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. 2023 Apr 7:224:175-182.
doi: 10.3897/phytokeys.224.101201. eCollection 2023.

 Yersinochloanghiana, a new species (Poaceae, Bambusoideae, Bambuseae) from southern Vietnam

Tran Thai Vinh  1   2 , Nong Van Duy  1   2 , Hoang Thanh Truong  3 , Tran Van Tien  4
Affiliations

 Yersinochloanghiana, a new species (Poaceae, Bambusoideae, Bambuseae) from southern Vietnam

Tran Thai Vinh et al. PhytoKeys. .

Abstract

Yersinochloanghianasp. nov. from Vietnam is described and illustrated. It is found from southern Vietnam, where it occurs at an elevation of 1130 m in Braian Mountain, Di Linh District, Lam Dong Province. This new species is distinguished from a similar species, Yersinochloadalatensis, by culm nodes with a thick swollen patella, culm leaf blades erect, auricles conspicuous, margins bearing long hairs, palea dorsal view showing rachilla extension and rudimentary floret at the apex and lodicules bifid at the base.

Keywords: Vietnam; Yersinochloa; new species.

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Figures

Figure 1.
Figure 1.
Yersinochloanghiana V.T.Tran: A habitat B clump C, D shoots E culm leaf (dorsal view) F, G auricles H culm leaf swollen at the base I leafy branch J, K section of leafy branch L branches several with middle one dominant. Photos by Tran Van Tien from type locality.
Figure 2.
Figure 2.
Yersinochloanghiana V.T.Tran: A–C inflorescence terminating at leafy branches D, E pseudo-spikelets F, G perfect florets H rachilla internode I, J prophyllate bud keeled K lemma L lemma (dorsal view) M palea with rachilla extension N palea (dorsal view) with rachilla extension O stigmas P lodicules Q stamens R caryopsis S fruit. Photos by Tran Van Tien from type locality.
Figure 3.
Figure 3.
Yersinochloanghiana V.T.Tran and Y.dalatensis H.N. Nguyen & V.T. Tran: A1–A3 culm leaves A4 fertile floret with rachilla extension A5 lodicules A6 fruit B1 culm leaf B2 fertile floret without rachilla extension B3 lodicules B4 fruit. Photos by Tran Van Tien from type locality.
See this image and copyright information in PMC

References

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    1. Nguyen HN, Tran VT. (2016) Yersinochloa gen. nov. (Gramineae: Bambusoideae-Bambusineae) endemic to the Lam Vien Plateau, southern Vietnam. Nordic Journal of Botany 34(4): 400–404. 10.1111/njb.01048 - DOI
    1. Nguyen HN, Tran VT, Hoang TT. (2013) Cochinchinochloa (Gramineae: Bambusoideae-Bambusineae), a new bamboo genus endemic to Braian mountain, southern Vietnam. Blumea 58(1): 28–32. 10.3767/000651913X669068 - DOI
    1. Widjaja EA. (1997) New taxa in Indonesian bamboos. Reinwardtia 11(2): 57–152.

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