Eragrostis maypurensis (Kunth) Steud.

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Loreto Mun.

• Locality

  "Ilha de Balsas" region, between the Rios Balsas and Parnaíba. 1/2 km. S of main house of Fazenda "Morros", about 35 km. south of Lorêto. By trail to Santa Bárbara

• Elevation

  Alt. 300 m. (984 ft.)

• Coordinates

  -7.38, -45.07

• Distribution

  Map all specimens of this taxon

v°
BOTANICAL.
?S&RO&t'
NEW YORK BOTANICAL GARDEN
Univ. Federal do Rio Grande do Sul (ICN)
Eragrostis maypurensis (Kunth) Steudel
det. Sonja Castro Boechat, Feb. 1995
FLORA OF BRAZIL
STATE OF MARANHÄO
Eragrostis myporensìs
(HB!^) St«ud.
(d«t. J.R.Svallen ,1964)
Municipio de Loreto: “Hha de Balsas” region, between the Rios
Balsas and Pamaiba. Ca.l/2 km S of main house of Fazenda
“Morros”, about 35 km. south of LORETO. Alt. ca. 300 m.
u • 7°23 ’S., 45° 4 *W.
Main vegetation types of region: (1) “chapada”, a semi-closed tree woodland (or
“cerrad&o”) on flat tops & steep sides of plateaus, 0» otiip htlly	and on
some areas of rolling or flat dry land; (2) “tabuleiro”, a semi-closed woodland,
or "cerrad&o”, of different physiognomy & species composition, cm tops of hHly
or gently rolling land; (3) “mata”, a closed tropical forest of many tree species,
usually with palms, in flat stream valleys and in or alongside of brook ravines &
courses; (4) “caatinga”, a semi-open forest of few forest tree species on low
moist flat land and in narrow valleys between “tabuleiro”-covered hills; (5) “var-
j&o”, low moist flat land with scattered forest trees of one or a few species;
(6) “cocal”, thick groves of babacu palm on flat river plain of Bio Pamaiba and
some of its tributary streams .W 4JtWvegetation types completely deciduous during
dry season. All brooks intermittent. Annual ground fires and cattle grazing In
all areas. Part of “tabuleiro” cut over, forming treeless grassy areas; most
“mata” and much “caatinga” & “varjao” cultivated or abandoned, forming dense
secondary vegetation of low trees & tall shrubs (“capoeira”); some areas of
“chapada” with dense secondary vegetation ("carrasco”). Upland soils grayish,
t.y.n, or light reddish brown silt or silty clay, very stony on Slopes; lowland soils
mostly reddish brown to black silt loam, silty clay loam or clay loam, without
stones. Country rock horizontal light brown sandstone, exposed only on tops
of morros and on cliffs along the Bio Pamaiba.
This habitat: "chapada” a few mrfcers north of the
brook ravine called "Grota Grande ”, By trail to
Santa Barbara.
8 May 1962
leg. George Eiten and Liene T. Eiten, no. 4537*
Distributed by the Instituto de Botànica, S&o Paulo
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