Otatea ximenae, Ruiz-Sanchez & Clark
publication ID |
https://doi.org/ 10.11646/phytotaxa.609.2.1 |
DOI |
https://doi.org/10.5281/zenodo.8274500 |
persistent identifier |
https://treatment.plazi.org/id/03AD87BF-FFFA-0C14-FF45-2ACBFEEFFC6B |
treatment provided by |
Plazi |
scientific name |
Otatea ximenae |
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Otatea ximenae View in CoL View at ENA ( Fig. 14 View FIGURE 14 )
Material examined: — MEXICO. Oaxaca: Asunción Nochixtlán, Km 190 of the Puebla-Oaxaca highway, 17°23’9.1”N, 97°8’8.9”W 1928 m, 2 February 2020, Ruiz-Sanchez & M GoogleMaps . A GoogleMaps . García-Martínez 645 ( IBUG!) .
Culm anatomy description: —Culm solid. Epidermis with a layer of axially elongated lignified cells, 12 µm length, with occasional rectangular silica bodies on top ( Fig. 16C View FIGURE 16 ). Cortex with one layer of thick-walled cells followed by 2 layers of wider, thinner-walled ovoidal cells (3 layers in total, 30 µm length; Fig. 16C View FIGURE 16 ). Vascular bundles in 5–6 alternating cycles ( Fig. 16A View FIGURE 16 ). Peripheral, transitional, and central vascular bundles surrounded by a sclerenchyma sheath defining their contour ( Figs. 16D–F View FIGURE 16 ). Ovate central vascular bundles, 309 ×304 μm; two round shaped metaxylem vessels, 75 × 83 μm; phloem with sieve tubes and companion cells located between two metaxylem vessels on the upper level, 78 × 98 µm; sieve tubes 19 × 20 µm ( Fig. 16F View FIGURE 16 ). Ground parenchyma with abundant starch grains. Frequent conical silica bodies across the ground tissue occupying intercellular spaces covering a mean area of 10 µm 2 ( Fig. 16B View FIGURE 16 ).
M |
Botanische Staatssammlung München |
A |
Harvard University - Arnold Arboretum |
IBUG |
Universidad de Guadalajara |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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