312 
Card. Bull. Singapore 69(2) 2017 
Mich.Moller & A.Weber (Wang, 1981; Weber et al., 2011), P. maguanensis (Z.Yu 
Li et al.) Mich.Moller & A.Weber (Xu et al., 2008; Weber et al., 2011), and others. 
Although Primulina wuae shares this very striking large bract character with these 
species, overall it more closely resembles P. beiliuensis var. fimbribracteata F.Wen 
& B.D.Lai (Lai & Wen, 2015). The corolla of many Primulina species is generally 
rather featureless except for a few distinct features such as yellow ridges ventrally 
in the corolla tube (also present in other Gesneriaceae genera) and coloured ‘flaps’ 
dorsally in the tube that hold the style in place (Weber, 2004), as in P. wuae. The new 
species also looks rather similar to Primulina pseudoroseoalba (Li et al., 2014) which 
has the same leaf shape but differs in corolla characters. Primulina wuae lacks corolla 
ridges but has ‘flaps’, whereas both ridges and flaps are lacking in P. pseudoroseoalba. 
However, flaps and a similar corolla colouration are present in other species such 
as Primulina subrhomboidea and P. roseoalba. Primulina wuae is compared to the 
morphologically similar taxa P. pseudoroseoalba, P. roseoalba, P. subrhomboidea and 
P. beiliuensis var. fimbribracteata in Table 1. 
ACKNOWLEDGEMENTS. This study was financially supported by the Foundation of 
Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China 
Botanical Garden, Chinese Academy of Sciences; the Foundation of Guangxi Key Laboratory 
of Plant Conservation and Restoration Ecology in Karst Terrain (16-A-01-01, 16-A-01-02, 
16-B-01-01); the Natural Science Foundation of Guangxi (2015GXNSFBB139004); Guangxi 
science and technology project (Guike AB16380053); the Open Project of Beijing Engineering 
Research Center of Rural Landscape Planning and Design (kf2017061); the STS Program of 
the Chinese Academy of Sciences (Grant No. KFJ-3W-Nol). We also thank the anonymous 
reviewers’ valuable suggestions for improvements to this paper. 
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