Gentiana yakushimensis

Description

Perennials 10-15 cm tall.Stems erect,simple,glabrous.Basal rosette leaves poorly developed;leaf blade triangular,3-7 × 1-1.5 mm,membranous,margin weakly hispid,apex acute,midvein distinct.Stem leaves in whorls of 3 or 4,middle leaves larger than lower or upper leaves,uppermost leaves surrounding calyx;leaf blade linear-lanceolate,1-1.5 cm × 1.5-3 mm,base connate for 2-3 mm,margin smooth and slightly revolute,midvein abaxially distinct.Flowers terminal,solitary,sessile,6-8merous.Calyx tube campanulate,6-8 mm,membranous;lobes narrowly elliptic,3.5-4.5 mm,herbaceous,base narrowed,margin smooth and slightly revolute,apex obtuse,midvein distinct.Corolla blue,tubular-campanulate,2.5-4.2 mm;lobes ovate,2.5-3 mm,margin erose,apex obtuse;plicae narrowly triangular,as long as lobes,margin erose,apex obtuse.Stamens inserted at basal part of corolla tube;filaments 8-10 mm;anthers ellipsoid,1.5-2 mm.Ovary narrowly obovoid,ca.1 cm;gynophore ca.5 mm.Style ca.4 mm;stigma lobes narrowly oblong.Capsules ellipsoid;gynophore short.Seeds fusiform.