﻿NO. 5 SMITHSONIAN EXPLORATIONS, ig22 8l 



the herbarium of PaHsot de Beauvois, whose small volume " Essai 

 d' une nouvelle Agrostographie," published in 1812, has caused much 

 trouble for the agrostologist. because of his misunderstanding of the 

 structure of grasses. An examination of his specimens, fragmentary 

 though they are, cleared up many difficulties. At Delessert a number 



lii(;_ 82.—Raddia brasiliciisis, named by Ber- 

 toloni for Joseph Raddi in a preliminary paper. 

 Raddi himself referred the species to Olyra and 

 gave it a new species name. It is recognized 

 today as Raddia brasilieiisis. 



of grasses collected by Rafinesque in the I'nited States were also 

 found. Types of Nees, Schrader. Kunth, Willdenow, Sprengel, Link, 

 Pilger, and Alez were .studied at the herbarium of the Botanical Gar- 

 den, Berlin. 



Visits were made to the Rijks Herbarium at Leiden, and to the 

 herbarium of the Jardin Botanique d' I'Etat at Brussels. 



