454 THE AMERICAN NATURALIST. 
by an analysis of the flora of the Ayrshire coast between Prestwick 
and Troon. 
“Catalogue of herbarium specimens for exchange,” a rather 
unusual title for a bulletin of an agricultural experiment station, 
is the title of Bulletin No. 51 of the North Carolina station, issued 
under date of December 16 last. 
Silphium lanceolatum is the name proposed by Mr. Canby in the 
February number of the Botanical Gazette for a new species of the 
South Atlantic region. 
The comparative morphology of cactus embryos and seedlings 
is considered by Professor Ganong in the Annals of Botany for 
December. 
Professor Rowlee describes and figures two Mexican willows — 
one new—in the Botanical Gazette for February. 
Meconopsis heterophylla, of California, is figured in the January 
number of the Botanical Magazine. 
Stachys arvensis, in Australia, is said to cause fatal cases of 
poisoning when eaten by bullocks and horses. — Queensland Agr. 
ourn., January. 
Lewisia tweedyi, of Washington, is figured in the Botanical Maga- 
zine for January. 
