Flórula fanerógama das restingas do estado do Pará. ilhas de Algodoal e Maiandeua. família moraceae lindl.

Abstract

Raimundo Heberth Gomes do Canto In the state of Pará, the municipalities that are influenced by the Atlantic Ocean make up the "salty physiographic zone". This zone presents different ecosystems, such as fields, forests, mangroves and restingas, all of which have been little studied from a botanical point of view. The sandbanks of Algodoal and Maiandeua are composed of some plant formations, where several families of plants are distributed, among them the Moraceae Lindl. which is the object of this study. The objective of this work is to survey the Moraceae family, its distribution in the mentioned sandbank and to make the taxonomic treatment of its species, elaborating taxonomic keys to facilitate their identification and taxonomic descriptions. The methodology used in this work is the one commonly used in plant taxonomy. In Brazil the Moraceae Lindl. family is represented by 28 genera and about 340 species. On the sandbanks of the islands of Algodoal and Maiandeua, which have a very diversified vegetation, there is only the genus Ficus Linn, Ficus catapaefoilia Keunth & Bouché, trees 5 m high, simple leaves, alternate, petiolate, pubescent; limb 10 to 17 cm long and 4.5 to 7 cm wide, leaf blade subobovate to oblong, cordate base and obtuse apex; sessile axillary syconium, with basal bracts and prominent ostioles. It is located in the restinga forest formation. Ficus guianensis Desv. 6 m high trees, simple leaves, alternate, petiolate, peninérvea; limb 7 to 16 cm long and 3 to 6 in width, lanceolate, acuminate apex and obtuse base; axillary syconium, with basal bracts, prominent ostioles, pedunculate. Found on dunes. Ficus amazonica Mig. trees up to 6 m tall, simple leaves, alternate petiolate, peninnate; limb 7 to 16 in long and 4 to 7 in wide, oblong, acuminate apex, obtuse base; pedunculate, axillary syconium with basal bracts and prominent ostioles. occur over the dunes. The preservation of these species on site is very important in the stability of the dunes, since they help in their fixation.