11 
Notes on Myriophyllum. 
M. Farwellii Morong, When Dr. Morong described this 
species, material for a full description of the flowers was lacking, 
and the only known locality for the plant was in a small pond in 
Keweenaw county, Mich. Since then it has been collected in 
Wilton, and the Piscataquis River, in Maine, by M. L. Fernald, and 
by myself in two widely separated localities in Vermont. I first 
collected it in a small mountain pond in Johnson, Lamoille 
county, and later in a set-back of the West River at W. Towns- 
hend, Windham county. I have thus been able to collect abund- 
ant material at different stages of flowering and fruiting and to 
study the habit of the plant with some care. The habit of the 
Johnson plant is somewhat different from that of typical 17. Far- 
wellit; I have never found it rooting, but floating near the surface 
in large quantities, sometimes sinking to the bottom when heavily 
fruited. It blossoms in June and early July, and matures fruit in 
July and early August. Its fruit is almost precisely like that of 
the type in every particular. 
The Townshend plant has the same rooting habit and the 
Same peculiarities of submerged growth and fruiting as the type, 
but its fruit is larger, darker and matures a month later, in early 
September. The ridges of tubercules run more irregularly and 
the tubercules themselves are much larger than those of the type. 
The lower tubercules take the form of short, hooked spines. 
Of the flowers Dr. Morong said: * Judging from specimens 
furnished it is dioecious, as I can find only pistillate flowers. 
Petals four, oblong, delicate, purplish in color, including four 
abortive stamens, which have silk-like filaments and minute, unde- 
veloped anthers.” The flowers were alike in both forms of my 
collecting, perfect; petals four, oblong, purplish; stamens four, a 
little shorter than the petals; filaments glabrous, somewhat longer 
than the short oblong anthers; stigmas plumose, sub-sessile. I 
have not examined the very earliest flowers, but the later ones 
were all perfect, As in other species, the upper portion ofa stem 
will often be in flower while the lower portion bears mature fruit. 
* Bull. Torr. Bot, Club, 18: 146. ee 
