Chamaecrista acosmifolia (Mart. ex Benth.) H.S.Irwin & Barneby var. acosmifolia

• Region

  South America

• Country

  Brazil

• State/Province

  Maranhão

• County/Municipio

  Loreto Mun.

• Locality

  "Ilha de Balsas" region, between the Rios Balsas and Parnaíba. About 35 km south of Lorêto. Ca. 2/3 km S of main house of Fazenda "Morros", along the brook gully, "Grota Grande"

• Coordinates

  -7.38, -45.07

• Distribution

  Map all specimens of this taxon

New York Botanical Garden
Revision of Cassia, Sect. Absus
Cassia acosmifolia Mart, var. acosmifolia
H. S. Irwin & R.C. Barneby	197U
Mibm ' ' ^ ^ |
FLORA OF BRAZIL	2 ©f 3 parts
STATE OF MARANHÄO
Municipio de Loreto: “Ilha de Balsas” region, between the Rios
Balsas and Parnaiba. **2/3 km S of main house of Fazenda
“Morros”, about 35 km. south of LORETO. Alt. ca. 300 m.
Ca. 7° 23 ’S., 45° 4 ’W.
Main vegetation types of region: (1) “chapada”, a semi-closed tree woodland (or
“cerradfio”) on flat tops & steep sides of plateaus, <n rttipnMHy Iwii, and on
some areas of roUing or flat dry land; (?) “tabulelro”, 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 “tabulelro’’-covered hills; (5) “var-
jao”, low nioiSt flat land with scattered forest trees of one of a few species;
(6) “cocai”, thick groves of babagu palm on flat river plain of Bio Parnaiba and
~ some of its tributary streams. faiSOtvegetation types completely deciduous during
dry season. All brooks intermittent. Annual ground fired and cattle grazing in
all areas. Part of “tabulelro” cut over, forming treeless grassy areas; most
“mata” and much “caatinga” & “varjao” cultivated or abandoned, forming dense
secondary vegetation of low trees & tall shrubs (“capoeira”); some areas at
“chapada” with dense secondary vegetation (“carrasco”). Upland soils grayish,
tan, or light reddish brown silt or silty clay, very stony on slopes; lowland soil*
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 Bio Parnaiba.
This habitat: in shad* ©f gallery ferest aleng the
brook ravin«, «Greta Grand«". 2A April 1962
Viney shrub to 2 m. tall. P«tals golden-yellew.
Specimen (th« whele length ef on« plant) is pressed
with its two fertile branches$ the ether branch«»,
*||ich are sterile, have been cut away.
leg. George Eiten and Liene T. Eiten, no. 43&3
Distributed by the Institute de Bot&nica, Säo Pa\ilo
00959812