277 
uted as No. 180 of their Musci. Am. bor. Exsicc., with description 
and notes in their observations. These specimens should be com- 
pared with JZ, acount’ Aust. which has been referred to Amdélyo- 
dan dealbatus in the Manual. Gymnostomum curvirostrum var. 
scabrum is also an addition to the flora, not having previously 
been reported. We find several typographical errors, one of 
which is guilty of making a synomym for Coscinodon Raui. We 
have two sets of specimens from the Bluffs at Winona, and have 
not found C. Wright? among them, but C. Rau does occur, and 
the fact that M. Cardot has determined it as C. Renauldi, adds 
another point to my argument that the species are identical. 
The citation of authorities for Cynodontium Wahlenbergit 
(Brid.) Hartm. is incorrectly given, and Physcomitrium pyriforme 
is listed on Cardot’s determination. We have not yet seen an 
American specimen which agreed with this species, and the ones 
sent to us by M. Cardot bearing this name are not excepted. 
Physcomitrella patens (Hedw.) Br. & Sch. should be added as hav- 
ing been collected by Miss Sheldon at Fort Snelling, Minn., Octo- 
ber, 1894. BGS. 
On new Species of Cretaceous Plants from Vancouver [sland, 
J.W. Dawson. Trans. Roy. Soc Canada, sec. 4: 53-72. pl. 5-14. 
1893. 
In this paper are included descriptions of twenty-eight new 
species, some of which are, however, certainly referable to pre- 
viously described species. The figures are poor and some of the 
material upon which new species are founded is too fragmen- 
tary to be satisfactory. In deference, doubtless, to certain critics 
of palaeobotany the author finds it advisable to use these words: 
“T think it proper to say that I cannot be expected to pledge my- 
self for the accuracy of the generic names attached to mere leaves. 
When the fruit shall be found connected with them, they may re- 
quire very different reference. At present they merely stand as 
forms of certain types characteristic of a certain geological age, 
and admitting of more or less accurate comparison with modern 
plants,” which sentence he sums up quite concisely all that the 
palaeobotanists claims for his determinations. A chapter on the 
value of fossil plants as indices of climate in the past completes 
the paper. _ we. 1. 
