Twenty new species of Paraboea (Gesneriaceae) from Thailand

Twenty new species of Paraboea are described from Thailand: Paraboea arachnoidea Triboun, Paraboea axillaris Triboun, Paraboea bhumiboliana Triboun & Chuchan, Paraboea doitungensis Triboun & D.J. Middleton, Paraboea eburnea Triboun, Paraboea insularis Triboun, Paraboea lavandulodora Triboun, Paraboea monticola Triboun & D.J. Middleton, Paraboea nana Triboun & Dongkumfu, Paraboea nobilis Triboun & D.J. Middleton, Paraboea peninsularis Triboun & D.J. Middleton, Paraboea phanomensis Triboun & D.J. Middleton, Paraboea quercifolia Triboun, Paraboea rosea Triboun, Paraboea sangwaniae Triboun, Paraboea siamensis Triboun, Paraboea takensis Triboun, Paraboea tenuicalyx Triboun, Paraboea vachareea Triboun & Sonsupab and Paraboea xylocaulis Triboun. Full descriptions and conservation assessments are provided for all taxa.