The identity of Sasa oblongula C.H.Hu (Poaceae, Bambusoideae, Arundinarieae): evidence from morphology and molecular data

By

Li, Xing
Ni, Jing-Bo
Xia, Nianhe

Type

Article

Date of Publication

2023

Original Publication

PhytoKeys

Volume

226

Pages

17--32

Subjects

Bamboo , China , Phylogeny , Pseudosasa , taxonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.226.101221

 

Abstract

Sasa oblongula was described in 1987 based on a cultivated plant at the bamboo garden of Sun Yat-sen University. This species has two or three branches at the upper nodes, which differ from the rest of Sasa species that have a single branch per node. During the field trip to Baishi Town, Yunfu City, Guangdong Province in July 2021, one bamboo species with oblong foliage leaves was collected and matches the isotype. Then, our question was to test the identity of S. oblongula concerning other Sasa species based on morphology and molecular data. To do that, we sequenced the whole chloroplast genome of S. oblongula and did a phylogenetic analysis. Our morphological results indicate that the new collection is S. oblongula. The phylogenetic tree showed that S. oblongula is close to Pseudosasa, instead of Sasa species. Therefore, we transferred it to the genus Pseudosasa, and a revised description of P. oblongula is provided here.