1889.] NEW-YORK MICROSCOPICAL SOCIETY. Ill 



fibrosa ? ; spica lanceolata, angusta, acutata, castanea, i 

 cm. longa, 2 mm. lata ; squamis ovatis, obtusis, subcari- 

 natis, apiculatis, margine hyalinis ; achenio elliptico, tri- 

 gone, Isevi, nitido, cum tuberculis i mm. longo ; tuber- 

 culis angustis, calyptratis, rostratis ; setis circiter 4, 

 albidis, achenium aequantibus. 



Agua Caliente, San Diego Co., Cal., S. B. Parish, April, 1882, 

 No. 1569. 



The material is insufficient for a positive assertion that this 

 has always fibrous roots. Mr. Parish has very obligingly divided 

 his only specimen with me and until the plant is again collected 

 its further characters must remain uncertain. 

 40. E. GENicuLATA (L.), Roem. and Schult. Syst. ii. 224 (181 7). 

 E. densa, Benth. PI. Hartw. 27 (1839). A terete-stemmed 

 variety. 



Mexico, Mueller, 1762; Guatemala, Coban, Tuerckheim, 544 ; 

 Panama, Dr. J. M. Bigelow. 



Widely distributed in tropical America, probably not reach- 

 ing the United States. 



