Thursday, July 21, 2011

[Botany • 2009] Impatiens nanlingensis A. Q. Dong & F. W. Xing • new species (Balsaminaceae) from Guangdong, China

Impatiens nanlingensis A. Q. Dong & F. W. Xing sp. nov.

Impatiens nanlingensis A. Q. Dong & F. W. Xing, a new species of Impatiens (Balsaminaceae) from Guangdong, China, is described and illustrated. It is morphologically similar to I. jinggangensis Y. L. Chen, but differs mainly by its lateral united petals; basal lobes suborbicular, marked with yellow stripes; distal lobes narrowly caudate, apex tailed. It also resembles I. bicornuta, but I. bicornuta differs mainly in its longer peduncles, up to 25 cm, pale blue purple flowers and broadly sigmoid-curved saccate lower sepal.

Impatiens nanlingensis A. Q. Dong & F. W. Xing sp. nov. (Fig. 1 -2)

Species nova I. jinggangensi Y. L. Chen et I. bicornutae Wall. affinis, sed a priore petalis lateralibus longioribus, 18 22 mm longis, lobis corollae superioribus obovatis vel suborbiculatis, inferioribus apice longicaudatis divergit; ab altera floribus roseis vel intense roseis, pedunculis brevioribus 3 6 cm longis, sepalis inferioribus late infundibuliformibus differt.

Type: China, Guangdong Province, Shaoguan City, Nanling National Forest Park, Mount Babaoshan, thick soil along margins of evergreen broad-leaved forests, 24895?N, 113805?E, ca 1050 m a.s.l., 9 Sep 2008, An-Qiang Dong 2200 (holotype: IBSC).

An-Qiang Dong, Lin Chen and Fu-Wu Xing. 2009. Impatiens nanlingensis sp. nov. (Balsaminaceae) from Guangdong, China. Nordic Journal of Botany. 27: 475 477. doi:10.1111/j.1756-1051.2009.00554.x /