New species and new records of plants in Guiana

For several years, The New York Botanical Garden has conducted a study of vegetation overlying certain ferruginous areas principally in Venezuela. During the winter of 1954-55, field work was organized to continue reconnaissance of plant-cover growing on iron-cap or ore-bodies in northeastern Brazil, French Guiana, Suriname, and British Guiana. In addition to studies in iron-bearing localities, observations and some statistical studies were made on manganiferous and bauxitic deposits in the region of Guiana. Dr. Cowan spent the period October-March in the field. We were together for the first three weeks, and again in the fore-part of January. Dr. Jan C. Lindeman of Utrecht accompanied Dr. Cowan for two weeks to Nassau-gebergte in Suriname. Independently I visited Nassau Mountains and Moengo for three weeks in March.