224 
antliracnose, oidiurn, and other fuugi, together with suggestions for 
their treatment; also a formidable list of insect enemies to the vine 
and its fruits $ and an appendix treating of the adaptation of American 
vines to soils. 
Altogether this work of the distinguished botanist is of standard 
interest, and in its preface we have the assurance that it will be soon 
followed by a second volume, wherein Yiala will record personal obser¬ 
vations made in travel through our country, and also u Studies upon 
Viticulture and Vinification in the United States.” The volume under 
consideration is of especial interest to scientists; the volume to come 
will surely be instructive to the practical student of viticulture and 
viniculture.—A. W. Pearson. 
Wakker, J. H. Contributions a la pathologie v^getale: (1) Lamorve 
des Anemones , produite par le Peziza tuberosa , Bull.; (2) Nouvelle 
recherclies sur lagoynmose des Jacinthes et plantes analogues ; (3) Les 
renflements des branches de quelques espdces de Ribes ; reprint from 
_ ... , ; * * . 
Archives Neerlandaises. Tome XXIII, p. 373-400, with 2 plates 011 
Gummosis. . • . - 
i S' » • 1 m ■ t f 
(I.) The author completes some observations on a disease of anemones 
known as black rot, and due to Peziza tuberosa. This fungus occurs 
principally on Anemone Goronaria , its varieties and hybrids, these be¬ 
ing the sorts most frequently planted. It has also been observed on A, 
ranunculoides and A. nemorosa. 
The symptoms of the disease are essentially the same in all the spe¬ 
cies. The leaves turn brown, wither early, and pull up very readily. 
The root-stock is the part first attacked and the chief seat of the dis. 
ease, but the base of the petioles may also become involved. In a 
normal condition the interior of the root-stock shows the milk-white 
color of ordinary starch-bearing parenchyma, but under the influence 
of this fungus it assumes a gray tint, and becomes soft and easy to 
crush between the fingers. Large mycelial filaments penetrate this soft 
mass in all directions, passing between the cells and through them. 
These filaments were traced into the firm tissues of the rhizome. There 
’ * * u »* / n * , v«-*. • » > . 
their very blunt extremities are found only; between the cells, the fila¬ 
ments, as in many other cases, growing around and between the cells 
before determining their destruction. 
When the diseased plants are left undisturbed in the earth, the my¬ 
celium produces large selerotia, easily mistaken for the root-stocks of 
A. coronaria , a fact which singularly favors.the spread of the fungus. 
Toward the end of April these selerotia begin to produce the ordi¬ 
nary Peziza cups. These are a uniform milk and chocolate color, 55 mm 
long ; 3 mm thick ; with a disk breadth of 15 mm. Some other measure¬ 
ments are: asci, 190x12 //.; paraphyses, 190x2 //.; spores, 16x8 p. For 
admirable figures of the Peziza form, see Tulasue 8. F. G. Ill, Tab. 
22, Figs. 1-5. 
