Pennisetum polystachion (L.) Schult.

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Lorêto Mun.

• Locality

  "Ilha de Balsas" region, between the Rios Balsas and Parnaíba. Santa Barbara, due SSE of Lorêto, on shore of Rio Parnaíba. Ca. 1 km E of "Riacho da Simiana"

• Elevation

  Alt. 140 m. (459 ft.)

• Coordinates

  -7.5, -45.05

• Distribution

  Map all specimens of this taxon

^ 2. P. f
FLORA OF BRAZIL
STATE OF MARANHAO
stttosum (Swartz) Rich
(d#t.J.R.Swallen,1964)
Municipio de Loreto: “Ilha de Balsas” region, between the Rios
Balsas and Pamaiba. SANTA BARBARA, due SSE of Loreto, on
shore of Rio Parnaiba. Flat river* plain, less than 1 km. wide, several
meters above river level, covered with dense babagu palm grove.
Alt. 140 m. 7°30’s., 45°3’W. Ca* 1 km E of *Riacho da Simiana"*
M’n.in vegetation types of region: (1) “chapada", a semi-closed tree woodland (or
“cerradfto”) on flat tops & steep sides of plateaus, (JH"^Jtiiuji) liMlj iniid, and on
some areas of rolling or flat dry land; (2) “tabuleiro”, a semi-dosed woodland,
or “cerradfto", of different physiognomy & species composition, on tops of hilly
dr 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; (3) “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.fVRM vegetation 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” & “varjfto” 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 Pamaiba.
This habitat: on river plain about 15 m. from river.
cane press, in disturbed ground in babgyu grove*
26 May 1962
, with many separate individuals growing «i«“
in pseudo-dump. 1 1/2 m. tall.
George Eiten and Liene T. Eiten, no.
_ '__U'rom plant 2)
Distributed by the Institute de Bot&nica, S&o Paulo
00896194