OF WESTERN PENNSYLVANIA 



423 



PLATE XLVIII 



K/*- 1! S8K' ^^i!f.ti; 



^>?^to* 



RHAPHIDOSTEGIUM CAROLINIANIT/I 



\\*y PLAGIOTHECIUM DENTICULATUM 



RHAPHIDOSTEGIUM NOVAE-CAESAREAE BRACHYTHECIUM CYRTOPHYLLUM 



