Published December 16, 2019
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FIG. 1 in Duckweeds (Araceae: Lemnoideae) growing on wet, vertical rocks behind a waterfall in Costa Rica, with a new country record of Wolffiella oblonga (Phil.) Hegelm.
Authors/Creators
- 1. Herbario Luis Fournier Origgi (USJ), Escuela de Biología, Universidad de Costa Rica, Apdo. 11501-2060, San José (Costa Rica) & Jardín Botánico Lankester, Universidad de Costa Rica, Apdo. 1031-7050, Cartago (Costa Rica)
- 2. Research associate, Herbario Luis Fournier Origgi (USJ), Escuela de Biología, Universidad de Costa Rica, Apdo. 11501-2060, San José (Costa Rica)
Description
FIG. 1. — Llanos de Cortés waterfall and its duckweed community: A, front view of the Llanos de Cortés waterfall on July 2015, before the partial collapse of its rock shelter; the contour of the latter is partially visible behind the water curtain; B, permanently wet, vertical rock wall of the shelter behind the waterfall, covered by duckweeds (green); C, portion of duckweed mat with several layers of individual plants, mostly of Wolffiella oblonga (Phil.) Hegelm.; D, detail of duckeeds (mostly W. oblonga) clinging to the rock wall only by means of the permanent water film, but notice plants of Lemna valdiviana Phil. near both fingernails; E, four plants of W. oblonga as seen under the dissecting microscope; F, small colony of L. valdiviana, clinging to the wet rock wall. Scale bars: B, 1 m; C, 5 cm; D, F, 1 cm; E, 5 mm.
Notes
Published as part of Blanco, Mario A. & Jiménez, José Esteban, 2019, Duckweeds (Araceae: Lemnoideae) growing on wet, vertical rocks behind a waterfall in Costa Rica, with a new country record of Wolffiella oblonga (Phil.) Hegelm., pp. 193-200 in Adansonia (3) 41 (15) on page 197, DOI: 10.5252/adansonia2019v41a15, http://zenodo.org/record/4602150
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