40 Annals of the Carnegie Museum. 



0. E. Jennings, No. 243. General Distribution; On earth and on 

 rotten wood in moist woods of eastern North America from New 

 York southwards to the West Indies. 



PTERIDOPHYTA. 



(Ferns and Fern Allies.) 



Family HYMENOPHYLLACEiE. (Filmy Ferns.) 



27. Trichomanes pinnatum Hedwig. 



Trichomanes pinnatum Hedwig, Filicum Genera et Species, Fascicle I, I799. P- 16, 



PI. 4, fig- I- 

 Neurophyllum pinnatum Presl, Hymenophyllacese, 1843, p. 19, PI. 4, fig. C. 



Near Nueva Gerona, January 28, 1904, A. H. Curtiss, No. 317. 



General Distribution: Quite commonly found all over the West 



.Indies and continental tropical America. 



28. Trichomanes sp. 

 Along edge of arroyo in pine-barrens east of Los Indios, May 18, 

 1910, 0. E. Jennings, No. 370; bank of Majagua River near Los 

 Indios, May 19, 1910, 0. E. Jennings, No. 398. 



Family CYATHEACE^. (Tree Ferns.) 



29. Alsophila myosuroides Liebmann. 



Alsophila myosuroides Liebmann, Kgl. Danske Videnskabernes Selskabs Afhand- 



linger, Ser. V. I, 1849, p. 286. 

 Alsophila Wrightii Underwood. (Herbarium name not published). 



Near Nueva Gerona, February 15, 1904, A. H. Curtiss, No. 346; 

 Dr. J. F. Shafer, February-March, 1910, near Sante Fe, on bank 

 of arroyo about one and one-half miles south of Nueva Gerona, 

 May 12, 1910, 0. E. Jennings, No. 222. General Distribution: The 

 Isle of Pines and Mexico. 



Family SCHIZEACE^. 



30. Lygodium venustum Swartz. 



Lygodium venustum Swartz, in Schrader, Journal fiir die Botanik, 1801, (2), p. 503. 



Near Nueva Gerona, January 6, 1904, A. H. Curtiss, No. 275. 



General Distribution: West Indies (not common), and from Mexico 



through continental tropical America to Brazil and Peru. 



Leaves thin, the sterile portions of the tertiary segments distinctly 

 crenate-serrate to incised below. 



