67 



genuina, Muell, Arg. 1. c. 885.) River gravel near Monterey, 



July 4. (1915). 



HiPPOMANE/E. 



Stillingia Torreyana, Watson, Bot. Calif, ii. 72. Fields 



near San Miguel, State of Tamaulipas, July 30. (2071). 



Stillingia Zelaycnsis, Muell. Arg. in Linn, xxxii. Z"]. 

 fers from the original description in the same features the 



Dif- 

 Wat- 



son notes (Contrib. xiv. 451) in a specimen gathered by Dr. 



June 7. (2070). 



Jalisco, 1886. Hills near Monte 



Aster cordifolius, L. and Two New Varieties. 



This, the most common and abundant Aster of our Eastern 

 flora, blooming everywhere profusely during the months of Sep- 

 tember and October, like others of the genus, is subject to great 

 variation. It exhibits, however, three distinct and dominant 

 lines of development, each of which deserves recognition. If a 

 characteristic specimen of the first variety named below were 

 placed beside one of the typical form, the intermediate links that 

 connect them being unknown, it would be accepted without hesi- 

 tation as a good species, which, perhaps, It is. Even where 

 found growing together, they are readily distinguished by the 

 practised eye. 



Aster cordifolius, L., (typical). — Leaves thin, membranaceous, 

 strongly scabrous-pubescent, serratures mostly large, sharp- 

 pointed and spreading; cauline ones round-cordate to cordate, 

 on naked or barely-margined petioles; uppermost ovate; 

 panicle ample ; heads of flowers very numerous, variable in size, 

 2 to 3 lines high ; rays light blue to deep violet ; disk-florets 

 yellowish or purple (as in some other species of the genus), both 

 kinds often in the same head. 



Aster cordifolius, L., var. L^VIGATUS, new var. — Leaves 

 thickish to coriaceous, pale green, often glaucous beneath, in tex- 

 ture and smoothness like those of ^. IcBvis, but generally supplied 

 with a very sparse, minute, somewhat roughish pubescence, ser- 

 ratures more or less appressed ; cauline ones cordate to oblong- 



