186 Rhodora [SEPTEMBER 
The keys which have been copied or compiled chiefly from other 
sources add to the usefulness of the work, but in some cases more 
intelligent copying would have made them more useful. For example, 
on p. 201, a bit of key extracted from Rnopona, xvii. 127, aims to 
show the distinctions between two varieties of Lycopodium annotinum 
but, unfortunately, the wrong lines were copied so that they can only 
lead the user astray. 
The local pride and perhaps lack of broader experience which 
leads the compiler of practically every local list to feel that his region 
“contains a large proportion of plants that reach the limits of their 
ranges within or very near its borders," is probably responsible for 
the long list already enumerated which the author erroneously sup- 
poses to limit their northeastern extensions in Berkshire County. 
The same psychological phenomenon is doubtless responsible for the 
statement under Potamogeton confervoides that Guilder Pond is 
“The only locality in the State for this local Pondweed," and under 
Orontium that Big Pond in Otis is “The most northern station for 
this plant of the coastal plain." A little search would have revealed 
much material of Potamogeton confervoides and many records from 
Robbins's classical station at Chockalog (or Shockalog) Pond in Ux- 
bridge whence it has been known since 1844 and that Tuckerman’s 
station for P. Tuckermani (synonym of the earlier-published P. 
confervoides) was in Tewksbury, Middlesex County; while N. A. Cobb’s 
long-known (and published) station for Orontium in Slow Brook, 
Northampton, is surely more northerly than Big Pond. 
The Appendix contains a long list of Fugitive Species and another 
of Excluded Species. In the latter are many entries from Dewey's 
original list, which must have gone into the discard through failure 
to understand the usage of Dewey's time. "Thus Festuca fluitans, 
Elymus glaucifolius and Vicia sativa, like many others, are excluded 
because these names do not cover in the 7th edition of Gray 's Manual 
plants of Berkshire County; but surely the Festuca fluitans or Glyceria 
fluitans of early New England botanists and of the first six editions 
of the Manual was either G. borealis or G. septentrionalis, species first 
differentiated from the Old World G. fluitans in 1897 and 1906 
respectively. Vicia sativa of American manuals up to the 7th edition 
of Gray’s Manual was, of course, V. angustifolia, var. segetalis; and 
Elymus glaucifolius is identical with E. canadensis. All these plants 
appear in the Flora under their now accepted names; but such names 
of Dewey’s as Eriophorum cespitosum (synonym of the European 
E. vaginatum but applied by Dewey to E. callitrix), Sagittaria sagitti- 
folia (the Old World species with which the American S. latifolia was 
formerly confused), Eriocaulon gnaphalodes (the name long used for 
the southern E. compressum. with which Dewey confused our Æ. 
septangulare), Trientalis europaea (the Old World species with which 
early New England botanists identified our T. borealis) and Anemone 
nemorosa (the European species with which our A. quinquefolia was 
