APPENDIX A.

FLORA OF WORCESTER COUNTY.

A CATALOGUE

OF THE

PHÆNOGAMOUS AND VASCULAR CRYPTOGAMOUS

PLANTS OF WORCESTER COUNTY,

MASSACHUSETTS.

SECOND EDITION, REVISED AND ENLARGED.

1894.

PREFACE.

IN the autumn of 1883 I prepared for publication the first Catalogue of the Plants of Worcester County, Massachusetts, containing eight hundred and twelve species and well-marked varieties. In the meantime, by the kind and generous help of many friends, all of whom will understand, I hope, that whether their names appear in these pages or not, my sense of obligation to them is here fully acknowledged and gratefully remembered, more than two hundred additions have been made.

This Catalogue, revised and enlarged, is now issued in the hope that it may serve as a basis for still further additions, so that, in due time, our county may have its flora as fully recorded as possible. Its main purpose is to help and to encourage the beginner and to afford pleasure to those who take an interest in untamed and unpruned Nature.

Much yet remains to be done. The mosses, lichens, fungi and algæ furnish a wide field for the coöperation of workers in different parts of the county for some years. The yearly increasing interest in such work and the greatly increased facilities for prosecuting it are hopeful signs of its accomplishment.

The arrangement and the nomenclature of this Catalogue are those of Gray's Manual of the Botany of the Northern United States,-Sixth edition, 1890-the book most readily accessible to all persons interested in the study of our local flora. In the present state of botanical nomenclature, and for the purpose for which this Catalogue is intended, I have not thought it wise or necessary to adopt proposed changes not yet generally accepted. The student interested in such matters can easily adapt himself to changing conditions.

Introduced species, so far as I have been able to determine the fact of introduction, are indicated by a *.