36 Rhodora [FEBRUARY 
This broader view and research only tended to confirm finally the 
impression that all the supposed distinctive characters of /. attenuata 
are variable, and that there are no differences between the two forms 
which are specific, constant, or concomitant one with another, or 
which have even varietal value. Acknowledgment should be made 
to Dr. Robinson and to Mr. Fernald for advice and co-operation 
in the investigation. 
I may add that I found no specimens with long pedicels from 
Maine, New Hampshire or Vermont. 
Limosella aquatica, var. tenuifolia, Hoff., will probably be found on 
the coast of Maine, but at present the report in the Portland Cata- 
logue lacks confirmation. 
While Pedicularis lanceolata is credited to Massachusetts, it should 
be said that it here reaches its northern limit, and is rare and local. 
I have been able to discover but two collections of it; one, proba- 
bly a waif, in the herbarium of the New England Botanical Club, 
labeled, without date, “Middlesex Flora. Loc. Revere, just over the 
line. Mass. Moody.” ‘The other sheet, which was kindly sent to me 
for examination by Prof. Geo. E. Stone, of Amherst, Mass., was from 
the herbarium of Atherton Clark, and collected at Prescott, Mass., 
by the late Prof. H. G. Jesup, in Sept., 1874. 
Many waifs belonging to the two families here treated have been 
reported as more or less established in various parts of New Eng- 
land. Of these the following having been seen in herbaria are 
included, although with some hesitation, in the columns of the Check- 
list: — Linaria Cymbalaria, Mill, Z. Elatine, Mill., Pentstemon grand- 
florus, Nutt., P. Smallii, Heller, P. tubiflorus, Nutt., Verbascum Lych- 
nitis, L., V. phlomoides, L., Veronica Chamaedrys, L., V. Teucrium L., 
and Verbena bracteosa, Michx. 
The only Pentstemon native to New England is 2. pubescens, 
Soland., but 2. Zevigatus, Soland. and its variety digitalis, Gray, fre- 
quently appear in cultivated grounds. 2, grandiflorus, Nutt. was 
collected by Dr. Walter H. Chapin in 1898 “in waste land on the 
edge of the City” of Springfield, Massachusetts, where there were 
about roo plants in a small space. Dr. Chapin writes that the spe- 
cies still (1904) “persists and if not exterminated by cultivation will 
be permanent. The plant, however, has not materially extended its 
limits." This species has also been reported from Granby, Con- 
necticut, but the report may be based on P. .Sma//ii, Heller, collected 
