NOTES 379 
Mr. Thomas Cooper, of Reigate. All these species are still in the 
garden, and some are no doubt the original specimens planted by 
Mr. Daniel Hanbury. In April, 1872, he bought from Mr. 
Pfersdorff, in Paris, a well-known cultivator of succulents:—C. 
Bridgesii, C. chalybeus, C. chilensis, C. Forbesit, C. fossulatus 
(= C. Celsianus), C. geometrizans, C. hexagonus, C. macrogonus, 
C. Spachianus, and C. tephracanthus. Most of these are still 
living, and have grown into fine specimens. 
The collection has been greatly increased in later years by 
exchanges and purchases. A large number of very rare and 
interesting species were presented to the garden, in August, 
1906, by Mr. W. Weingart, of Georgenthal, who has made a 
special study of the genus. Others were received from Dr. A. 
Weber; Mr. J. Sdhrens, of the Botanic Garden, Santiago, Chili; 
Mr. C. Wercklé, of San José, Costa Rica; Mr. Winter, of Bordig- 
hera; Mr. Griissner, of Perleberg; the late Mr. Harry Franck, 
Frankfort-on-Main; Messrs. Haage & Schmidt, of Erfurt, &c., 
also from the Botanic Gardens of Berlin, Kew, Palermo, Paris, &c. 
The large C. giganteus was planted in front of the house on 
April 24th, 1904. It was procured from Belgium as a large 
cutting without root, and planted in pure charcoal, where it soon 
took root. It was then 1:50 m. high, and now (January, 1912) 
measures 2°10 m., with a circumference of 1:20 m. 
The genus Cereus, as originally established by Miller, includes 
a great number of very different plants. In 1905 I published a 
systematic revision of the genus, based chiefly on observations 
made on the plants at La Mortola. In this paper * I established 
some twenty-three natural sections founded on characters of flower 
and fruit, with which the vegetative characters admirably com- 
bine; many of them occupy well-defined geographical areas. 
Later on Professors Britton and Rose} raised these subgenera 
and sections to genera. 
CESTRUM. 
A genus comprising many interesting and sometimes very 
handsome and freely flowering shrubs. C. elegans and C. fasct- 
culatum were first introduced at La Mortola from Hyéres in De- 
cember, 1867. They are much alike in general appearance and in 
their flowers, but may be easily distinguished. C. elegans has a 
graceful habit, the flowers hang from long and slender branches, 
the leaves are longer, narrower and more acute, and the racemes 
are longer, without bracts or nearly so. C. fascrculatwm has 
more upright branches, broader and less acuminate leaves, the 
flowers in more globular racemes surrounded at their base by a 
number of small leaf-like bracts. 
* Alwin Berger, ‘‘ A Systematic Revision of the Genus Cereus Mill.,” 
published in Report Miss. Bot. Gard. 1905, pp. 57-86, plates 1-12. 
+ N. L. Britton and J. N. Rose, ‘‘ The Genus Cereus and its Allies in North 
America,’’ published in Contributions from the United States Nat. Herbarium, 
xii. part 10, pp. 413-437, plates 61-76 (1909). 
