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People of the Herbarium Director: Dr. Gary J. Breckon (flora of Puerto Rico; reproductive ecology and population studies of vascular plants; study of rare and endangered plants) Curator: Jeanine Vélez Gavilán, M.S. (pteridophytes; population genetics and reproductive biology of Piperaceae) Associate investigators: Dr. Inés Sastre De Jesús (Bryophytes: Neckeraceae, Thamnobryaceae; inventory of mosses and liverworts of Puerto Rico; bryophytes as indicators of pollution; rates of dehydration and loss of water in mosses) Dr. Duane A. Kolterman (plant physiology and economic botany; study of rare and endangered plants) Fundation: 1958 Number of specimens: 25,000 Represented areas: Different geographical areas, primarily from the Caribbean (Puerto Rico, Cuba, Haiti and Dominican Republic); as well as certain South American bryophytes.