1902] Soirees. 251 



The type of this is Mr. Macoun's No. 26,675, collected 8 Aug., 

 on the southern slope of the Cheam Range, with Bromus niargin- 

 atus and CastUleia miniata, Sit 4,000 feet. Number 26,676, col- 

 lected Aug. 1 2th within a few yards of No. 26,675, ^ ^^^^ refer to 

 it though it is far less notably pubescent, while at the same time 

 it exhibits quite as strongly all those peculiarities of inflorescence, 

 ray flowers, etc., by which the species stands in contrast with 

 S. triangxdatis . 



Senecio dileptiifolius. Allied to S. aureus, the rather 

 stoutish stems a foot high, from a firm short-jointed nearly 

 horizontal rootstock ; herbage deep-green and glabrous, small 

 tufts of white wool occupying almost the axils of the leaves and 

 pedicels : lowest leaves with broadly oblanceolate incisely serrate 

 blade an inch long or more, and a slender petiole about as long ; 

 the lower and middle cauline considerably larger and more deeply 

 incised but also petiolate, only the uppermost more nearly lanceo- 

 late or linear and sessile, these merely serrate-toothed : cyme of 

 middle sized or smallish narrow heads distinctly subumbellate ; 

 bracts of the cylindric involucre few and broad, oblong-linear and 

 merely acutish : rays about 5 or 6, long and light-yellow : 



Mr. Macoun's label for this bears the number 26,679, ^""^ 

 indicated that the plant was collected 29 August at an altitude of 

 6,000 feet, growing with Epilobium spicatiim, Bucephalus Engel- 

 fnannii and Mimulus Lewisii on a mountain slope, from the upper 

 part of which water trickled through the roots of these plants. I 

 name the species in allusion to the general likeness which its 

 leaves bear to those of Lepidiuni Virginicum, the type of a genus 

 Dileptium with some authors. 



SOIREES. 



The second soiree of the season was held in the Y. M. C. A. 

 Assembly Hall, Jan. 14th. The lecture of the evening, by Dr. 

 R. A. Daly on "The Relation of Geology to Geography," was 

 mainly devoted to the illustration of the developmental idea in 

 geographical study. A table showing the great scope of the geo- 

 graphical sciences was exhibited, and the conclusion stated that a 



