164 The Ottawa Naturalist. [October 



BOTANICAL NOTES. 



Acer dasycarpum. — I have for seven years kept a careful 

 note of the time of blooming ot a healthy tree of the Silver Maple 

 {Acer dasycarpum) which stands on the north side of James street, 

 Ottawa, in front of my house. Thinking" that these dates might 

 be of interest to others as well as myself, I send them to The 

 Ottawa Naturalist. On the following dates the tree was fairly 

 well covered with blossoms : 



1895 — April i8th. 



F^irst flowers April 8th. 



W. J. Wilson. 

 A New Meadow-rue» — Mr. M. L. Fernald examined the 

 Geological Survey specimens ot Thalictrum a few months ago and 

 among them found a new species which he has named T. coiifirie, 

 and described and figured in Rhodora for Dec. 1900. It was col- 

 lected by Prof. Macoun in thickets at Hemlock Lake near Ottawa, 

 in flower Aug, 8th, 1894. Fruiting specimens of this species were 

 collected by Mr. Fernald in Sept., 1900. in Maine. T. occidentale 

 has also been found to be common in the Maritime provinces, 

 and it is not unlikely that it too will be found at Ottawa where 

 T. dioictirn and T. polygamiim are common. The meadow-rues 

 should always be collected in fruit. 



Agrimony. — The two species of Agrimony, A. hirsitta and 



A. Brittoniana should both be found in the Ottawa district though 



only the former species is represented in the herbarium of the 



Geological Survey. A. hirsnia has short, turbinate fruit, the 



dilated marginal rim of the convex disk bearing numerous reflexed 



spreading hairs ; in A. Brittoniana the disk is flat or concave, the 



bristles short, crowded, inflexed and connivent over the sepals, the 



fruit is long-turbinate. In the former species the leaves are thin 



with the margins and nerves beneath ciliate, in the latter species 



the leaves are thickish, rugose and softly pubescent beneath, the 



margins finely scabrous-ciliolate. 



J. M. M. 



