J Syst Evol ›› 2009, Vol. 47 ›› Issue (2): 162-167.DOI: 10.1111/j.1759-6831.2009.00015.x

• Research Articles • Previous Articles     Next Articles

Glycosmis longipetala F. J. Mou & D. X. Zhang, a new species of Rutaceae from China

Feng-Juan MOU 1 Dian-Xiang ZHANG*1   

  1. 1 ( South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China ) *Author for correspondence. E-mail: .
  • Received:2008-07-01 Published:2009-04-02

Abstract: Glycosmis longipetala F. J. Mou & D. X. Zhang is described from Guangxi and Yunnan provinces in southwestern China. The new species is similar to G. cochinchinensis (Lour.) Pierre ex Engl. by its simple leaves, but distinguishable in having long-elliptic or oblanceolate (vs. ovate) leaves, long-ovoid to ellipsoid (vs. ovoid) floral buds, ovaries with many tubercles (vs. smooth) and glabrous (vs. pubescent) stamens. The pollen grains of the new species are 23.9±3.09 (20.8–27.0)×22.0±1.80 (20.4–24.4) μm in size with reticulate exine ornamentation in equatorial area and foveolate in polar area. The chromosome number of the new species is 2n=72.

Key words: China, Glycosmis, Glycosmis longipetala F. J. Mou & D. X. Zhang, new species, pollen morphology, polyploidy, Rutaceae