Cochinchinochloa (Gramineae: Bambusoideae-Bambusineae), a new bamboo genus endemic to Braian mountain, southern Vietnam

Abstract

A clambering bamboo endemic to Braian mountain, southern Vietnam represents a new monotypic endemic genus, Cochinchinochloa H.N.Nguyen & V.T.Tran (Gramineae: Bambusoideae-Bambusinae), which is described and illustrated. Its culm nodes and the nodes of leafy branches exhibit a thick swollen patella, and in the reproductive state this taxon bears pseudospikelets having two perfect florets, with an elongated rachilla internode between the perfect florets, a rachilla extension bearing an imperfect floret at maturity, a narrowly 2-keeled palea with a distinct abaxial groove, three lodicules, six stamens, free filaments, a glabrous ovary with a long style and three stigmas, and an oblong caryopsis with a relatively thin pericarp.

Yersinochloa gen. nov. (Gramineae: Bambusoideae‐Bambusineae) endemic to the Lam Vien Plateau, southern Vietnam

“…The subtribe Bambusinae J. S. Presl of Poaceae contains clambering or scrambling bamboos with iterautctant inflorescences. It has received critical attention during recent decades (Wong , , Widjaja , Nguyen and Tran ). Five distinct clambering or scrambling bamboo genera in Asia are currently recognized: 1) Maclurochloa K. M. Wong, 2) Soejatmia K. M. Wong from the Malay Peninsula (Wong ), 3) Neololeba Widjaja from the Philippines, central and eastern Indonesian islands, New Guinea and Queensland (Widjaja ), 4) Mullerochloa K. M. Wong from northeast Australia (Wong ), and 5) Cochinchinochloa (Nguyen and Tran ) from Vietnam.…”

“…It has received critical attention during recent decades (Wong , , Widjaja , Nguyen and Tran ). Five distinct clambering or scrambling bamboo genera in Asia are currently recognized: 1) Maclurochloa K. M. Wong, 2) Soejatmia K. M. Wong from the Malay Peninsula (Wong ), 3) Neololeba Widjaja from the Philippines, central and eastern Indonesian islands, New Guinea and Queensland (Widjaja ), 4) Mullerochloa K. M. Wong from northeast Australia (Wong ), and 5) Cochinchinochloa (Nguyen and Tran ) from Vietnam. In the systematics of these clambering or scrambling bamboo genera weight have traditionally been given to vegetative and floral characters (Wong , , Widjaja , Nguyen and Tran ).…”

“…This allows for the inclusion of consistent and accurate vegetative as well as floral characters in descriptions. Recently, the morphology of clambering or scrambling bamboo genera has been reviewed in depth (Nguyen and Tran ).…”

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

“…Recently, the morphology of clambering or scrambling bamboo genera in the tribe Bambuseae Kunth ex Nees, subtribe Bambusinae J. S. Presl have been reviewed in depth ( Nguyen and Tran 2012 ; Nguyen et al 2013 ; Nguyen and Tran 2016 ). Seven distinct clambering or scrambling bamboo genera in Asia are currently recognised: 1) Maclurochloa K.M.…”

Tóm Lược Thành Phần Bậc Phân Loại Thuộc Phân Tông Tre (Subtribe Bambusinae) Thuộc Họ Cỏ (Gramineae: Bambusoideae) Ở Việt Nam

“…However, Ohrnberger (1999) adopted Presl's generic concept with minor modification, which used the iterauctant inflorescence characters divided Bambusinae into 19 genera. This treatment was adopted by Wong (2005); and Nguyen and Tran (2013).…”