JOURNAL 
OF THE 
ROYAL HORTICULTURAL SOCIETY. 
Vol. XLVL 1921. 
AN ACCOUNT OF THE GENUS SEDUM AS FOUND IN 
CULTIVATION. 
By R. Lloyd Praeger, B.A. 
CONTENTS. 
Part I. — Introductory. 
PAGE 
I. Preliminary . . . i 
II. Historical ... 3 
III. Distributional ... 5 
IV. Statistical . . .11 
V. Variation . . . 13 
PAGE 
IX. Characters of the Genus . 21 
PAGE 
VI. Cultivation and Propa- 
gation . . .16 
VII. Sources of material . . 19 
VIII. Notes on the text . . 20 
PAGE 
X. Description of Species . 26 
Index ..... 309 
Part II. — Descriptive. 
PART I.— INTRODUCTORY. 
I. Preliminary. 
It is doubtful if any genus of plants which is widely cultivated is in 
such a confused state in our gardens and horticultural books as is the 
genus Sedum. Even in collections where the owners pride themselves 
on correctness of nomenclature, misnomers and nomina nuda abound ; 
and common species masquerade under many different names. 
This does not arise from any special difficulty in the identification 
of the species of Sedum. Some of the species, it is true, are variable 
and in some of their forms not at once recognizable by the uninitiated ; 
VOL. XLVI. B 
