The Brasicaceae are represented in Peru by 27 genera and 111 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), mostly herbs. Here we recognize 34 endemic taxa in 12 genera. Two genera, Catadysia and Dactylocardamum, are also endemic to Peru. These endemic taxa are found mainly in the Very Humid and Dry Puna, and High-Andean regions, growing above 3000 m elevation. We applied IUCN categories and criteria to 31 endemic taxa. Six endemic species are known from the Peruvian park system.

The Capparaceae are represented in Peru by six genera and 48 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), mainly shrubs and low trees. Here we recognize five endemic species in three genera. These endemic species grow in the Humid Lowland Amazonian Forests and Very Humid Premontane Forests regions, between 350 and 1600 m elevation. We applied IUCN categories and criteria to three endemic species. No endemic Capparaceae have been recorded from Peru’s protected areas system.

The Geraniaceae are represented in Peru by five genera and 59 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), mainly herbs and subshrubs. Here we recognize 18 endemic species, all in the genus Geranium. These endemic taxa are found in the Very Humid and Dry Puna, and the Mesoandean regions, between 2000 and 4800 m elevation. Two endemic Geraniaceae species have been recorded to date within Peru’s protected areas.

The family Eriocaulaceae is represented in Peru by five genera and 21 species of herbaceous plants (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004). Here we recognize five endemic species in two genera. We assigned IUCN threat categories to three species. Peru’s endemic Eriocaulaceae are found in grasslands of the Humid and Dry Puna, and Humid Montane Forest regions, between 1840 and 2600 m elevation. None of these taxa have been reported to occur within the country’s protected areas network.

The presence of 40 species of plants of the Brassicaceae family grouped in 17 genera and 5 tribes is confirmed within the area of study . From the total of the species, three are considered endemic of Ancash and two are nationally endemics. Dichotomous keys for the genera and species are presented as well as distribution information for each of the species.

A total of 25 species were found in the study area grouped in 12 genera and 5 tribes. Eight species are considered additions to the flora for the department of Ancash. None of the species reported as endemic for Ancash were found. Dichotomous keys are presented for the genera and some species. A brief description and information on the ecology and distribution of each species is included as well as the exicatta.

La familia Brassicaceae es reconocida en el Perú por presentar 27 géneros y 111 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), principalmente hierbas. En este trabajo reconocemos 34 endemismos en 12 géneros. Dos géneros, Catadysia y Dactylocardamum, son también endémicos del Perú. Estos taxones endémicos se encuentran principalmente en las regiones Puna Húmeda y Seca y Altoandina, creciendo por encima de los 3000 m de altitud. Se aplicaron las categorías y criterios de la UICN a 31 taxones. Seis especies endémicas han sido registradas en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

La familia Capparaceae es reconocida en el Perú por presentar seis géneros y 48 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), principalmente arbustos y árboles bajos. En este trabajo reconocemos cinco especies endémicas en tres géneros. Las Capparaceae endémicas se encuentran en las regiones Bosques Muy Húmedos Premontanos y Bosques Húmedos Amazónicos, entre los 350 y 1600 m de altitud. Se aplicaron las categorías y criterios de la UICN a tres especies. Ninguno especie endémica se encuentra representada en el Sistema Nacional de Áreas Naturales Protegidas por el Estado.

La familia Geraniaceae es reconocida en el Perú por presentar cinco géneros y 59 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), mayormente hierbas y subarbustos. En este trabajo reconocemos 18 especies endémicas, todas en el género Geranium. Estos endemismos ocupan principalmente las regiones Puna Húmeda y Seca y Mesoandina, entre los 2000 y 4800 m de altitud. Dos Geraniaceae endémicas se encuentran representadas dentro del Sistema Nacional de Áreas Naturales Protegidas por el Estado.

La familia Eriocaulaceae es reconocida en el Perú por presentar cinco géneros y 21 especies (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), todas ellas hierbas. En este trabajo reconocemos cinco endemismos en dos géneros. Se asignó las categorías de amenaza de la UICN a tres especies. Estos taxones endémicos ocupan pajonales de las regiones de la Puna Húmeda y Seca, así como del Bosque Húmedo Montano, entre los 1840 y 2600 m de altitud. No se encuentra representada en alguna área natural protegida

The presence of 40 species of plants of the Brassicaceae family grouped in 17 genera and 5 tribes is confirmed within the area of study . From the total of the species, three are considered endemic of Ancash and two are nationally endemics. Dichotomous keys for the genera and species are presented as well as distribution information for each of the species.

A total of 25 species were found in the study area grouped in 12 genera and 5 tribes. Eight species are considered additions to the flora for the department of Ancash. None of the species reported as endemic for Ancash were found. Dichotomous keys are presented for the genera and some species. A brief description and information on the ecology and distribution of each species is included as well as the exicatta.

The Anacardiaceae are represented in Peru by 13 genera and 40 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), basically trees and shrubs. Here we recognize seven endemic species in three genera. This family includes one endemic genus, Orthopterygium. Endemic taxa are found mainly in Desert Shrubland, Mesoandean, and Very Humid Montane and Humid Lowland Amazonian Forests regions, between 125 and 2400 m elevation. No endemic Anacardiaceae have been registered to date within Peru’s protected areas system.

The Annonaceae include mainly medium to large trees, and are represented in Peru by 27 genera and 236 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004). Here we recognize 44 endemic species in 15 genera. One third of these endemic taxa were described as new to science since 1993, and about 30% only are known from a single botanical collection. Most endemic Annonaceae are found in Very Humid Premontane and Humid Lowland Amazonian Forest regions, between 125 and 2400 m elevation. Ten species are represented within Peru’s protected areas system.

The Apiaceae are represented in Peru by 29 genera and 88 species (Brako & Zarucchi, 1993), basically herbs and fruticose plants. Here we recognize 22 endemic taxa in seven genera. One genus, Paraselinum, is endemic to Peru. Most endemic Apiaceae are found in the Subtropical Costal Desert, Mesoandean and Very Humid Montane Forest regions, between 10 and 4400 m elevation. None of the species have been reported from Peru’s protected areas system.

The Apocynaceae are represented in Peru by 37 genera and 158 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), basically vines and lianas. Here we recognize 14 endemic species in 10 genera. The endemic taxa are found in several ecological regions, mainly the Very Humid Montane, Premontane and Humid Lowland Amazonian Forest regions, between 130 and 3000 m elevation. We applied IUCN categories and criteria to eight species. Only one endemic Apocynaceae is represented within Peru’s protected areas system.

The Begoniaceae are represented in the Peruvian flora by 76 species in the genus Begonia (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), most of them herbs. Here we recognize 38 endemic taxa. We applied IUCN categories and criteria to ten of them. Most of these endemic taxa are found in Humid Lowland Amazonian Forests and Humid Montane and Premontane Forest regions, between 400 and 2500 m elevation. Only one species has been recorded to date within Peru’s protected areas system.

The Chenopodiaceae is represented in Peru by four genera and 20 species (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), all of them herbs and shrubs. Here we recognize one endemic species in Atriplex. This endemic species grows in the Tropical Costal Desert, Subtropical Costal Desert and Desert Shrubland regions, from sea level to 1150 m elevation. This endemic species is not found within Peru’s protected area system.

This family is a recent addition to the endemic Peruvian flora. The Dichapetalaceae are represented in Peru by three genera and 16 species (Brako & Zarucchi, 1993) mostly trees and lianas. Here we recognize one endemic species in the genus Tapura. This endemic species grows in the Humid Lowland Amazonian Forests region at 250 m elevation. It has not yet been recorded in Peru´s protected areas system.

The Erythroxylaceae are represented in Peru by 27 species in the genus Erythroxylum (Brako & Zarucchi, 1993; Ulloa Ulloa et al., 2004), all shrubs and trees. Here we recognize four endemic species, which are found in the Tropical Costal Desert and Humid Lowland Amazonian Forests regions, between 150 and 720 m elevation. No endemic Erythroxylaceae have been recorded within Peru’s protected areas system.