Longgang National Natural Reserve Administration of Guangxi

Guangxi, China

Longgang National Natural Reserve Administration of Guangxi

Guangxi, China

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Huang Y.-S.,CAS Institute of Botany | Lu M.-X.,Longgang National Natural Reserve Administration of Guangxi | Liu S.-Y.,Longgang National Natural Reserve Administration of Guangxi | Xu W.-B.,South China Agricultural University
Nordic Journal of Botany | Year: 2013

A new species of Capparaceae, Capparis longgangensis X. L. Mo & X. S. Lee ex Y. S. Huang is described and illustrated. The new species is similar to C. micracantha DC., but differs from it by the following characteristics: twigs, gynophore, outer surface of sepals and persistent style densely yellow-brown pannose, leaves densely yellow-brown pannose on both surfaces when young, abaxial surface thinly yellow-brown pannose when mature, petal thinly yellow-brown pannose, fruit 5-7 mm long, ca 6 mm in diameter, apical persistent style 3-4 mm long. © 2013 The Authors.


Wu W.-H.,CAS Institute of Botany | Wu W.-H.,South China Agricultural University | Meng T.,CAS Institute of Botany | Xu W.-B.,CAS Institute of Botany | And 2 more authors.
Phytotaxa | Year: 2012

A new species of Gesneriaceae from Southwest Guangxi, China is described here as Primulina sinovietnamica. This previously unknown species is morphologically similar to P. pungentisepala and P. ningmingensis, but can be distinguished from the latter two taxa by several non-overlapping morphological characters. This hypothesis is consistent with the molecular phylogenetic tree based on sequences of the chloroplast matK gene, confirming evolutionary affinity of the new species to the two morphologically similar taxa. The three sampled individuals from the two presently known populations of the new species cluster together in the phylogenetic analysis, separated from the other two closest taxa by two common base substitutions, confirming the recognition of this new species. © 2012 Magnolia Press.


Xiang W.-S.,CAS Institute of Botany | Wang B.,CAS Institute of Botany | Ding T.,CAS Institute of Botany | Huang Y.-S.,CAS Institute of Botany | And 3 more authors.
Chinese Journal of Ecology | Year: 2013

Excentrodendron hsienmu is a characteristic species in karst seasonal rain forest, and thus, to study the age structure and survival status of E. hsienmu population can provide insight into the succession process and status of karst seasonal rain forest. Based on the investigation data from a 15 hm2 plot in a karst seasonal rain forest at Nonggang of South China, and by using quantitative analysis method, this paper studied the age structure and quantitative dynamics of E. hsienmu population in the forest. In the forest, E. hsienmu population was characterized by the abundance of young individuals, and the age structure of the population was in an inverse-J shape. The survival curve of the population could be described by the Deevy II curve and Deevy III curve, but more appropriately by Deevy II curve, which implied that E. hsienmu reproduced a large number of offspring to maintain its population. There existed two peak phases of mortality rate in the population lifespan, i. e., 0-9 and 60-69 years. The survivability of the population had the characteristics of fluctuated at young age, stable at middle age, and decline at old age. The quantitative dynamics of the population had no obvious large cycle fluctuation, but a small cycle (about 11 years) fluctuation. In conclusion, the E. hsienmu population in the karst seasonal rain forest was of an expanding structure, and the survival status of the population fluctuated across different life stages, with a relatively high mortality rate at young and mature stages. The age structure and quantitative dynamics of the population could be greatly affected by the biological characteristics of the population itself and by the restrictive effect of negative density as well as the karst geological drought.


Lin C.-R.,CAS Institute of Botany | Nong Z.-Q.,Longgang National Natural Reserve Administration of Guangxi | Huang Y.-S.,CAS Institute of Botany | Meng T.,CAS Institute of Botany | Liu Y.,CAS Institute of Botany
Nordic Journal of Botany | Year: 2015

Aspidistra longgangensis C. R. Lin, Y. S. Huang & Yan Liu, a new species of Asparagaceae from the limestone areas in Guangxi, China, is described and illustrated. It is similar to A. guangxiensis S. C. Tang & Yan Liu in the shape of the flower, but differs by leaf blade pachyphyllous and bigger; the perianth lobes with appendages at base, appendage oblong, 3-5 mm long, apex incurved; stigma upper surface white, with 4(3) radial, bifurcate lines in the center. The new species is currently known only from Longgang National Natural Reserve, situated in southwestern Guangxi, China, near the border with northern Vietnam. © 2015 Nordic Society Oikos.

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