PLANTS OF THE TRES MARIAS ISLANDS. 91 



This species belongs to the subgenus Eugave and the Rigidae j;roup 

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

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

 lected by me on the mainland. May 3 to 25, 1.897 (No. 4204). 



Cyperus ligularis L. 



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

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

 (No. 4330). 



Cyperus incompletus Link. 



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

 Panloum brevifolium L. 



May 3 to 25 (No. 4257). 

 Uleusine indica Gaertn. 



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

 Dactyloctenium aegyptlacum Will<l. 



May 3 to 25, 1897 (Nos. 4295 and 425G); Maria Magdalena Island, 

 May 26 to 28 (No. 4317). 



Aruudo 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 lougifoUa 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 20 and 

 28, 1897 (No. 4316). 



Adiantum concinuum H. B. K. 



Maria Madre Island, May 3 to 25, 1897 (No. 4273). 

 Adiantum tenerum Swartz. 



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

 Gymuogramme calomelanos Kauh. 



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

 (No. 4333). 



