J Syst Evol ›› 1990, Vol. 28 ›› Issue (5): 397-402.

• Research Articles • Previous Articles     Next Articles

Notes on Two Species of the Genus Adenophora from Liaoning Prov. and Their Chromosome Numbers

Qiu Jun‐Zhuan, Hong De‐Yuan   

  • Published:1990-09-10

Abstract: Two species, Adenophora contracta J. Z. Qu et Hong and A. pinifolia Kitag., are treated and described in this paper. The former species was originally treated as a va riety, A. polyantha Nakai var. contracta Kitag. Based on gross morphology, this taxon is found to be very distinct, so that it is here treated as a separate species A. contracta (Kitag.) J. Z. Qu et Hong. With much smaller corollas strongly contracted at the throat, much smaller corolla lobes and smaller fruits, calyx lobes and seeds, it can easily be distinguished from A. polyantha Nakai. Its chromosome number is 2n=34. A. pinifolia was once considered a doubtful species (Hong, Fl. Reip. Pop. Sin. 73(2): 139, 1983) mainly because the original description for this entity is so similar to the description for A. gmelinii. The problem was further compounded by the lack of herbarium material. Collections made near its type loca lity, intended to rectify this deficiency, further clarified this species status: Its chromosomenumber is also 2n=34.

Key words: Adenophora, A.contracta, A.pinifolia, Chromosome number