ACCOUNT OF GENUS SEDUM AS FOUND IN CULTIVATION. 19 
Fertile seed is usually produced abundantly in the genus, and 
germinates readily. 
VII. Sources of Material. 
It may be well to indicate from what sources the material used 
in the present study was obtained ; this will enable any student of 
the genus who comes after to know what fields were explored and what 
were not, and will indicate the directions in which possible fresh 
material may be sought. The following paragraphs must also serve 
as a very inadequate acknowledgment of invaluable assistance received 
from many quarters in the supplying of living material. 
In the case of the following collections, all the Sedums contained 
in them were examined, either by means of personal visits or through 
having received and where necessary grown a plant of each species : 
Kew, Royal Botanic Gardens. 
Edinburgh, Royal Botanic Gardens. 
Dublin, Royal Botanic Gardens. 
Wisley, Royal Horticultural Society's Garden. 
Cambridge, Botanic Garden. 
Oxford, Botanic Garden. 
Dublin, Trinity College Botanic Garden. 
Chelsea, Physic Garden. 
Bristol, University Botanic Garden. 
Brussels, Jardin Botanique. 
Copenhagen, Universitets Botaniske Have. 
Stockholm, Bergianska Tradgarden. 
^ Upsala, Universitets Botaniska Tradgard. 
Lund, Botanic Garden. 
Petrograd, Jardin Imperial Botanique de Pierre le Grand. 
Berlin, Dahlem Botanischer Garten. 
Hamburg, Botanischer Garten. 
Bremen, Botanischer Garten. 
Leipzig, Botanischer Garten. 
Heidelberg, Botanischer Garten. 
Dresden, Botanischer Garten. 
Paris, Museum d'Histoire Naturelle. 
Cap d'Antibes, ViUa Thuret. 
Naples, Orto Botanico. 
Catania, Orto Botanico. 
New York, Botanic Garden. 
Ottawa, Botanic Garden. 
Sapporo, University Botanic Garden. 
Also many private collections, such as those of the late Lady 
H ANBURY (La Mortola), E. A. Bowles (Waltham Cross), the late Canon 
Ellacombe (Bitton), H. J. Elwes (Colesborne), F. J. Hanbury (East 
Grinstead), the late Sir Frank Crisp (Henley-on-Thames), Rev. R. H. 
WiLMOTT (Hereford), G. B. Milne-Redhead (Frome), Miss Willmott 
