PROCEEDINGS 



OF THE 



STATEN ISLAND ASSOCIATION^''^- 23 1917 



OF 



ARTS AND SCIENCES 



Vol. VI October 1915-jANUARY 1916 Part 1, p. 67-1 11 



Additional Notes on the Botany of the Silver Lake Basin^ 



Arthur Hollick 



(with plate i) 



At our meeting of October 17, 1914, I described and discussed 

 the general characters of the vegetation that had taken possession 

 of the drained bottom of Silver Lake during the first year of its 

 exposure as a land area. (See Proc. Staten Is. Assoc. 5: 60- 

 65, pi. 2-5). On October 14 of this year another series of 

 botanical specimens was collected in order to determine what 

 species had continued to exist and what new ones had become 

 established during the second year of exposure and desiccation 

 of the old lake bottom silt. 



The species noted as most abundant last year — especially the 

 sedges, low grasses, and herbaceous plants common in the im- 

 mediate vicinity — have largely disappeared, and in their place is 

 a more extensive growth of the larger, coarser species of grasses, 

 such as Echinochloa Crus-gaUi (L.) Beauv. and Panicum dicho- 

 tomiflorum Michx., and two interesting newcomers, Andropogon 

 Virginicus L. and Phragmites Phragmites (L.) Karst. (pl. i, 

 /. 7). The former is, with us, mostly a dry-ground species and 

 the latter has not been recorded heretofore from north of the 



1 Presented at the meeting of the Association October 15, 1915. 



67 



