34 BULLETIN 193. UNITED STATES NATIONAL MUSEUM 



9. The genus Epiphyllum and its allies. By N. L. Britton and J. N. Rose. Pp. 



255-262, 7 pis. June 6, 1913. 



10. Annona sericea and its allies. By William E. SafPord. Pp. 263-275, 3 figs., 15 



pis. Dec. 13, 1913. 



11. Nomenclature of the sapote and the sapodilla. By O. F. Cook. Pp. 277-285, 2 pis. 



Dec. 13, 1913. 



12. A monograph of the Hauyeae and Gongylocarpeae, tribes of the Onagraceae. 



By John Donnell Smith and J. N. Rose. Pp. 287-298, 10 figs. Aug. 23, 1913. 



13. Botrychium virginianum and its forms. By Ivar Tidestrom. Pp. 299-303, 1 pi. 



Dec. 29, 1913. 

 Sp/ienoclea zeylanica and Caperonia palustris in the southern United States. 

 By Ivar Tidestrom. Pp. 305-307, 1 pi. Dec. 29, 1913. 



14. Plant records of an expedition to Lower California. By Edward A. Goldnaan. 



Pp. 309-371, 30 pis. Feb. 10, 1916. 



Volume 17 



Systematic investigations in lichens and ferns, grasses and other phanerogams. 



Pp. i-xiv (title, advertisement, title page, note, preface, contents, and illustrations) ; 



pp. 1-625 (parts 1-8); pp. 627-647 (index); 149 figs., 54 pis. 1913-1916. 

 Part 



1. The lichen flora of southern California. By Hermann Edward Hasse. Pp. 



1-132. June 19, 1913. 



2. Studies of tropical American ferns — No. 4. By William R. Maxon. Pp. 133-179, 



7 figs., 10 pis. June 20, 1913. 



3. Mexican grasses in the United States National Herbarium. By A. S. Hitchcock. 



Pp. 181-389. July 15, 1913. 



4. Studies of tropical American ferns — No. 5. By William R. Maxon. Pp. 391-425, 



3 figs., 13 pis. Jan. 21, 1914. 



5. Studies of tropical American phanerogams — No. 1. By Paul C. Standley. Pp. 



427-458, 8 pis. Jan. 30, 1914. 



6. Tropical North American species of Panicum. By A. S. Hitchcock and Agnes 



Chase. Pp. 459-539, 139 figs. July 24, 1915. 



7. Studies of tropical American ferns — No. 6. By William R. Maxon. Pp. 541-608, 



12 pis. May 23, 1916. 



8. Branching and flowering habits of cacao and patashte. By O. F. Cook. Pp. 



609-625, 11 pis. June 28, 1916. 



Volume 18 



Systematic investigations of tropical American plants. Pp. i-xvii (title, advertise- 

 ment, title page, note, preface, contents, and illustrations) ; pp. 1-471 (parts 1-7) ; 

 pp. 473-494 (index) ; 104 figs., 106 pis. 1914-1917. 



Part 



1. Classification of the genus Annona, with descriptions of new and imperfectly 



known species. By W. E. Safford. Pp. 1-68, 75 figs., 41 pis. June 17, 1914. 



2. New or noteworthy plants from Colombia and Central America — 4. By Henry 



Pittier. Pp. 69-86, 12 figs., 15 pis. Apr. 16, 1914. 



3. Studies of tropical American phanerogams — No. 2. By Paul C. Standley. 



Pp. 87-142. Feb. 11, 1916. 



4. New or noteworthy plants from Colombia and Central America — 5. By Henry 



Pittier. Pp. 143-171, 10 figs., 24 pis. Mar. 3, 1916. 



5. Preliminary revision of the genus Inga. By Henry Pittier. Pp. 173-223, 25 pli. 



Oct. 30, 1916. 



6. New or noteworthy plants from Colombia and Central America — 6. By Henry 



Pittier. Pp. 225-259, 7 figs., 1 pi. Sept. 22, 1917. 



7. Grasses of the West Indies. By A. S. Hitchcock and Agnes Chase. Pp. 261-471. 



Sept. 1, 1917. 



Volume 19 



Flora of New Mexico. By E. O. Wooton and Paul C. Standley. Pp. 1-794. 

 June 24, 1915. 



