PLANTS OP THE TRES MARIAS ISLANDS. 91 



This species belongs to the subgenus Eugave and the Rigidae group 

 of Mr. Baker's revision. It is near A. vivipara, and perhaps not dis- 

 tinct. Mr. Nelson's plant does not seem to differ from specimens col- 

 lected by me on the mainland. May 3 to 25, 1897 (No. 4264). 

 Cyperus ligularis L. 



Keported from Mexico, Central and South America, and West Indies, 

 as well as Africa and Australia. Maria Oleofa Island, May 30, 1897 

 (No. 4330). 

 Cyperus incompletus Link. 



Eeported from Mexico and Brazil. May 3 to 25, 1897 (No. 4259). 

 Panicum brevifolium L. 



May 3 to 25 (No. 4257). 

 Eleusiiie indica Gaertu. 



May 3 to 25, 1897 (No. 4305). 

 Dactyloctenium aegyptiacum Willd. 



May 3 to 25, 1897 (Nos. 4295 and 4256); Maria Magdalena Island, 

 May 26 to 28 (No. 4317). 



Arundo donax L. 



Maria Cleofa Island, May 30 (No. 4332). 

 Zamia loddigesii ( f ) Miq. 



Reported from Mexico. Maria Cleofa Island, May 30, 1897 (No. 4329). 

 Pteiis longifolia L. 



Maria Madre Island, May 3 to 25, 1897 (No. 4201). 

 Aspidium trifoliatum Swartz. 



Maria Madre Island, May 3 to 25, 1897 (No. 4280). 

 Aspidium patens Swartz. 



A widely distributed species. Maria Magdalena Island, May 26 and 

 28, 1897 (No. 4316). 

 Adian turn concinnum H. B. K. 



Maria Madre Island, May 3 to 25, 1397 (No. 4273). 

 Adiantum tenerum Swartz. 



Maria Madre Island, May 3 to 25, 1897 (No. 4281). 

 Gymnogramme calomelanos Kaulr. 



A widely distributed species. Maria Cleofa Island, May 30, 1897 

 (No. 4333). 



