Abstract
Ampelocalamuscalcareus is a climbing and slender bamboo, known from south Guizhou, China. This species grows in broadleaved forests of limestone montane areas. Recent molecular phylogenetic analyses demonstrated that A.calcareus was sister to all other lineages of the tribe Arundinarieae rather than a member of Ampelocalamus. The morphological features and habitats of A.calcareus and related genera including Ampelocalamus, Drepanostachyum and Himalayacalamus were compared and discussed. The characteristics of the branch complements, nodes and foliage leaves distinguish A.calcareus from morphologically similar taxa. On the basis of molecular and morphological evidence, we propose to establish a new genus, Hsuehochloa, to accommodate A.calcareus and to honour the late Chinese bamboo taxonomist Chi-Ju Hsueh (Ji-Ru Xue). In addition, we describe the inflorescence of Hsuehochloa for the first time.
Highlights
Temperate woody bamboos or the tribe Arundinarieae (Bambusoideae, Poaceae) comprise approximately 550 species in 31 genera (BPG 2012, Clark et al 2015)
Lineages VIII and X were formed by Indocalamus wilsonii (Rendle) C
We propose to establish a new genus for Ampelocalamus calcareus based on morphological characters and previous molecular results
Summary
Temperate woody bamboos or the tribe Arundinarieae (Bambusoideae, Poaceae) comprise approximately 550 species in 31 genera (BPG 2012, Clark et al 2015). They are mainly distributed in temperate to subtropical montane areas of East Asia H. Xia, respectively and Bergbambos Stapleton and Gaoligongshania D. Lineages VIII and X were formed by Indocalamus wilsonii (Rendle) C. S. Chao (lineage XI) was recovered as the sister taxon to all the other temperate woody bamboos (Yang et al 2013, Ma et al 2014). The phylogenetic positions of the abovementioned five monotypic lineages have obtained some support from nuclear gene trees (Zhang et al 2012, Yang et al 2013)
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