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Xiang X.Y.,Anhui Normal University | Xiang X.Y.,Anqing Teachers College | Wu G.L.,Anqing Teachers College | Duan R.Y.,Anqing Teachers College | And 3 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2015

In this study, we investigated the intraspecific and interspecific competition of Pinus dabeshanesis (P. dabeshanesis) in Dabieshan Mountains, Yuexi county of Anhui province, using Hegyi individual competitive indices (CI) model. The competition intensity was analysed from the 53 target trees and 2079 competitive trees within the P. dabeshanesis community. The results showed that intraspecific and interspecific competition intensity of P. dabeshanesis accounted for 17.11% and 82.89% in the total competition intensity, respectively, indicating a remarkable effect of the interspecific competition. The value of the main competition intensity was laid out in numerical order, i. e., Quercus serrata > P. dabeshanesis > Pinus taiwanensis > Rhododendron mariesii > Castanea seguinii > Hamamelis mollis > Stewartia sinensis > Dendrobenthamia hupehensis>Bothrocaryum controversum > Carpinus turczaninowii. Notably, the competition intensity of P. dabeshanesis decreased inversely to diameter of the breast height (DBH), which showed a stronger competition at DBH of < 25 cm and appeared weaker at DBH over 25 cm. The relationship between the whole forest competition intensity and DBH of the target tree followed the power function (CI = AD-B). In conclusion, this model could effectively predict the intraspecific and interspecific competition of P. dabeshanesis. © 2015, Science Press. All rights reserved. Source


Hong X.,Anhui Normal University | Hong X.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Hong X.,Chinese Academy of Sciences | Zhou S.-B.,Anhui Normal University | And 3 more authors.
Blumea: Journal of Plant Taxonomy and Plant Geography | Year: 2014

A new species of Gesneriaceae from south-western Guangxi, China, Petrocodon villosus, is described and illustrated. It resembles P. ferrugineus, but is differentiated by several characters, such as the size of bracts, calyx and corolla, the indumentum of leaf blades, calyx, filaments and the outside of the corolla; the corolla tube shape, limb and lobes, the disc and stigma. A description of P. villosus, together with illustrations, habitat description and a diagnostic comparison are presented. © 2014 Naturalis Biodiversity Center. Source


Hong X.,Anhui Normal University | Wang O.-W.,Anhui Normal University | Zhou S.-B.,Anhui Normal University | Zhou S.-B.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Wen F.,CAS Institute of Botany
Willdenowia | Year: 2014

Primulina argentea Xin Hong, F. Wen & S. B. Zhou, sp. nov. (Gesneriaceae) is described and illustrated from N Guangdong Province, S China. It is morphologically close to P. fengshanensis F. Wen & Yue Wang and P. orthandra (W. T. Wang) Mich. Möller & A. Weber, but is differentiated from its congeners by several characters of the shape, texture and indumentum of the leaf blade and bracts, length of pedicels, size of calyx lobes, colour of corolla, indumentums of staminodes, etc. A description of P. argentea together with illustrations, distribution map, habitat description and a diagnostic comparative table with P. fengshanensis and P. orthandra are presented. © 2014 BGBM Berlin-Dahlem Source


Zhou S.-B.,Anhui Normal University | Zhou S.-B.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Hong X.,Anhui Normal University | Wen F.,Anhui Normal University | And 2 more authors.
Bangladesh Journal of Plant Taxonomy | Year: 2013

A new species of Hemiboea, H. roseoalba, from Guangdong, China, is described and illustrated. It is similar to H. gracilis and H. angustifolia in leaf and flower shape, but can be distinguished by leaf blade with serrulate from the middle to the apex, lateral veins 7-9 on each side of midrib; peduncle 2.5-3.0 cm long, glabrous; cymes 4-6-flowered; triangular calyx base connate for c. 0.3 cm; pink corolla 4.0-4.3 cm long and margin of lobes curled or retroflexed; staminodes 3; pistil 3.7-4.0 cm long; disc 2 mm high and truncate stigma slightly swollen. © 2013 Bangladesh Association of Plant Taxonomists. Source


Zhou S.-B.,Anhui Normal University | Zhou S.-B.,The Key Laboratory of Conservation and Employment of Biological Resources of Anhui | Hong X.,Anhui Normal University | Hong X.,CAS Institute of Botany | And 3 more authors.
Bangladesh Journal of Plant Taxonomy | Year: 2014

Primulina lechangensis (Gesneriaceae), a new species from northern Guangdong province in southern China is described and illustrated. Its morphology suggests affinities to P. longicalyx, but can be distinguished from similar taxon by several distinct characters including: smaller leaf blade (2.0-3.5 × 1.0-1.2 cm), base cuneate-attenuate; smaller bracts (1.0-1.5 × c. 0.15 cm); shorter calyx lobes (0.8-0.9 cm long) tuberculate inside; smaller corolla tube (c. 2 cm long), inflated in the middle and contracted near the mouth; shorter glabrous filaments (0.3-0.4 cm long), inserted 1.3-1.5 cm from base of corolla; stamens and staminodes glabrous; pistil 1.4-1.5 cm long, and capsule c. 1.5 cm long. This species is further exemplified by photographs, and a distribution map is presented. © 2014 Bangladesh Association of Plant Taxonomists. Source

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