THE NAME OF THE GENUS. 45 
can be a Zaemonorops, With this ensemble of characters we can always succeed in 
distinguishing a Calamus from a Daemonorops and in most cases we can do this even 
if the specimens are in a sterile condition, at any rate if they belong to an adult 
plant. 
XXIX.—Calamus or Palmijuncus ? 
Dr. Otto Kuntze in his “ Revisio Generum Plantarum,” p. 173, believes that 
the name Calamus Linn. must give way to that of Palmijuncus Rumph; accordingly 
all the species of Calamus known to the illustrious author are registered in pages 
731-734 of the above quoted work under the generic name of Palmijuneus. As the 
adoption of the latter name involves a vexed question of nomenclature regarding 
which I am unwilling to express an opinion, I have left matters as they have long 
stood. I have only to remark that the substitution ofthe name of Palmijuncus for the 
name Calamus does not help to simplify the already very intricate synonymy under 
Calamus. 
I have therefore continued to use the generic name. Calamus, thinking that 
it will be a quite easy and at the same time a not unpleasant task for some one 
who may take delight in adding his own name to new species, to change into 
Palmijunci all those placed by me under the genus Calamus. 
With regard to this subject, however, I have to point out that the genus Pal- 
mijuncus, as understood by Dr. O. Kuntze, includes both Calamus and Daemonorops, two 
genera which I consider it convenient to keep separate. As Dr. O, Kuntze appears 
to have taken as the type of the genus Palmijuncus the first species published by 
Rumph in the “Herbarium” under that genus, and as the species in question is Palmi- 
juncus Calapparius, which is a typical Daemonorops, the generic name Palmijuneus, if 
resuscitated at all, ought to correspond to the name Daemonorops, and not to the name 
Calamus. 
| XXX.—Geographical Distribution. 
More than 200 species of true Calamus are at present known; these without a single 
exception are natives of the Old World, Their chief home is in the primeval hot 
and humid forests of tropical and subtropical Asia, and of the Asiatic Archipelagos ; 
& few only are African and Australian. 
The regions of the world where Calami are most abundant are:—the Malayan 
Peninsula, with 31 species; Borneo, with 30 species; Burma, with 24 species; Siam, 
Qochin-China and Lower China, with 18 species; New Guinea, with 18 species; the 
Philippines, with 17 species; Java, with 14 species; Southern India, with 12 species; 
Ceylon, with 11 species; Sumatra, with 10 species. After these, arranged in accordance 
with the number of species that they possess, come Tropical Africa, Celebes, the 
Moluccas, the Sikkim Himalaya, the Assam Hills, Eastern Bengal, Australia. | 
The five or six known Australian species are chiefly confined to the coast 
of Queensland and only one, C. Muellerii, extends further south, to the northern 
part of the ccast of New South Wales, where it has been found on the Clarence River 
at about Lat. 29° 30’ S. This is in fact the most southern representative of the 
genus and is the only one that grows outside the tropics in the Southern Hemisphere. 
In the Northern Hemisphere no species of Calamus extends north of Lat. 30° N. - 
C. tenuis, which is one of the most western of the Asiatic species is also the one that - 
