Bouteloua americana (L.) Scribn.

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Lorêto Mun.

• Locality

  "Ilha de Balsas" region, between the Balsas & Parnaíba Rivers. 100 m. NE of main house of Fazenda "Morros", ca. 35 km south of Lorêto. At head of the brook "Riacho da Atraca"

• Elevation

  Alt. 300 m. (984 ft.)

• Coordinates

  -7.38, -45.07

• Distribution

  Map all specimens of this taxon

FLORA OF BRAZIL
STATE OF MARANHÀO
NEW YORK BOTANICAL GARDEN
00861814
Bout«lana americana (L#) Scriba*
(det* J.B.Swallen* 1964)
Municipio de Loreto: “Ilha de Balsas” region, between the Rios
Balsas and Parnaiba. ¡00 mehrs of main house of Fazenda
“Morros”, about 35 km. south of LORETO. Alt. ca. 300 m. A btuT
7° 2.3'S., 45° 4* /W. fit fact op bi-sck, "frack* J* A/rJLC*
Main vegetation types of region: (1) "chapada”, a semi-closed tree woodland (or
“cerrad&o”) on flat tops & steep sides of plateaus, w—p hilly j—i, and on
some areas of rolling or flat dry land; (2) “tabuleiro”, a semi-closed woodland,
or “cerrad&o”, of different physiognomy & species composition, on tops of billy
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 foreist tree species on low
moist flat land and in narrow valleys between “tabulelro”-covered hills; (5) “var-
jao”, low moist flat land with scattered forest trees of one or a few species;
(6) “cocal”, thick groves of babacu palm on Hat river plain of Bio Pamalba and
some of its tributary streams. /^iJMvegetation types completely deciduous during
dry season. All brooks intermittent?! Annual ground firea and cattle grazing in
all areas. Part of “tabuleiro” cut over, forming treeless grassy areas; most
“mata" and much “caatinga” & “varj&o” 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,
tan, 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 Rio Pamalba.
This habitat:	cF shrubby	¿’•rest'
frill cut- n rcu-jk ¿h.	j £ -f 2
Of
TRACY HERBARIUM, A. & M. COLLEGE OF TEXAS
Bouteloua americana (L.) Scribn.
Det. by: F. W. Gould	1967
leg. George Eiten and Liene T. Eiten, no. 3 9 7 /
Distributed by the Instituto de Botánica, s&o Paulo
00861814