184 Rhodora [September 



Connecticut : Waterford, abundant in sphagnum swamp bordering 

 Fog Plain Brook. 

 Voluntown, Rhododendron Swamp, and in sphagnous 

 meadow, edge of Great Cedar Swamp. 



Not the least interesting feature of this variety is its time of flower- 

 ing. It is one of our early goldenrods, following close after S. juncea^ 

 Ait., and .?. odora, Ait., and antedating S. riigosa in the same neighbor- 

 hood by at least four weeks. This past summer it began to bloom 

 about August first, was well in fiower a week or ten days later, and 

 by the end of the month — at a time when the species was barely 

 beginning — the variety was practically out of bloom. 



Its preference for wet soil is also noteworthy. Thus far it has 

 been found only in rather open sphagnum swamps and wet boggy 

 meadows. Such of its relatives as are associated with it in these 

 situations, ^^ tieglecta, T. & G., S. serotina, Ait., and S. Elliottii, T. & 

 G., frequently spread up on to the higher and comparatively dry 

 margins of the swamp, but the variety under discussion seems not to 

 occur off the sphagnum. 



It is readily distinguished from the species by its perfectly smooth, 

 more striate and usually darker stem, and its relatively smooth leaves. 

 Its early flowering season and its habitat also constitute significant 

 points of distinction. ^. ithni/olia, Muhl., which at times rather 

 closely resembles this variety is a plant of dry wooded or rocky sit- 

 uations, and comes into fiower several weeks later. It also differs 

 in its broader, more ovate, and more pubescent leaves, its usually 

 more slender and open inflorescence, and its akenes which are 

 longer (1^-2^ mm.) less distinctly cuneate at base and much less 

 pubescent than in any observed form of .S". rugosa. 

 New London, Connecticut. 



Note on Hvdrophyllum canadense. — Two references escaped 

 my notice when I was writing my recent paper (Preliminary Lists of 

 New England Plants, — XVII. Rhodora, VI, July, 1904, 151-161). 

 In the Botany of Vermont by William Oakes, published in Thomp- 

 son's History of Vermont in 1842, Hydrophyllum catiadense is credited 

 to the State, on page 192, in the following words: "At the base of 

 Mansfield mountain, and frequent in the south west of Vermont. 

 Robbins. June." This species should be marked with a line in my 

 list under Vermont. 



