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SANTA CRUZ CERVERA, Lázaro et al. Vascular Flora from Mangomarca lomas, San Juan de Lurigancho, Lima, Peru. Arnaldoa [online]. 2020, vol.27, n.3, pp.649-674. ISSN 1815-8242.

The coastal lomas are ecosystems included in the Pacific desert ecoregion, are seasonal and depend on thermal inversion in the winter of the southern hemisphere. The study on the vascular flora of the Mangomarca lomas, San Juan de Lurigancho is presented, in order to record and explain this formation that is located in the Mangomarca hills, from 80 to 800 m altitude and coordinates 11°59’51”-12°00’S; 76°58’30”-76°58’02”W, near the center of Metropolitan Lima. The evaluations were carried out during the winters of 2011-2019. 25 vascular plant families with 44 genera and 51 species were registered; families with the largest number of species; Asteraceae with nine species followed by Solanaceae with eigth species and Amaranthaceae with four species; Magnoliopsidae is the dominant group with 47 species, 40 genus and 22 families. The registered forms of growth are: herbs 33 species, shrubs 13 species, trees and, succulent two species each and climbing one species. 9 endemic species were recorded: Atriplex rotundifolia (Amaranthaceae), Ismene amancaes, (Amaryllidaceae), Ophryosporus pubescens (Asteraceae), Haageocereus limensis (Cactaceae), Cistanthe paniculata (Montiaceae), Oxalis lomana (Oxalidaceae), Nolana humifusa, Nicotiana paniculata y Exodecomus prostratus (Solanaceae). The Lomas de Mangomarca are threatened by the anthropic pressure of human settlements of Campoy and Los Jardines in San Juan de Lurigancho that have reached the top on both flanks, which are affected by solid waste and accompanying fauna.

Keywords : Lomas; Mangomarca; lomal system endemism; anthropic pressure.

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