부산대학교 도서관

Abstract Townsendia lemhiensis (Asteraceae) is described from the Lemhi Valley of east-central Idaho. From a genus with weak intrinsic isolating barriers, T. lemhiensis remains distinct apparently due to apomixis and to its isolation and habitat specialization on spatially limited occurrences of ashy white soils in the Lemhi Valley. Despite similarities to T. spathulata , this new species differs in its persistent pappus, fewer series of phyllaries and sericeous rather than long woolly hairs. Keywords: Apomixis, compositae, Flora of Idaho, Lemhi Valley
Author(s): Christopher Lee (corresponding author) [1]; Curtis R. Björk [2]; Jeannette Whitton [3] Introduction Townsendia Hook. includes about 29 recognized species distributed predominantly throughout the Rocky Mountain and Great Basin [...]