PROCEEDINGS 



Ol' THK 



Delaware County Institute of Science 



VoK. I, No. 3 Ai'Kii,, 1906 



NEW Vm 



IJvST OF I)KLA\VARI<: COUNTY PLANTS, BOT/ 



BV I.INN.qiUS I'USSKI.L, M. D. 



Dr. George Smith prepared and published in his " Histoiy of 

 Dehiware County " a ver>' complete list of the plants within 

 our borders. Since the issue of that work, forty-four years 

 ago, many other species have been found — so many that it was 

 thought well to arrange a new catalogue. The revised list 

 includes the names of all plants known in the county and to 

 be seen in the herbarium of the Institute. Others have been 

 added, many of which have been taken from Dr. Ida A. Keller 

 and Stewardson Brown's lately published work, " Handbook 

 of the Flora of Philadelphia and Vicinity." That admirable 

 manual includes nearly all the plants discovered in the county, 

 with localities of the species and authorities for the same. 



A few plants not included in the work, but specimens of 

 which are in the herbarium, have been noted. The entire 

 catalogue has been arranged in accordance with the classifica- 

 tion found in Britton's " Manual of the F"lora of the Northern 

 States and Canada." 



Q-. Subkingdom Pteridophyta Hotrycliinni, Sw., Moonwort 

 g Order FILICALES iieKlectuni, A. Wood 



*"" Ophioglossaceae, I'resl (ihliqmun, Mulil. 



^*^ ()l)hi()glossinn, L., Ad. ler's Tongue (lissectuni, Sprenj<-. 



\ul<jatiuii, L. X'irjjiniamun, iL,.), S\v. 



QAK 



