238 Scientific Intelligence. 
native species. These weeds are a nuisance in every sense, to the 
botanist no less than to the colonist, and glad should we be every- 
where to ignore them if we could. But, as a classical English 
poetess sings 0 
“Tall Buttercups that will be seen 
Whether we will or no,” 
the botanist cannot well shut his eyes to the intruders, although 
they do spoil the symmetry and purity of a flora. A. G. 
8. The Influence of Light on the Motions of Desmids ; by E. 
pos- 
property which swarm-spores possess of placing their long axes 
parallel to the direction of the light. it i 
spores of Botrydium, Stahl, however, maintains that the spores 
ot Botrydium act like other swarm-spores, and he doubts the 
validity of the two forms of phototaxis as described by Stras 
w. G: 
the Provinz Brandenburg, Dr. Bauke showed that the early stages 
of the Het ge or of Platycerium grande differed from that of 
ros, TY 
e growth of the terminal cell of the germinal fila- 
¢ r e etion. 
Spor tay as Eran ana 
*» 
