Otatea acuminata AGS

García-Martínez, Miguel A., Terrazas, Teresa, Sánchez, Daniel, Reyes, Pablo Carrillo- & Ruiz-Sanchez, Eduardo, 2023, Culm anatomy of the genus Otatea (Poaceae, Bambusoideae, Bambuseae, Guaduinae) as a contribution to Mexican species identification, Phytotaxa 609 (2), pp. 75-102 : 78

publication ID

https://doi.org/ 10.11646/phytotaxa.609.2.1

DOI

https://doi.org/10.5281/zenodo.8272227

persistent identifier

https://treatment.plazi.org/id/03AD87BF-FFEB-0C05-FF45-2E2DFC00F934

treatment provided by

Plazi

scientific name

Otatea acuminata AGS
status

 

Otatea acuminata AGS View in CoL View at ENA ( Fig. 2 View FIGURE 2 )

Material examined: — Aguascalientes: Calvillo, Jagúey canyon, 3 km E of Piedras Chinas , 1.5 km N of El Zapote de la Labor , 21°58’46.99”N, 102°39’23.2”W, 1969 m, 9 June 2020, E GoogleMaps . Ruiz-Sanchez & M. A . García-Martínez 652 ( IBUG!) .

Culm anatomy description: —Culm solid. Epidermis with a layer of axially elongated lignified cells, 12 µm length, with axially elongated silica bodies ( Fig. 2B View FIGURE 2 ). Cortex with 2 layers of narrow thick-walled cells followed by 3–4 layers of thinner-walled rounded cells (5–6 layers in total, 70 µm length; Fig. 2B View FIGURE 2 ). Vascular bundles in 8–9 alternating cycles ( Fig. 2A View FIGURE 2 ). Peripheral, transitional, and central vascular bundles surrounded by a sclerenchyma sheath defining their contour ( Figs. 2C–E View FIGURE 2 ). Elliptical central vascular bundles, 488 × 444 μm; two round shaped metaxylem vessels, 98 × 106 µm; phloem with sieve tubes and companion cells located between two metaxylem vessels on the upper level, 119 ×136 µm; sieve tubes 24 µm × 23 µm ( Fig. 2E View FIGURE 2 ). Scarce amorphous silica bodies embedded along the periphery of vascular bundles occupying cellular spaces covering a mean area of 70 µm 2. Sporadic conical silica bodies across the ground tissue occupying intercellular spaces covering a mean area of 30 µm 2.

E

Royal Botanic Garden Edinburgh

N

Nanjing University

M

Botanische Staatssammlung München

A

Harvard University - Arnold Arboretum

IBUG

Universidad de Guadalajara

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Poales

Family

Poaceae

Genus

Otatea

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