having wider leaves with the leaf base gradually narrowed, 5-10 cm long and petiolelike, culms subfiliform, with only two spikes, the lateral female spikes from near the culm base.

Show MeSH