Adiantum argutum Splitg.

• Region

  South America

• Country

  Brazil

• State/Province

  Rondônia

• Locality

  Trail north of Rio Madeira from 2 km. below confluence of Rio Abunã

• Coordinates

  -9.65483, -65.4515

• Coordinate Uncertainty (m)

  1687

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Unable to find the precise location of the trail mentioned in the locality description; instead, georeferenced to the shore of Rio Madeira approximately 2 km "below" (assumed to be downstream) the confluence of Rio Madeira and Rio Abunã in Rondônia, Brazil (very nearby the Bolivian-Brazilian border). Using Google Maps - Earth View, located the confluence of Rio Madeira and Rio Abunã. Beginning at the approximate geographic center of the confluence of the rivers, used the Google Maps - Measure Distance Tool to measure approximately 2 km (2.00 km) downstream (toward the mouth) along Rio Madeira, then used the Google Map - What's Here Tool to find the coordinates of the offset along the adjacent shore. Used the Google Maps - Measure Distance Tool again to find the linear extent of the starting location, the mouth of the river, by measuring from the selected coordinates to the farthest extent of the confluence of the rivers. Input coordinates, linear extent (1.18 km), measurement error (0.005 km), and distance precision (1 km) into the MaNIS Georeferencing Calculator to find the uncertainty radius.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

Instituto de Botánica - IBt
Herbário SP
<yo/,7^
Det.: J. Prado	/Ol^lVíG*
THE NEW YORK BOTANICAL GARDEN
INSTITUTO NACIONAL DE PESQUISAS DA AMAZONIA
Plants of Brazilian Amazonia
Territory of Ronddnia
Basin of Rio Madeira
No. 83U£
Trail north of Rio Madeira from 2km. below
confluence of Rio Abuna. Forest on terra
firme. Growing on rocks.
Polypodiaceae
G. T. Prance, W. A. Rodrigues,
J. F. Ramos & L. G. Farias November 12,	1968
Field work carried out in collaboration with the Instituto de Pesquisas e
Experimenta cao Agropecuaria do Norte, Belém, and financed in greater part
by the National Science Foundation.
Specimens deposited in: ENPA, NY, US, K, S, MG, F, U, A, R, P, M,
MICH, C, G, MO, COL, VEN.
02554361