JOHNSTON: FLORA OF MARGARITA ISLAND. 177 



After the citation of Venezuelan plants, I have given reference to 

 the occurrence of the species in Porto Rico as found in Urban's Flora 

 portoricensis. These citations are based upon Professor Urban's 

 comparison of my plants with his so that the distribution of the plants 

 in these two localities is made certain. The last note after a species 

 is in regard to its general distribution. 



The arrangement of the families is as in Engler and Prantl's Pflan- 

 zenfamilien, and the genera and species are alphabetically arranged 

 in their respective groups. 



While it is to be regretted that each species could not be subjected 

 to the critical examination of a specialist it is to be hoped that this list 

 in connection with the distributed plants may be of value in future 

 work upon the flora of Venezuela. 



PTERIDOPHYTA} 

 GLEICHENIACEAE. 



DiCRANOPTERis Bernh. 



D. FLEXUOSA (Schrad.) Underw., Bull. Torr. bot. club, vol. 34, p. 

 254 (1907). Mertensia flexuosa Schrad., Goett. Anz., p. 863 (1824). 

 M. rigida Kunze, Linnaea, vol. 9, p. 16 (1834). Gleichenia flexuosa 

 Mett., Ann. Lug. Bat., vol. 1, p. 50 (1863). G. rigida Bommer & 

 Christ, Bull. soc. bot. Belg., vol. 35, p. 174 (1896).— San Juan Mt., 

 alt. 700 m., July 16, Johnston, no. 180. Tropical America. 



CYATHEACEAE. 



Cyathea Sm. 



C. TENERA (J. Sm.) Hook, ex Moore, Ind. Fil., p. 274 (1861). 

 Alsophila tenera J. Sm., Lond. Journ. bot., vol. 1, p. 666 (1842), 

 nomen nudum. A. tenera J. Sm. ex Hook., Sp. Fil., vol. 1, p. 49 

 (1846). — Rio Asuncion, alt. 450 m., Johnston, no. 143, July 29. 

 Also on Trinidad and several of the West Indies. 



Hemitelia R. Br. 



H. grandifolia (AVilld.) Spreng. Syst., vol. 4, p. 125 (1827). 

 Cyathea grandifolia Willd., Sp. pL, vol. 5, p. 490 (1810).— El Valle, 



1 The identifications in this group are as revised by Mr. W. R. Maxon, who has also 

 added the synonymy and the notes in regard to the species. 



