\ 
430 THE JOURNAL OF BOTANY 
conspicuous feature on ae of the height of three or four feet 
to which it attains; it is most profuse in its fruits and seeds, and 
seems likely to become more disseminated—indeed, the area which 
it occupies at St. Anne’s has increased from last year, and amy is i 
tending inland. The third alien, Ambrosia artemisiefolia— 
casual in the few places in England where it has pre oul bias 
found, chiefly with ballast—is of Canadian or North American origin. 
Of late years it has been making headway on the Continent, as in 
Den ee ai — Switzerland, Brunswick, the Austrian 
yro t has come there with crop-seeds, especially with 
clover a See sAhhauieh it is termed annual in the American 
Floras, it is only the aerial portion of the plant which dies down 
in the early winter; there is an underground portion, in the form 
of thread-like stolons, or rhizomes, which lives through the winter. 
These slender processes = gpm at right angles from the lower portion 
of the stem about three or four inches below the surface of the 
sh 
spring rise up through the surface as separate plants, able in their 
turn to originate similar underground processes. No mature fruits 
have so far been noticed, and it is assumed that the present areas 
occupied by the plant in the sandhills are the result of several years’ 
continuous growth. ‘The fourth alien is a form of Vicia villosa, and 
is distributed over all Kuropean countries, save our own, this being 
probably the first record of its occurrence in Britain ; ‘there is no 
reason why it should not prove aboriginal, as it is found in Scandi- 
navia, Denmark, Holland, France, and Spain. No special cause 
could be assigned in expense ion of the occurrence of these four 
a place as St. Anne’s, as there are no corn-mills or in- 
dustries likely to lead . the ERE eth of the seeds of such plants. 
Tue proceedings at the opening meeting of the present session 
of the Linnean Socie ety on Novy. 6th were popular rather than 
scientific. The e Acie was entirely occupied by a ‘ lantern- 
lecture” by Mr. H. J. Elwes on his journey in Chile in the winter 
of 1901-02. Specimens of the plants collected were exhibited. 
Tue Geological Survey of Canada has issued from the Govern- 
ment press, Ottawa, part vii., including the Lichens and Hepatice, 
of Mr. John Macoun’s Catalogue of Canadian Plants. 
Butitetin No. 8 of the Department of Agriculture, Victoria, 
and directions as to s raying for fungus diseases. The disease 
a brow 
The parasite grows either on the leaf, destroying it and reducing the 
vitality of the tree, or it attacks the developing fruit, checking its 
owth, and rendering it unfit for market. The loss to the growers 
is very ‘ons siderak e; in Tasmania it occasions more loss than all 
he 
ine rs seales of the bud. In spring, with favouring uaa) tions, 
@ spores germinate "iad tart the disease afresh. A winter form 
—a species of Viaricla inp been identified as a stage of the Musi- 
