Blechnum gracile var. pilosum Boudrie & Cremers

• Region

  South America

• Country

  Brazil

• State/Province

  Amazonas

• Locality

  Rio Negro, Rio Cauaburí. Camp No. II, Rio Tucano.

• Elevation

  Alt. 259 m. (850 ft.)

• Coordinates

  0.694239, -65.9507

• Coordinate Uncertainty (m)

  10396.6

• Georeferencing Method

  Georeferencing Quick Reference Guide, Version 2012. Referred to "Fôlha Parima NA-20" [map] for location information for Tucano (in this case assumed it to be Rio Tucano because no village of Tucano found) (Carta do Brasil ao Milionésimo, Fôlha Parima NA-20 [map]. 1:1,000,000. In: Faissol, Speridião et. al. Carta Internacional do Mundo ao Milionésimo. 2nd edition. Rio de Janeiro: Instituto brasileiro de geografia e estatistica, 1972. p. 3.). Unable to find the precise location of "Camp No. II;" instead, georeferenced to the approximate geographic midpoint of Rio Tucano, a tributary of Rio Cauaburi, in Mun. Santa Isabel do Rio Negro, Amazonas. Used the reference map and Google Maps - Earth View to locate Rio Tucano. Used the Google Maps - Measure Distance Tool to measure a straight line between the approximate geographic center of the mouth of Rio Tucano (confluence of Rio Tucano and Rio Cauaburi) and the headwaters of the river (approximated through the dense forest cover), then halved this distance to find the midpoint of the line. Chose a point along Rio Tucano nearest to the midpoint of the line; used the Google Maps - What's Here Tool to find the coordinates of the approximate geographic center of the river, on the adjacent shore (collection assumed to be terrestrial). Used the Google Maps - Measure Distance Tool again to find the linear extent by measuring from the selected coordinates to the farthest extent of Rio Tucano. Input coordinates, linear extent (10370.0 m), and measurement error (25 m) into the MaNIS Georeferencing Calculator to find the uncertainty radius.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

LA
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THE NEW YORK BOTANICAL GARDEN
Plants of the Third Serra da Neblina Expedition 1965-1966
Rio Negro, Rio Cauaburi, Brasil
No. 60327
Blechnum fraxinium Willd. .
Det: J.T. Mieke1, 10/77
NEW YORK BOTANICAL GARDEN
02597208
Terrestrial, Camp Tucano (Camp No* 2),
alt. 850 ft, Rio Tucano, Amazonas.
LEW YO^
botanical
®ARDEt*
Bassett Maguire, Julian A. Steyermark
Celia E. Maguire
December 3, 1965
Field operations conducted by the Universidade de Brasilia, the Instituto Agro-
nomico do Norte, the Instituto Nacional de Pesquisas da Amazonia, and The
New York Botanical Garden. Supported by funds provided by the National
Science Foundation.
02597208