ba 
76 General Notes. [January, 
-ize a course of so-called laboratory work in botany on lines which 
it is only right to say were borrowed and extended from the 
teaching and example of Professor Huxley. In what I attempted 
I had the generous aid of many now distinguished members of 
the younger school. I do not doubt that they have immensely 
improved on the beginning that was in the first instance some- 
what tentatively made. But the principle, I believe, has always 
remained the same, namely, to give the students a thorough and 
practical insight into the organization and structure of the leading | 
types of the vegetable kingdom. When, therefore, Mr. Henslow, 
himself a teacher, asserts that such laboratory teaching as this 
should be preceded by a thorough course of practical and sys- 
tematic botany, it appears to me that he is bound to explain what 
he precisely means by this very dark saying. For if botanical 
laboratory work in this country is not thorough, is not practical, 
and in dealing with types drawn from every important group is 
not systematic, it is important to know in what respects it falls 
short of these requirements.” 
New Species oF NortH AMERICAN Funoi.—Septoria purpur- 
ascens—H ypophyllous on small reddish-purple spots without any 
definite border, and often confluent so as to give a purplish dis-- 
coloration to large areas of the leaf; perithecia prominent, scat- 
tered, collapsing above, 150-190 in diam.; spores fusiform, hy- 
aline, slightly curved, endochrome thrice divided, 30-50 X 3m 
On leaves of Potentilla norvegica, Adirondack mountains, N. Y., 
Aug., 1883. Collected by Dr. Geo. A. Rex. This can hardly be 
S. sparsa Fckl., which has spores narrowly filiform and straight, 
nor S. fragariæ Lasch., which has spores shorter and broader at — 
one end. S. potentille Fckl., is a Gloeosporium and quite dif- 
ferent. 
Cercospora racemosa-—In small (1-2™) patch kahi 
at first then brown and often aa Ee Hi patches, greenish-whl 
usual type of Cercospora in its lateral conidia and scarcely tufted 
. ? 5 E 1882. On leaves 
of Teucrium canadense, by Professor LC: Aahe a 
$ lit. ieee J MER ELAR ID 
