Z CONTRIBUTIONS PROM THE NATIONAL HERBARIUM. 



1 •"• to L6, inclusive, which represent, respectively, Bromus erectus, 



It. s'w///.s, //. il ri', /,, s,s. /!. ,isj>, r. 1', si lie, I (//(/</ /it > il . and /' . 'Iiltmr. 



In the fifth edition of the same work. L754, the description, with a 

 few very insignificant changes, is the -aim- a- in the first edition, but 

 the citations of Dillenius and of Scheuchzer are omitted. 



In the first edition of Linnams's Species Plantarum, IT.'.:'., from 

 which tin 1 genus must by common acceptation date, eleven species are 

 described in the following sequence: /*'. <>ri,,<i. /•'. duriuscula, /•'. 

 mora, /'. WM€thy%tvi\a, /'. myuros^ I'. ma nt '/ ma , /■. decumoens^ I'. 

 datior, F. Jluitans^ and /'. cristata. 



Of these species /'. decumbent i> the type of the genus Sieglingia of 

 Bernhardt; F 7 . JJuitans is Panicularia fluitans Kuntze, and 1\ cristata 

 is the type ^\' the genus Koeleria of Persoon. 



The remaining species are generally included by authors in the genus 

 Pestuca, so that whether we accept the first species, F. ovina, as the 

 type of the ovnn>. or follow the historic method of residues, the result 

 in this genus is practically the same. 



Numerous other genera have, however, been proposed for species 

 usually included in. or tir-t referred to. Festuca. Chronoloofically con- 

 sidered these are as follow-: 



Vulpia Gmel. Fl. Bad. 1: 8. L805. 



Only one species included, I . myuros (Festuca myuros L.). 



Schedouorus Beauv. Agrost. 99. 1812. (Spelled "Schenodorus" in the index of 

 tin- Bame work. 



Based on seven species, of which the first is Festuca datior L. 

 Beauvois' plate also seems to be of this species, hut if s () it is very 



faulty. 



Sclerochloa Beauv. Agrost. 97, 177. L812. 



Based on Poadura L., Poa procumbem Schreb., and Poa di va/ricata 

 Beauv., all of which are rvomina nuda, though " Poa dura L." (Oyno- 

 8uru8 durus Li.) is evidently an error for Poa dura Scop. Beauvois 

 figures S. dura. 



Technically, perhaps, Sclerochloa is not published by Beauvois, in 

 which view the genus would date from Beauvois in Reichenbach, [cones 

 Florae German icae 1: 23. 1834, where the first species Is likewise 

 S. dura. 



This genus is generally accepted. 



Tragus Panzer, Denkschr. Acad. Munch. 1813: 296. 1814. 



Nine specie- were included by the author, none of which are figured. 



The first in position is 1\ ,l<it'i<>r (Festuca elatior L.). 

 There is an older Tragus of Haller. L7»'.s. 



