107 



recorded its presence in the Ajjpalachians of \ ir^^inia ; there is a 

 specimen collected hy him near Sweet Springs (which lies on the 

 boundary between X'irginia and West Virginia) preserved in the 

 herbarium of the Academy of Natural Sciences of Philadelphia. 

 A similar, if not identical, plant was separated by Greene" as 

 Coni'olz'uhis campontm, but its status remains to be ascertained, 

 and the name of Alichaux, having clear priority, is the one that 

 should be used. As to how common Convolvulus stans may be 

 toward the northern end of its range I have no data, but it is abun- 

 dant on practically every shale-slope which I have seen, in one or 

 more places in Alleghany, Bath and Highland counties, Virginia, 

 and Greenbrier, Hardy, and Monroe counties. West Virginia. On 

 the Wild Flower Preservation Society trip of May, 1928, above re- 

 ferred to, it was found in bloom on a ridge of calcareous shale just 

 north of Flintstone, Allegany County, Maryland, and the pho- 

 tograph reproduced above was obtained. Typical C. spithamactis 

 occurs in the same or neighboring counties, in places where 

 normal soils have developed on rock ledges, but the two can be 

 readily distinguished at a distance or from a moving automobile, 

 and are certainly worthy of separate recognition in botanical 

 manuals. A good common name would be Velvet Convolvulus. 



Another plant which is highly characteristic of Appalachian 

 shale-slopes, though also growing to some extent on other kinds of 

 rock, is the Everlasting Groundsel, Senecio antennariifolius Brit- 

 ton. This is on record from Virginia and West Virginia, but 

 apparently not from Maryland, so the finding of it in the latter 

 state is worth noting. In May, 1928, the Wild Flower Preserva- 

 tion Society members found it east of Hancock, in Washington 

 County, and near Cumberland and Gilpin, in Allegany County, 

 the correctness of our identification being kindly confirmed by Dr. 

 S. F. Blake. 



Although the Hairy Penstemon, Pcnstemon cancscens Britton, 

 is not a typical shale-slope plant, it sometimes grows in such habi- 

 tats, and its discovery in May, 1928, east of Hancock, Maryland, 

 may be placed on record here. In this case identification was con- 

 firmed by Dr. Francis W. Pennell. 

 Washington, D.C. 



"Pittonia, 3: 328. 1898. 



