Aster shennongjiaensis (Asteraceae), a new species from central China
نویسندگان
چکیده
A new species of Aster (Asteraceae) from China, Aster shennongjiaensis W. P. Li et Z. G. Zhang, is described and its morphology and karyotype illustrated. Aster shennongjiaensis is apparently endangered, presently known only from one small population in bamboo forests of Shennongjia Reserve in central China. On a morphological basis, the closest species to A. shennongjiaensis is A. lasiocladus Hayata, but they are quite different in many features. The morphological characteristics of the two species are compared. Karyotype of the new species is described and formulated as 2n = 2x = 18 = 16m + 2sm.
منابع مشابه
A new species of Doronicum (Asteraceae, Senecioneae) from central China
The name Doronicum thibetanum Cavill. has been inadvertently applied in herbarium labels to designate a species distributed in central China (provinces of Gansu and Sichuan). However, the study of the type specimen reveals that it is actually a species of Aster. The central Asian species of Doronicum has no available name and is thus here described as D. cavillieri Álv. Fern. & Nieto Fel. This ...
متن کاملInaccessible Biodiversity on Limestone Cliffs: Aster tianmenshanensis (Asteraceae), a New Critically Endangered Species from China
Aster tianmenshanensis G. J. Zhang & T. G. Gao, a new species of Asteraceae from southern China is described and illustrated based on evidence from morphology, micromorphology and molecular phylogeny. The new species is superficially similar to Aster salwinensis Onno in having rosettes of spatulate leaves and a solitary, terminal capitulum, but it differs by its glabrous leaf margins, unequal d...
متن کاملDevelopment and characterization of SSR markers for Aster savatieri (Asteraceae)1
PREMISE OF THE STUDY Simple sequence repeat (SSR) markers were developed for Aster savatieri (Asteraceae) and the serpentine variety A. savatieri var. pygmaeus to re-evaluate their taxonomic status. METHODS AND RESULTS Using RNA-Seq data, 22 expressed sequence tag (EST)-SSR markers were developed. Polymorphisms were assessed in A. savatieri and in A. savatieri var. pygmaeus. The average numbe...
متن کاملCousinia elymaitica (Cardueae, Asteraceae) a new species from west of Iran
Cousinia elymaitica, which has been collected from western Iran, is described in this paper as a new species. This new species has been assigned to the sect. Pugioniferae on the basis of its habit, purple corolla and decurrent leaves. Its closest related species is C. macroptera. A distribution map and an illustration of the related specimens have also been provided.
متن کاملCOUSINIA PAPILLOSA, A NEW SPECIES FROM EASTERN IRAN, INCLUDING CHROMOSOME COUNT AND PALYNOLOGICAL STUDIES
Cousinia papillosa (Asteraceae) from eastern Iran is described and illustrated as a new species. Differences between the new species and its closest relative, C. meshhedensis, are discussed. A map showing the distribution of the two species is given. The scanning electron micrography of the pollen grains shows obvious differences between the two species especially in the sculpturing of exine. T...
متن کامل