Zwetsche Von der Worms. Species? 1. Mathieu Nom. Pom. 455. 1889. 2. Guide Prat. 163, 368. 1895.
Grosse Blaue Zwetsche Von der Worms 1, 2. Quetsche Grosse Blaue de la Worms 1, 2.
Tree vigorous, productive; fruit large, oval, bluish-black; flesh greenish-yellow, juicy, firm; mid-season.
BIBLIOGRAPHY AND REFERENCES, WITH ABBREVIATIONS USED.
In this list it is hoped that there will be found all horticultural books in America dealing with the plum. No attempt has been made to include botanical works. Only such European books are recorded as were found useful in preparing the volume. All the agricultural and horticultural periodicals to which references are to be found in the preceding pages are given, but no more. The reports and bulletins of experiment stations and horticultural societies are not included since the abbreviations used for such publications are readily recognized. The date of copyright has been preferred to that of publication though sometimes it has been necessary to use the latter, as when there were several editions from the same copyright.
Abercrombie, Gard. Ass’t
The Gardeners Daily Assistant. By John Abercrombie. London: 1786.
Am. Gard.
American Gardening. New York: 1892-1904. (Before its union with Popular Gardening in 1892, was known as American Garden. Both Popular Gardening and American Garden resulted from the union or absorption of several other horticultural periodicals.)