132 Rhodora [Jun 
related naturally to the next nearest station northward at Salisbury, 
Connecticut! than to the other New York stations. These two 
stations together with that of the Lehigh county, Pennsylvania, 
station ? occur approximately in the same relation to the hills of the 
Older Appalachian Mountain Ranges and Appalachian Valley, large 
physiographie features variously named locally, and would seem to 
suggest that, if a natural trend of distribution for the species south- 
ward from the region of its more general occurrence be sought, the 
plant may be found to extend away from, rather than along, the tops 
of the higher mountains. Though this is not usually the case with 
northern types extending southward along the mountains it would 
appear to agree very well with the general distribution which Prof. 
Fernald, in his revision of the species, has noted for Trisetum spicatum 
var. molle which he has shown is found “in more temperate areas of 
the Canadian and "Transition. regions." Information concerning 
the exact location of the plant at Roan Mountain, North Carolina, 
which physiographically may be considered as a part of the Older 
Appalachian Mountain Ranges, is not available but even should it 
occur with other northern plants known to grow on its summit at an 
elevation of 6313 feet it is only what may be expected of northern 
plants so far south. Since the plant through its discovery in Penn- 
sylvania has been shown, as Prof. Fernald predicted, to be “‘some- 
where along the way between the Mohawk Valley and North Carolina," 
may it not be still further suggested that future discoveries of the plant 
southward along the mountains may probably be found to occur 
along the Great Appalachian Valley or, especially southward, in 
close relation to the Older Appalachian Mountain Ranges. 
ALLENTOWN, PENNSYLVANIA. 
1 Flora of the vicinity of New York, Norman Taylor, 1915. 
? Collected July 15, 1917, no. 8910, on open shale outcrops of the Martinsburg formation 
along the Lehigh River in Lehigh County, Pennsylvania, at an elevation of about 260 feet and 
beside the tracks of the Lehigh Valley Railroad about 12 miles southeast by south of Slatington 
station. June 23, 1918, no. 9390. Material of this second collection has been placed in the 
herbarium of the U. S. National Museum at Washington, D. C., in the Gray Herbarium, 
Harvard. University, Cambridge, Massachusetts, and at the New York Botanical Garden, 
Bronx Park, New York City. 
Vol. 21, no. 246, including pages 105 to 116, was issued 2 June, 1919. 
