288 Rhodora [DECEMBER 
part, some specimens collected by Robbins at Dutcher's Bridge 
Salisbury, Connecticut, 13 August, 1870. 
From the facts here presented, it must be inferred that in 
recording the stations for Wolfia columbiana, Mr. Thompson made 
that very natural clerical error of copying not the locality where 
Robbins obtained the plant but the personal address, Uxbridge, 
Massachusetts, which according to a practice once common and 
always likely to mislead, Robbins had had printed upon his labels. 
Connecticut is therefore the only New England state from which 
Wolfia columbiana has been secured with certainty. However, the 
northernmost station in Connecticut is so near the Massachusetts 
boundary that there is a considerable probability that the species 
extends over the line. 
It seems a pity that Dr. Robbins, who not only discovered this our 
smallest New England flowering plant but had the rare discrimina- 
tion to recognize its novelty and correct generic affinity, should never 
have recorded in print his observations concerning it. More 
than thirty-five years passed after the original discovery by Robbins 
before the species was characterized and named by Karsten in 
Germany upon the basis of type material from Colombia in South 
America. 
GRAY HERBARIUM. 
MATRICARIA DISCOIDEA IN New HawrsHIRE.— While collecting 
New Hampshire plants with a party of botanists on June 14, 1903, 
I found by the roadside near the shore at Wallis' Sands in the town 
of Rye, a small colony of the Pine Apple Weed (Matricaria dis- 
coidea, DC.). The plants were of good size, but not many in 
number. At some distance, however, another much larger colony 
of smaller plants was found. From the observations I have made 
in Maine regarding the habits of this plant, I consider that in a 
very few years it will be abundant in this part of Rye. Mr. A. A. 
Eaton writes me that this Matricaria, so far as he knows, is not 
established in New Hampshire; and it does not appear in the Man- 
chester List. It may be well, therefore, to record this station for a 
weed which has a most redeeming quality in its pleasant odor.— 
Epwarp L. Ranp, Boston. 
