CONTRIBUTIONS, NATIONAL HERBARIUM 5 



Volume 31 



The Acanthaceae of Colombia. By Emery C. Leouard. Pp. v (title page, 



advertisement, contents) + 781 (parts 1-3), 274 figs. 1951-1958. 

 Part 



1. The Acanthaceae of Colombia, I. By Emery C. Leonard. 8vo, pp. vi + 



1-117, figs. 1-40. June 8, 1951. 



2. The Acanthaceae of Colombia, II. By Emery C. Leonard. 8vo, pp. viii + 



119-322, figs. 41-118. November 10, 1953. ' 



3. The Acanthaceae of Colombia, III. By Emery C. Leonard. 8vo, pp. x -\- 



323-781, figs. 119-274. February 4, 1958. 



Volume 32 



[Volume in progress.] 

 Part 



1. The American species of Aeschynomene, by Velva E. Rudd. 8vo, pp. iv + 



1-172, 10 figs. October 13, 1955. 



2. A revision of the genus Nissolia. By Velva E. Rudd. 8vo, pp. iv + 173-206, 



10 figs. November 7, 1956. 



3. A revision of the genus Chaetocalyx. By Velva E. Rudd. 8vo, pp. iii + 207- 



245, 13 figs. February 6, 1958. 



Volume 33 



The Bromeliaceae of Colombia. By Lyman B. Smith (illustrations by Robert 

 J. Downs). 8vo, pp. viii + 311, 88 figs. December 24, 1957. 



Volume 34 



[Volume in progress.] 

 Part 



1. Diagnostic characteristics of the fruits and florets of economic species of North 

 American Sporobolus. By Vera Lyola Colbry. 8vo, pp. iv + 1-24, 2 figs., 

 4 pis. December 18, 1957. 



457717— 5J 



