Microstachys corniculata (Vahl) Griseb.

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Lorêto Mun.

• Locality

  About 40 Km south of Lorêto in the "Ilha das Balsas" region, between the Rio das Balsas and Parnaíba. At place called "Picada", about 100 m S of the creek, "Riacho da Picada"

• Elevation

  Alt. 250 m. (820 ft.)

• Coordinates

  -7.43, -45.12

• Distribution

  Map all specimens of this taxon

The New York Botanical Garden
Euphorbiaceae
Microstachys corniculata (Vahl) Griseb.
G. Eiten 3843	¡
FLORA OF BRAZIL
STATE OF MARANHAO
Sebastians corniculata (Vahl) Muell.Arg*
(da t. L,B . Sraith ,1965)
Municipio, de Loreto: “Ilha de Balsas” region, between the
Rios Balsas and Parnaiba. About J+0 km* south of LORETO.
Ca .7° 26 ’S., 45° 7 *w. At place called «Picada», about 100
m. S of the creek, "Riacho da Picada". Alt.ca. 250 m
Main vegetation types of region: (1) “chapada”, a semi-closed tree woodland (or
“cerradSo") on flat tops & steep sides of plateaus, <tnp Mlly ? innd, and on
some areas of rolling or flat dry land; (2) “tabuleiro”, a semi-closed woodland,
or “cerradfto”, 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-
j&o”, 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 Rio Parnaiba and
some of its tributary streams ajlUvegetati on types completely deciduous during
dry season. All brooks intermittent. Annual ground flrea 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 Parnaiba.
This habitat: open spot in cat-over transition between
narrow lov-tree gallery forest (along brook ravine) and
"chapada”. Base of gentle slope of side of low
plateau where it joins creek plain* 26 March 1962
Herb. Flowers greenish-white.
leg. George Eiten and Liene T. Eiten, no. 384-3
Distributed by the Instituto de Botànica, Sao Paulo
01075465