1923] Flora of the Boston District, —X XXVIII 25 
subsp. microphyllum Lange, |. c. 91 (1880). Myrtillus uliginosa, var. 
microphylla (Lange) Simmons, Vasc. Pl. Ellesrald. 37 (1906). M. 
uliginosa, var. pubescens (Lange) Porsild, Meddel. om. Grónl. 1. 
381 (1912). 
Writers on Greenland plants maintain var. pubescens Lange (not 
V. pubescens Wormsk.) as a good variety, but southward the plants 
with glabrous and with more or less minutely pubescent foliage do 
not seem to be satisfactorily separable. In Newfoundland and on the 
mountains southward they are freely intermingled and can be sep- 
arated only by a purely mechanical sorting of the two tendencies. 
GRAY HERBARIUM 
REPORTS ON THE FLORA OF THE BOSTON 
DISTRICT,—XXXVIII. 
Turs report includes a series of rough-fruited plants which have 
been introduced into Massachusetts, mainly in wool. These plants 
have come up as waifs, mostly around woolen mills. Some of them, 
like Echium vulgare, have been real introductions, and have persisted 
and spread in enough places to become a permanent part of our flora. 
Most of them, coming to us from the West, from South America, and 
from Europe and Asia, have not found conditions here favorable to 
reproduction. No Australian plant has yet been reported, but the 
rest of the wool-growing world is well represented. 
It is interesting to note that these waifs are not found in the shoe 
manufacturing towns of Massachusetts. "Their favorite haunt seems 
to be the country about some of the smaller woolen mills, where the 
wool waste has been spread on the land, instead of being dumped and 
burned, as is done in the larger places. Many waifs like these have 
already been reported in other families, especially Legum?nosae and 
Geraniaceae. 
The committee has been fortunate in having access to the W. P. 
Alcott collection of these plants at the Peabody Academy of Science 
in Salem. The committee wishes especially to express appreciation 
of the assistance given by Mr. J. F. Macbride and Mr. I. M. Johnston 
in the identification of some of the difficult species. 
