1881.] natural sciences of philadelphia. 429 



September 6. 

 The President, Dr. Ruschenberger, in the chair. 

 Seven persons present. 



September 13. 

 The President, Dr. Ruschenberger, in the chair. 

 Seventeen members present. 



On Hieracium aurantiacum. — Mr. John H. Red field stated at 

 the meeting of the Botanical Section that he had recently found 

 about two miles north of Tannersville, in the Catskill Mts., N. Y., 

 Hieracium aurantiacum L., growing abundantly over a stony 

 hill-side pasture, at an elevation of about 2500 feet above tide. 

 This plant is a native of elevated regions in central Europe, and 

 is a recent introduction to our Flora. Its prolific runners favor a 

 rapid spread, and the farmers near the Tannersville locality 

 already complain of it as a troublesome weed, so that there is 

 reason to fear it may become an unwelcome permanent resident. 



Mr. Meehan stated that he had received the same plant from 

 correspondents in New England, who had supposed it indigenous, 

 but that he had no doubt it was in all cases introduced. It had 

 also been collected in the Catskills this season by Miss Cope of 

 Germantown. 



Note upon Plantago elongata, Pursh — Mr. John H. Redfield 

 remarked that Dr. Gray, in the new Synoptical Flora of N. Am., 

 ii, 392, says, that this plant " of Bradbury's collection on the 

 Missouri, is unknown, probably a glabrate form of P. Patago- 

 nica.-'' Pursh's specimen ticketed (probably b}" Lambert) P. 

 elongata^ and noted as from Bradbury, has recently been found in 

 the Academy's Herbarium and proves to be unmistakabl}'^ P.pusilla 

 Nutt. 



September 20. 

 The President, Dr. Ruschenberger, in the chair. 

 Twenty persons present. 



A paper entitled " Note on the approximate position of the 

 Eocene deposits of Maryland," by Angelo Heilprin, was pre- 

 sented for publication. 



