描述了产于江西九连山地区的苦苣苔科(Gesneriaceae)一新种——龙南报春苣苔(Primulina longnanensis G.L.Xu).该种与同属植物温氏报春苣苔(P.wenii Jian Li et L.J.Yan)、九连山报春苣苔(P.jiulianshanensis F.Wen et G.L.Xu)形态接近,且分子证据也表明该新种与温氏报春苣苔和九连山报春苣苔近缘,但前者花冠筒细筒形或弯曲细筒形,中间的苞片和中间的小苞片极小或退化,苞片和花萼裂片先端每侧具 1～3 个紫红色小齿,叶柄和叶片两面被腺毛,花丝疏被短腺毛,退化雄蕊无毛,花萼裂片、花冠筒、檐部裂片上唇和下唇以及退化雄蕊等部位均远小于后二者,故易与后二者相区别.
Primulina longnanensis(Gesneriaceae),a new species from Jiangxi
Primulina longnanensis G.L.Xu,a new Gesneriaceae species from Jiulianshan area in Jiangxi,China was described.Morphologically similar to Primulina wenii Jian Li et L.J.Yan and Primulina jiulianshanensis F.Wen et G.L.Xu,P.longnanensis stands out as a distinct taxon based on both morphological and molecular evidence.Key distinguishing characters include the tubular or curved-tubular corolla tube,central bracts and central bracteoles very small or absent,1-3 small purplish-red teeth at apex of each side of bracts and calyx lobes,glandular-pubescent on both surfaces of petioles and leaf blades,sparsely glandular-puberulent filaments,glabrous staminodes,and smaller obviously in calyx lobes,corolla tube,upper lip and lower lip of limb,and staminodes than P.wenii and P.jiulianshanensis.
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