Maxon — Notes on Ferns from Dominican Republic. 49 



Lygodium oligostachyum (Willd.) Desv. 



Near Sdnchez, Samand Peninsula; sea level to 300 meters altitude 

 (1123a). Near Samand, Samand Peninsula; sea level to 200 meters alti- 

 tude (1223). Puerto Plata, in ravine by waterfall (1459). 



A remarkable and interesting little plant, originally figured by Plumier 

 from specimens collected near Lake Miragoan, Haiti, and described by 

 Willdenow as Hydroglossum oligostachyum. It is known only from His- 

 paniola. In addition to the specimens cited above, the following are at 

 hand from the Dominican Republic: Wright, Parry, and Brummel 1, 

 Taylor 247, Eggers 2536 (described by Baker as a new species, Lygodium 

 gracile), Fuertes 376, and Tiirckheim 2649. The last two numbers were 

 distributed as Lygodium cubense H. B. K., a very common and much 

 coarser plant endemic to Cuba. 



CYATHEACEAE. 

 Alsophila aquilina Christ. 



Pil6n de Aziicar, near Laguna, Samand, Peninsula, at 300 to 480 meters 

 altitude (274, 292, 445). Cotuy, Provincia de la Vega; sea level to 300 

 meters altitude (747, 747a). 



These specimens and two other plants from the Dominican Republic 

 (Wright, Parry, & Brummel 26, 34) are referred tentatively to this species, 

 described originally from Oriente Province, Cuba, where it is abundant. 

 Similar material is at hand also from Porto Rico. All are characterized 

 by having striped stipe scales, in this respect (as in others) differing from a 

 similar group of forms from Jamaica, Cuba, and Porto Rico which have 

 bright concolorous scales. The two groups have been confused, and both 

 have been called Alsophila aspera (L.) R. Br. The typification of A. 

 aspera and the segregation of related forms is deferred to a separate paper. 



Alsophila pungens (Willd.) Kaulf. 



Near Laguna, Samand Peninsula, chiefly on the Pil6n de Aziicar; altitude 

 100 to 500 meters (347, 411, 424). Villa Riva (Almac^n), Provincia Pacifi- 

 cador; sea level to 100 meters altitude (611). Old Heart River (Jato 

 Viejo), Samand Peninsula; altitude about 300 meters (1337, 1409). 



Further specimens from Hispaniola, both in the herbarium of the New 

 York Botanical Garden, are as follows: Plaisance, Haiti, altitude 600 

 meters, Nash 887; near Barahona, Dominican Republic, altitude 480 

 meters, Tiirckheim 2797. Described originally from "Brazil." 



POLYPODIACEAE. 

 Anetium citrifolium (L.) Splitg. 



Near Laguna, Samand Peninsula; trunks of forest trees (257). 



Widely distributed in the West Indies and tropical America generally, 

 but apparently not previously reported from Hispaniola. 



Hecistopteris pumila (Spreng.) J. Sm. 



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

 meters (1399). 



