Department of Botany 



Research and Expeditions 



Dr. Margery C. Carlson, Associate in Botany, returned in Novem- 

 ber from an extended trip in Europe and the Canary Islands. She 

 visited the herbaria, botanical museums, and botanical gardens in 

 the larger cities of Europe, where she studied collections of the 

 genus Russelia (Scrophulariaceae) and prepared additions and 

 revisions for her monograph on the genus that was published in 

 1957 by the Museum. She completed her studies of the attach- 

 ment and penetration of the coffee tree by certain parasites of 

 the Loranthaceae. 



J. Francis Macbride, Curator of Peruvian Botany, completed 

 for the Flora of Peru a manuscript to equal approximately a hun- 

 dred printed pages covering the palms found in Peru, and his 

 manuscript on the families Haloragaceae through Convolvulaceae 

 was published by the Museum (see page 100). Paul C. Hutchinson, 

 of the Botanical Garden of the University of California, reported 

 on the present status of his work on the family Cactaceae for the 

 Flora of Peru and the drawings prepared under his supervision. 



Dr. Earl E. Sherff, Research Associate in Systematic Botany, 

 completed his article on Dahlia for the Encyclopaedia Britannica 

 (to be printed in the 1960 edition) and the text for Bidens (to be 

 incorporated in a Flora of West Virginia) . Dr. Rogers McVaugh, 

 Curator of Vascular Plants at the University of Michigan and Re- 

 search Associate in the Museum's Division of Vascular Plants, 

 continued work on his critical catalogue of the Sesse" and Mociiio 

 collection of Mexican plants on loan from Madrid. 



Curator Emeritus Dr. B. E. Dahlgren, with the collaboration 

 of Dr. Sidney F. Glassman of the University of Illinois (Navy Pier, 

 Chicago), continued research on the wax-palm genus Copernicia 

 and prepared the manuscript for a monograph on these plants. 

 Dr. Theodor Just, Chief Curator of Botany, continued his synop- 

 tical studies of gymnosperms and comparative studies of modern 

 and fossil angiosperm pollen, prepared several papers for publica- 

 tion (see page 104), and completed his bibliography of paleobotany, 

 which is to be published in 1960. 



Dr. C. Earle Smith, Jr., Associate Curator of Vascular Plants, 

 completed his monographic study of Cedrela for publication by the 

 Museum. He continued his preparation of a critical catalogue of 

 the Muhlenberg Herbarium (property of the American Philosoph- 



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