50 Proceedings of the Biological Society of Washington. 



A rather rare tropical American species, known in the West Indies 

 previously from Trinidad, Guadeloupe, Jamaica, and Cuba. From its 

 diminutive habit and its growth in thick tufts of moss it is readily over- 

 looked. 



Elaphoglossum herminieri (Bory & F6e) Urban. 



Near Laguna, Samand. Peninsula (434). 



A strikingly distinct species, which, in the writer's experience, is nowhere 

 very common. It is, however, widely distributed in the West Indies. 



Adiantopsis radiata (L.) F6e. 



Cotuy, Provincia de la Vega; sea level to 300 meters altitude (823). 



Polypodium costatum Kunze. 



Near Sanchez, Samand. Peninsula; sea level to 300 meters altitude (135). 

 Pil6n de Azucar, near Laguna, Samand Peninsula; altitude 300 to 500 

 meters (282). Villa Riva (Almac6n), Provincia Pacificador; sea level to 

 100 meters altitude (570). 



Polypodium shaferi Maxon. 



Summit of Pil6n de Azucar, near Laguna, Samand Peninsula; altitude 

 500 meters; December 18, 1920 (291a). 



Known previously only upon two collections from eastern Cuba, Shafer 

 8071 (the type) and Shafer 3475. It is allied to P. mitchellae Baker, of 

 Central America and Panama.' 



Polypodium harrisii Jenman. 



Near summit of Pil6n de Aziicar, near Laguna, Samand. Peninsula; alti- 

 tude 450 to 500 meters; December 26, 1920 (437, 442). 



Known previously only upon a few specimens from Jamaica, where it is 

 very rare. 



Pleurogramme seminuda (Willd.) J. Sm. 



Pil6n de Aziicar, near Laguna, Samand Peninsula; altitude 300 to 500 

 meters (436). 



Asplenium integerrimum Spreng. 



Old Heart River (Jato Viejo), Samand Peninsula; altitude 300 meters 

 (1336). 



This species, now well known from Porto Rico and Cuba, has not 

 previously been reported from Hispaniola, so far as the writer is aware. ^ 



Asplenium cirrhatum Rich. 



Old Heart River (Jato Viejo), Samand Peninsula; altitude 300 meters 

 (1384). 



Nearly the typical form of this species, described originally from Guade- 

 loupe. 



iSee Contr. U. S. Nat. Herb. 17: 410, pi. IS. B, pi. 14- 1914; also, 17: 548, 549. 1916. 

 2SeeContr. U. S. Nat. Herb. 10: 477.478. 1908. 



