332 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Dry calcareous hill, Sheffield. The most eastern known station. 

 var. LAEVIGATUS (Fernald) Blake. — (S. racemosus 111. Fl. ed. 2 in 

 part; md. Rhodora, 16: 119, 1914.) 



Roadside banks; occasionally escaping from cultivation. 



TRIOSTEUM. Horse Gentian. 



T. aurantiacum Bicknell. — Rocky woods and dry thickets; fre- 

 quent in the southern part of. the valley. 



VIBURNUM. Viburnum. 



V. acerifolium L. Maple-leaved Viburnum. — Woods; com- 

 mon. 



V. affine Bush. — (V. pubcsccns Man. ed. 7 and 111. Fl. ed. 2; vid. 

 Rhodora, 20: 14, 1918.) 



Rocky woods, on schist. West Stockb ridge Mt., West Stockbridge. 

 The only station known in Massachusetts. 



V. alnifolium Marsh. Hobble-bush. — Cool woods and swamps; 

 common. Occasionally growing as a small tree. 



V. cassinoides L. — Swamps and low thickets; common. 



V. dentatum L. Arrow-wood. — Borders of streams and marshes, 

 wet hillsides; common, especially on the plateau. 



V. Lantana L. Wayfaring Tree. — Occasionally escaping from 

 cultivation to open woods, Stockbridge. 



V. Lentago L. Sw^eet Viburnum; Sheepberry; Nannyberry. 

 — Thickets, moist woods and banks of streams ; frequent. 



var. sphaerocarpum Gray. — Occasional with the type, Pittsfield. 



V. opulus L., var. americanum (Mill.) Ait. High-bush Cran- 

 berry. — Swamps and cold woods; frequent. 



VALERIANACEAE. VALERIAN FAMILY. 



VALERIANA. Valerian. 



V. OFFICINALIS L. Garden Valerian. — Grassy roadside, Lanes- 

 boro (Churchill). 



DIPSACACEAE. TEASEL FAMILY. 



DIPSACUS. Teasel. 



D. SYLVESTRis Huds. WiLD Teasel. — Established in a few small 

 stations in Sheffield. 



