160 Rydberg: Notes on Rosaceae 



Mississippi: Biloxi, 1898, Tracy 4106. 



South Carolina: Hilton Head, 1864, Eaton. 



Riibus trivialis Michx. is well known, although R. lucidus and 

 R. carpinifolius have been mistaken for it. It is very variable 

 as to the width of the leaflets. A peculiar form with narrowly 

 lanceolate leaflets has been collected in Louisiana and Missiscippi. 

 It may represent a distinct species, but the material is too meager. 

 The specimens of this form are the following: 



Louisiana: Cat Island, Mississippi Delta, 1900, Lloyd &" Tracy 

 263. 



Mississippi: Biloxi, 1898, Tracy 41 14. 



Ruhus carpinifolius Rydb. This is closely related to R. 

 lucidus, but differs in the double-toothed leaflets of the new shoots. 

 It is also sometimes as bristly as R. trivialis. The following speci- 

 mens belong here: 



Texas: New Brunnfels, 1850, Lindheimer 791; San Antonio, 

 1853, Thurber; Gillespie County, Jermey (named R. occidentalis) ; 

 San Felipe, 1839, Lindheimer. 



Arkansas: Fort Smith, 1853, Bigelow (Whipple Exp.). 



Missouri: Eagle Rock, 1896, Bush 18; White River, 1896, 

 Mackenzie. 



Louisiana: Alexandria, iSgg, Ball 428. 



Ruhus ruhrisetus Rydb. is a very rare and local species. Only 

 the following specimens have been seen : 



Missouri: St. Louis, 1874, 0. Kuntze 2789; Bush 116. 



Louisiana: 188$, Poggenbiirg; Biltmore herbarium 4488". 



New York Botanical Garden 



