Notes on the genus Trachyandra (Asphodelaceae: Asphodeloideae) 1: A review of the T. thyrsoidea group (Section Trachyandra), including three new species from the Northern Cape

作者：Boatwright J S^*; Manning J C

来源：South African Journal of Botany, 2010, 76(3): 499-510.

DOI：10.1016/j.sajb.2010.03.007

• Asphodelaceae
• New species
• South Africa
• Succulent Karoo
• Taxonomy
• Trachyandra

Three new species of the genus Trachyandra are described, T. hantamensis Boatwr. & J.C. Manning, T. kamiesbergensis Boatwr. & J.C. Manning and T. sanguinorhiza Boatwr. & J.C. Manning. These species form part of a group of morphologically similar species referred to here as the T. thyrsoidea group and are distinguished by their generally small stature, filiform leaves (except for T tortilis), and simple or shortly branched racemes of patent flowers with maculate tepals. Many of the species in the group have roots that contain abundant anthraquinones, visible as a red substance below the outer skin of the roots, and which is soluble in alcohol, thus often staining herbarium papers purple. A synopsis of the eight species that comprise the T. thyrsoidea group is presented, with maps of each species and illustrations of those described as new.

• 出版日期2010-8