A new species ofParaboea(Gesneriaceae) from a karst cave in Guangxi, China, and observations on variations in flower and inflorescence architecture

Abstract

A new species of Gesneriaceae, Paraboea trisepala W.H.Chen & Y.M.Shui, from a karst cave in Guangxi, China is described and illustrated. The new species differs from other species of Paraboea by its three-lobed calyx. Variation in flower and inflorescence architecture was observed under cultivation.

Paraboea wenshanensis, a new species of Gesneriaceae from Yunnan, China

“…Southern and south-western China has extensive areas of karst topography (Chenet al 2008) so that seed plants in this region show extreme diversity and are endemic on alkalescent limestone substrates (Xu 1993), a typical example being Gesneriaceae (Fang et al 1995, Wang et al 1998, Li and Wang 2004, Wei et al 2010, Ai et al 2015). …”

“…Clarke (Middleton et al 2010, Puglisi et al 2011), distributed from south to southwest China, Indo-China Peninsula to Malaysia, Indonesia and the Philippines (Burtt 1984, Xu and Burtt 1991, Xu et al 2008, Triboun and Middleton 2012). Many new taxa of this genus have been discovered and published in recent years (Chen et al 2008, Kiew 2010, Wei et al 2010, Chen et al 2012, Wen et al 2013, Wen and Wei 2016). Paraboea is restricted to Asia and includes about 130+ species (Weber 2004, Wen and Wei 2016).…”

Three new species of Paraboea (Gesneriaceae) from limestone karsts of China based on morphological and molecular evidence

“…and Trisepalum C.B.Clarke (Puglisi et al 2011 ), with the reduction of five taxa constituting the new genus Middletonia C.Puglisi (Puglisi et al 2016 ). More than 30 new species have also been described since the revision by Xu et al ( 2008 ), almost all narrowly distributed endemic from limestone karsts (Chen et al 2008 , 2012 ; Kiew 2010 ; Triboun and Middleton 2012 , 2015 ; Xu et al 2012a ; Triboun 2013 ; Wen et al 2013 ; Puglisi et al 2015 ; Guo et al 2016 ; Wen and Wei 2016 ). Because a great proportion of Asian limestone karsts remain unexplored or underexplored, it is fully expected that additional new species of Paraboea will be unearthed given that further field investigations and herbarium work are conducted (Puglisi et al 2015 ).…”

Paraboea yunfuensis: a new calcicolous species of Gesneriaceae from Yunfu, Guangdong Province, China

“…Paraboea includes at least 130 species distributed from South to Southwest China, Indo-China Peninsula to Malaysia, Indonesia, and the Philippines (Burtt 1948(Burtt , 1984Xu and Burtt 1991;Xu et al 2008Xu et al , 2012Chen et al 2008Chen et al , 2012Kiew 2010;Puglisi et al 2011;Triboun and Middleton 2012;Triboun 2013;Xu et al 2012) (Chen et al 2008(Chen et al , 2012Xu et al 2012;Wen et al 2013). This region includes the Guangdong province, a global plant diversity hotspot, whose karst formations contribute to 3.5% (6, 208 km 2 ) of its total area (Davis et al 1995).…”