Tephrosia leptostachya DC.

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Loreto Mun.

• Locality

  "Ilha de Balsas" region, between the Rios Balsas and Parnaíba. About 5 1/2 km. south of Loreto. Ca. 3 1/2 km. S of Rio Balsas on trail to Fazenda Aldeia.

• Elevation

  Alt. 200 m. (656 ft.)

• Coordinates

  -7.13, -45.12

• Distribution

  Map all specimens of this taxon

FLORA OP BRAZIL
STATE OF MARANHÄO
#
Tephrosia leptostachya DC*
Det: H. S. Irwin, 1966
Municipio de Loreto: “Ilha de Balsas” region, between the
Rios Balsas and Pamaiba. About 5 l/2 kM south of LORfiTO.
e*.7° 8's., «°7-8’w. Ca, 3 1/2 kn S of Bio Balaa» on trail
to flaaoada ildoia, Alt. oa. .200 m. . U tell 1462
Main vegetation types of region; (1) “chapada”, a semi-closed tree woodland (or
“cerrad&o”) on flat tops & steep sides of plateaus,	and on
some areas of rolling or flat d17 land; (2) “tabuleiro”, a semi-closed woodland,
or “cerrad&o”, of different physiognomy & species composition, on tops of hilly
or gently rolling land; (>) “mata”, a closed tropical forest of many tree species,
visually 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 and in narrow valleys between “tabuleiro”-fcovered 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.M 4Hiregetation types completely deciduous during
dry season. All brooks intermittent! Annual ground fires and cattle grassing in
all areas. Fart 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 (“capoelra”); 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
stonew. Country rock horizontal light brown sandstone, exposed only on tops
of morros and on cliffs along the Bio Pamaiba.
This habitat: tptii rocky Irispofadboi hill alopq|+
•Morraria" vegetation, 4 variation of "tabuleiro".
Flower face 7 mm. tall, standard 8 mm. wide.
leg. George Eiten and Uene T. Eiten, no. 4261
Distributed by the Institute de Bot&nlca, S&o Paulo
01048163