NEW PHYTOLOGIST REPRINT No. 11. 
THE 
ORIGIN AND DEVELOPIIEN 
OF THE 
BY 
JAMES SMALL, D.Sc. (Lond) PhX. 
Professor of Botany in the Queen’s University, Belfast. 
PP. XII & 334, INCLUDING EXTENSIVE BIBLIOGRAPHIES 
WITH 12 MAPS AND 79 FIGURES IN THE TEXT. 
STIFF BOARDS, HALF CLOTH. 
PRICE 
m 
ONE POUND net. 
Nature , (10th June, 1920) says : 
“ His contribution to the investigation of the origin and 
development of the family is by far the most important that haj 
appeared for many years. 
Conclusions are drawn to the effect that the Senecionese are the mosl 
primitive type of the family and that from them directly or indirectly, and 
ultimately from Senecio itself, as the basal .genus from which the Senecionea 
arose there sprang all the other tribes and genera of the family. This is very 
strikingly confirmed by a study of the geographical distribution.” 
WILLIAM WESLEY & SON, 28, 
LONDON, W.C.2. 
Essex Street, Strand, 
