Journal
BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
Volume 192, Issue 1, Pages 21-33Publisher
OXFORD UNIV PRESS
DOI: 10.1093/botlinnean/boz047
Keywords
Arthrostylidiinae; Aulonemiella; Colombia; Ecuador; morphological convergence; South American woody bamboos
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Funding
- Iowa State University
- National Geographic Society
- National Science Foundation (NSF) [DEB-9218657]
- Danish National Science Foundation
- Pontificia Universidad Catolica del Ecuador (Herbario QCA)
- COLCIENCIAS-INCIVA [2108-07-009-85]
- NSF [DEB-0515712]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES, Brazil) [001]
- Grass Systematics
- Evolution symposium [88887.194402/2018-00]
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Aulonemiella (Poaceae: Bambusoideae: Bambuseae: Arthrostylidiinae), a new Andean genus from Colombia and Ecuador, is described and illustrated. It is characterized by its delicate scandent, vining habit, filiform to narrowly triangular, reflexed culm leaf blades, short, delicate foliage leaf fimbriae, synflorescences with subtending bracts and prophylls, awnless spikelets in spicate to racemose synflorescences and clavate rachilla internodes. The new species Auloneiniella laegaardii (southern Ecuador) is described, and the new combination A. ecuadorensis (Colombia and northern Ecuador) is made. Aulonemiella laegaardii is smaller overall and more delicate than A. ecuadorensis; it is also distinguished by its filiform, recurved culm leaf blades and paleas shorter than the lemmas. The culm leaf blades of A. ecuadorensis are narrowly triangular and straight, and its paleas are subequal to the lemmas; in addition, the synflorescence axes of A. ecuadorensis are usually apically zigzag at maturity.
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