TL;DR: The phylogenetic analysis suggests that S. hemsleyanus is a sister species to Styrax odoratissimus in Styracaceae, which is valued for its beauty and fragrance.
Abstract: Styrax hemsleyanus is valued for its beauty and fragrance. Here, we characterized the complete chloroplast (cp) genome of S. hemsleyanus using next generation sequencing. The circular complete cp genome of S. hemsleyanus is 158,027 bp in length, containing a large single-copy (LSC) region of 87,641 bp, and a small single-copy (SSC) region of 18,290 bp. It comprises 133 genes, including 8 rRNA genes, 37 tRNAs genes, and 88 protein-coding genes. The GC content of S. hemsleyanus cp genome is 36.95%. The phylogenetic analysis suggests that S. hemsleyanus is a sister species to Styrax odoratissimus in Styracaceae.
TL;DR: Leaf venation characteristics of 10 species from Styrax in Hunan were examined to provide new morphological evidence for the classification of Styrax and distinctive characteristics are different among species, which can be used to identify species.
Abstract: Leaf venation characteristics of 10 species from Styrax in Hunan were examined to provide new morphological evidence for the classification of Styrax.The results show that: the secondary veins' angle have interspecies differences among 7 species in Styrax(Styrax japonicus,Styrax suberifolius,Styrax dasyanthus,Styrax hemsleyanus,Styrax faberi,Styrax calvescens and Styrax odoratissimus);but there are little differences among the other 3 species(Styrax tonkinensis,Styrax suberifolius,Styrax macrocarpus) and the tertiary veins on the margin have no branches;the quaternary veins are slightly tenuous and closely arranged except the veins of Styrax suberifolius which are relatively thick.These distinctive characteristics are different among species,which can be used to identify species.