Botany and —— 279 
Appendiz ; by J. W. Dawson, LL.D., F.GS., Prinetpal of McGill Uni- 
versity, Montreal. (Q. J. Geol. Soc., 1863. "Re ad Dec. 17, 1862)—In 
a recent visit to Perry, the author (with the aid of Mr. Brown, of that 
place) reali examined the present exposure of the plant-bearin 
ed. A e specimens obtained ne) A ge following. (1. 5 W. 
IV. BOTANY AND ZOOLOGY. 
1. Dimorphism in the Flowers of Linum.—Referring 
brief note upon the subject of dimorphous flowers in this Fecal if 
the two sexual forms in P a (in Jour. nnean Society, no. 22), 
we wish now to call attention to some still more curious observatio: 
experiments of Mr. Darwin, which were read to the Linnzan Society in 
Feb bruary last, and are just published in the 26th no. of its Journal. The 
pepe is entitled: “On the Existence of two forms, and on their sent 
cal Sexual Relations, in several species of the pasaale Linum.” The prin- 
cipal sae is that of the crimson Linum grandi which is now com- 
the stamens and styles in L. perenne and L. 
jectured that this dimorphism might have some influence on the man- 
tt cyte ome aa age sar aml in fig. 
i 
