GRASSES IN CERTAIN PLACES. 73 



The sheets of till tlie species of the same genus, when not too 

 numerous, or of a section of it, shoukl he placed in a genus-cover 

 which consists of a folded sheet of firm manilla paper, 12 by 17 

 inches. The generic name should appear on the cover at the 

 lower left hand corner after it is folded, with the folded portion 

 to the left. 



The sheets are jilaced on the sides in pigeon holes, arranged in 

 the order as treated or described in our standard books. Begin 

 with the first genus at the upper left hand pigeon hole and go 

 downward to the bottom of the case, then begin at the top of the 

 next column of i^igeon holes. 



"W'hen a sheet of the herbarium is wanted for study, open the 

 door, find the name on the genus-cover and draw out for a 

 few inches the one needed with all above it in the same hole, 

 then remove the genus cover needed, leaving those above in the 

 position described, to show at a glance just where to replace the 

 specimens. 



Grasses found in certain Localities. — The following grouping 

 of the grasses is founded on their habits and localities, and will 

 hardly rank as a classification. It is essentially the one proposed 

 in a 2)rize essay by Prof. James Buckman. — (Jour. Eoyal Agrl. 

 Soc. 1854.) 



1. Jungle or Bush Grasses are those which generally grow 

 isolated, in bunches or a few plants here and there. The bam- 

 boos are examj)les for the tropics. In the northern countries 

 many of the smaller grasses have a similar disposition of growing 

 in tufts; of this kind we have Descliampsia (Aira) ccespitosa, L. 

 (hair grass). Arena jiratensis (Narrow-leaved Oat-grass). Festuca 

 elatior, L. (Taller Fescue). 



A few others, if sown alone and not very thick, not closely fed 

 or rolled, will assume the same habit. Of such we have Festuca 

 ovina, L. (Sheep's Fescue), Festuca duriuscula, L. (Hard Fescue), 

 Dactylis glomerata, L. (Cocksfoot or orchard grass.) 

 10 



