Cyperus luzulae (L.) Rottb. ex Retz.

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Lorêto Mun.

• Locality

  "Ilha de Balsas" region, between the Rios Balsas and Parnaíba. 1/2 km west of main house of Fazenda "Morros", about 35 km south of Lorêto.

• Elevation

  Alt. 300 m. (984 ft.)

• Coordinates

  -7.38, -45.07

• Distribution

  Map all specimens of this taxon

FLORA OF BRAZIL
STATE OF MARANHÀO
Cyperus luzulae.(L*) Retz.
(det.: L.T. Eiten, 1970)
Municipio de Loreto: “Ilha de Balsas” region, between the Rios
Balsas and Parnaiba. l/2 km* west of main house of Fazenda
“Morros”, about 35 km. south of LORfiTO. Alt. ca. 300 m. Approx.
7° 23 ’S., 45° U ’W.
Main vegetation types of region: (1) “ehapada”, a semi-closed, tree woodland (or
“cerrad&o”) on Hat tops & steep sides of plateaus, »n. staap hilly land, 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 hilly
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-
jfto”, low moist flat land with scattered forest trees of one or a few species;
(6) “cocal”, thick groves of babagu palm on flat river plain of Bio Parnaiba and
some of its tributary streams. /w&nWvegetatlon 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” & “varj&o” cultivated or abandoned, forming dense
secondary vegetation of low trees & tall shrubs (“capoeira”); some areas of
“ehapada” 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 Parnaiba.
This habitat: in moist reddish-brown clay of open shore
of small temporary pond* along intermittent brook
dammed by soil fill for a trail.
23 March 1962
Sedge. Heads white when young, turning ifownish
when older,
leg. George Eiten and Liene T. Eiten, no. 3743
Distributed by the Instituto de Bot&nica, Sao Paulo
00919201