96 THE BOTANISTS OP PHILADELPHIA. 



Muhlenberg's valuable herbarium was bought by a 

 number of his friends for a little more than five hundred 

 dollars, and was presented to the American Philosophical 

 Society in February, 1818. It was then in good condition, 

 but has, unfortunately, being allowed to suffer from neglect 

 until it is no longer of any value. 



His services to science have been well recognized by 

 botanists. A golden rod was given by Torrey and Gray the 

 name Solidago Muhlenhergii ; a small willow was denomi- 

 nated by Barratt Salix Muhlenbergiana ; Grisebach named a 

 centaury Erythrsea Muhlenhergii ; Gray gave the name Miih- 

 lenbergii to a species of reed or sedge, and Schreber the name 

 Muhlenhergia to a genus of grasses. Two mosses of the 

 genera Phascum and Funaria were named in honor of Muh- 

 lenberg by Schwartz ; two lichens of the genera Umbilicaria 

 and Gyrophora by Acharius ; and, by Elliott, a fungus of 

 'the genus Dothidea. 



About half of the plant names, given by Muhlenberg, 

 which are now recognized, belong to the plants of the 

 natural orders, Cyperacese and Graminese, in the study of 

 which he was supported by Schreber. 



This review of Muhlenberg's botanical work would not 

 be complete without special reference to his scientific cor- 

 respondence, his personal intercourse with naturalists, and 

 degrees conferred. Among his foreign correspondents were 

 Dillenius, Hedwig, Hoffbaann, Persoon, Pursli, Smith, 

 Schopf, Schreber, Sturm, Willdenow, William Alton, Batsch, 

 Palisot de Beauvais, Schkuhr, Heinrich Adolph Schrader, 

 of Gottingen; Kurt Sprengel at Halle, and Prof. Olof 

 Schwartz, one of Linnseus's most eminent pupils. Muhlen- 

 berg also had as home correspondents Rev. Christian Denke, 

 of Nazareth, Pa. ; the Rev. Samuel Kramph, of North 



