32 MISSOURI BOTANICAL GARDEN 





Society, from whom it was purchased by the British Museum 



i 



at a sale of the Society's Surplus Collections. 



The herbarium suffered before it came into the pos- 

 session of the Museum and many of Walter's types are 

 missing, especially among the grasses. The plants are 

 mounted in a large book, usually several specimens on a 

 page, the labels being fastened to each plant. The speci- 

 mens are for the most part very fragmentary, often con- 

 sistinjj of a leaf or an inflorescence. When the herbarium 

 was obtained by the Museum, most of the plants were 

 mounted, but a few were loose and have been subsequently 

 mounted at the end, following the others. All the grasses 



— — D 



appear in this second part (pp. 112 et seq.). There are 

 18 specimens of the grasses. In the following notes I 

 have attempted to identify the species of grasses published 

 by Walter in his Flora, considering the specimens in his 

 herbarium, the descriptions, which are often meager, and 

 tradition as shown by the disposition made of his species 

 by Michaux, Pursh, and Elliott, who worked over the 

 same territory and must have been familiar with Walter's 

 work. 



Walter seems to have followed in his identifications the 

 second edition of Linnaeus' Species Plantarum or the 

 twelfth edition of the Systema, which is about the same. 

 The use of italics for certain specific names is not quite 

 clear. Those thus printed appear to be new species, but 

 many of those printed in Roman are also new names. 

 Many of Walter's names as applied to grasses are yet 

 doubtfully identified or entirely unidentified and probably 

 must remain so. 



MONANDRIA. DIGYNIA. 



[P. 59] 2. Cinna. Cal. gluma 2-valvis, 1-flora. Cor. gluma 



2-valvis. Sem. 1. 



* See note in Journ. Bot. 37 : ±85. 1899. 



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