Contributions 17 



Part 1. "Diagnostic Characteristics of the Fruits and Florets of Economic 



Species of North Amencnn Sporobolus,'" by Vera Lyola Colbry. Pages iii+24, 



2 figures, 4 plates. 17 December 1957. 

 Part 2. "The Woods and Flora of the Florida Keys: Capparaceae," by William 



L. Stern, George K. Brizicky, and Francisco N. Tamolang. Pages 25-43, 7 



plates. 4 November 1963. 

 Part 3. "Systematic Anatomy and Ontogeny of the Stem in Passifloraceae," by 



Edward S. Ayensu and William L. Stern. Pages 45-74, 12 plates. 21 August 



1964. 

 Part 4. "Taxonomic Study of Subgenus Podosemum and Section Epicampes of 



Muhlenbergia (Gramineae)," by Thomas R. Soderstrom. Pages 75-189, 14 



plates, 9 figures. 19 July 1967. 

 Part 5. "The Genus Melochia L. (Sterculiaceae)," by Aaron Goldberg. Pages 



191-363, 9 plates, 7 figures. 31 August 1967. 

 Part 6. "Mexican 'Cacalioid' Genera Allied to Senecio (Compositae)," by 



Richard W. Pippin. Pages 365-447, 10 plates, 4 figures. 17 May 1968. 

 Part 7. "The Lichen Genera Cetrelia and Platismatia (ParmeUaceae)," by 



William Louis Culberson and Chicita F. Culberson. Pages i— iv+449— 558, 25 



plates, 31 figures. 10 July 1968. 



Volume 35 



Systematic Plant Studies. Title page and table of contents. Pages i-iv. 2 



October 1970. 

 Part 1 . "Supplemental Notes on the American Species of Passifloraceae with 



Descripfions of New Species," by Ellsworth P. Killip. ii+23 pages, 11 plates. 



10 May 1960. 

 Part 2. "A Taxonomic Revision of the Humiriaceae," by Jose Cuatrecasas. 



Pages iii+25-214, 38 figures, 24 plates. 14 April 1961. 

 Part 3. "Origins of the Flora of Southern Brazil," by Lyman B. Smith. Pages 



viii+2 15-249, 42 figures, 4 plates. 19 March 1962. 

 Part 4. "A Synopsis of the American Veil ozi ace ae," by Lyman B. Smith. Pages 



251-292, 12 plates. 19 March 1962. 

 Part 5. "Synopsis of the South American Species of Vismia (Gutfiferae)," by 



Joseph Ewan. Pages 293-377, 7 plates. 5 June 1962. 

 Part 6. "Cacao and Its Allies, a Taxonomic Revision of the Genus Theobroma," 



by Jose Cuatrecasas. Pages 379-614, 12 plates, 44 figures. 21 August 1964. 



Volume 36 



Lichens/Algae. Title page and table of contents. Pages i-iv. 2 October 1970. 

 Part 1 . "A Revision of the South American Species ofParmelia Determined by 

 Lynge," by Mason E. Hale, Jr. 41 pages, 5 plates. 18 May 1960. 



