习水报春的补充描述和贵州省报春花属2新记录种

Supplementary Description of Primula lithophila and Two New Recorded Species of Primula in Guizhou Province

习水报春(Primula lithophila F.H.Chen&C.M.Hu)是早期基于植物标本发表的物种,现有文献资料显示其物候期和诸多形态特征描述有误,导致物种界定困难。该研究基于模式产地的野外实地调查、文献资料考证、标本采集和形态特征比对等方法,补充描述习水报春形态特征和物候期。研究结果表明:习水报春的叶柄不具翅;花色为粉红色,稀白色,花莛高10~25 cm,花梗长15~30 mm,冠筒长约16 mm,冠檐直径10~15 mm。蒴果筒状,长约3 mm,约为宿存花萼一半;花期9月—翌年2月,果期3—6月。此外,文章还报道了贵州省报春花属2新记录种—天竺葵报春(P. pelargoniifolia G.Hao,C.M.Hu&Z.Y.Liu)和晚花报春[P. tardiflora(C.M.Hu) C.M.Hu]。

Primula lithophila was an early species published on plant specimens,and curremt literature of its phenological period and many biological characteristics were incorrectly described,which made it difficult to define the species.This study adopted methods such as field investigation,literature review,specimen collection,and morphological feature comparison in the type locality,the supplementary description of its phenological period and biological characteristics was provided.The results indicated that:the petioles of P.lithophila did not have wings,and color was pink with few white,scape 10-25 cm length,pedicel 15-30 mm length,corolla tube about 16 mm and limb diameter 10-15 mm respectively.Capsule tubular,about 3 mm long,approximately half long of the persistent calyx.The flowering period was from September to February,and the fruiting period was from March to June.In addition,two new recorded species:P.pelargoniifolia G.Hao,C.M.Hu&Z.Y.Liu and P.tardiflora(C.M.Hu)C.M.Hu,were reported.