a 
134 The Botanical Gazette. [April, 
nature, and identical with a blight of potatoes. He also inclines to 
think that it is caused by the same microbe that produces the disease 
in melons, an account of which was given in the preceding volume of 
this journal, p. 303. 
CROSSING VARIETIES OF CoRN has been conducted at the experiment 
station of Kansas since 1888. The results obtained in 1891 are given 
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ca ans of cross-fertilization, be made to blend more or less 
completely,” and that the “blended form, or ‘cross,’ so far as our ex- 
ee indicate, does not generally (if kept free from contamination 
y foreign pollen), revert perceptibly to the parental types.” 
enough water added to cover them, and then boiled about fifteen 
minutes, or until well swollen and white.. The water is now poure 
> 
add another culture medium for diagnostic purposes, as some bacteria 
THE REQUEST of Baron Ferd. von Mueller in Melbourne, i 
ra Leptopitys A. The paper is accom 
panied by ten plates illustrating the plants in natural size, accom® 
H 
E PRESENT SYSTEMATIC arrangement of the phaxosporic alg® 
= Satisfactory. A valuable Ealebetion in regard to the correct 
alge ing of several species heretofore referred to Adenoiysis A 
ren given by Prof. Kjellmann.! He revises the following species: ? 
een var.?) Californica Rupr., 4. Lessont Harv., A. Durd ye 
ive olm. in sc ied. and A. Durvillaei (Bory) et auct. The pe 
Of his examination is that these really represent four dite of 
oO i i 
the family Laminarracer: C 4 ML 6 St émfelt rele 
Sct 3 Coilodesme Strémf., by Str ally ayet 
undescribed genut ef the n. gen. of Puncrartaces#; and finally 
"KJELLMANN, FLR.: U aoe ‘ tis Hook, 
F “\-: Undersékning af naagra till slagtet’ Adenocys'® 5 ed 
= re Bary, henférda alger. (A ide of sone age which have been ref ask 
Akad. Hdl ye) Hooker fil. and Harvey.) Bihang till Kgl. Sv. Ve™™ 
» erst. vol. XV, Part 11, Stockholm, 1890. 
