4 MASS. EXPERIMENT STATION BULLETIN 345 



For plants having no such colloquial appellations extant, no attempt has been 

 made to coin everyday terms to represent them in English. 



In an effort to preserve the alphabetical order, named garden hybrids are 

 either inserted in the list under one of their parent species, or listed in separate 

 groups under a common horticultural designation. The names of hybrid plants 

 which have recognized binomials are preceded by the symbol "X". 



Sources of Information and Opinion 



Acknowledgment is due a number of general practitioners and specialists in 

 horticulture whose current opinions were sampled during the preparation of 

 this paper. Information of a general nature as to the list in its entirety was 

 supplied by Mr. Russell N. Barnes of the Connecticut State Highway Depart- 

 ment; Prof. Lyle L. Blundell of the Massachusetts State College; Mr. Henry 

 E. Downer of Vassar College; Prof. Stephen F. Hamblin of the School of Land- 

 scape Architecture, Harvard University; Mr. William H. Judd of the Arnold 

 Arboretum; Mr. Harlan P. Kelsey, Nurseryman, of East Boxford, Massa- 

 chusetts; Mr. L. F. Kinney, Horticulturist, of Kingston, Rhode Island; Mr. 

 Hans J. Koehler of Olmsted Brothers, Landscape Architects, Brookline, 

 Massachusetts; Mr. James E. Mitchell, Nurseryman, of Barre, Vermont; Mr. 

 Lester W. Needham, Nurseryman, of Westfield, Massachusetts; Mr. Jacob 

 Van Heiningen, Nurseryman, of South Wilton, Connecticut; Mr. Willard 

 Van Heiningen, Nurseryman, of South Wilton, Connecticut; Mr. Wilfred 

 Wheeler of Hatch ville, Massachusetts; Dr. Donald Wyman of the Arnold 

 Arboretum; and Mr. Richard M. Wyman, Nurseryman, of Framingham, 

 Massachusetts. 



Acknowledgment is also given to Mr. L. C. Bobbink, Nurseryman, of Ruther- 

 ford, New Jersey, for his suggestions for the Rose list. Dr. Clement G. Bowers 

 has kindly given advice on the treatment of Rhododendron. Mr. Charles 

 Francis Jenkins has commented on the varieties of Tsuga included here. Dr. 

 Alfred Rehder has, in addition to furnishing a guide to proper nomenclature, 

 joined in the assembling of the list of rock-garden shrubs. The partial list 

 of garden Clematis as given here has been made up with the aid of Col. J. E. 

 Spingarn of Amenia, New York. 



All photographs reproduced here are from the collection of the Arnold 

 Arboretum, with the following exceptions. The illustrations of fruits of 

 Callicarpa japonica, Malus Sargenti, and Viburnum Wrightii are from photo- 

 graphs made by Mr. Herbert W. Gleason. From the files of the Massachusetts 

 Horticultural Society have come the pictures of Pinus Strobus, Taxus cuspidata 

 var. Thayerae and Wisteria floribunda. 



Notes on Species and Varieties 



X Abella grandiflora GLOSSY ABELIA 



A top-tender, half-evergreen, shiny-leaved shrub which has not proved 

 satisfactory in New England except in the most sheltered spots, or in warmer 

 areas such as parts of Cape Cod. Its freely borne white, flushed-pink flowers 

 appear from June to November, followed by a display of persistent purplish 

 sepals. Medium in texture and size. 



ABIES The Fir 



Because of their love for cool, clean, humid air, the Firs may be looked upon 

 as plants for foggy mountainous sections or, sometimes, for humid regions near 

 the sea. In general, they abhor dry inland situations or the smoky air of densely 

 populated areas. Another hindrance to their widespread successful cultivation 



