EUCALYPTUS TREES. 579 
new varieties, however delightful to the eye, yet per- 
haps only slightly larger or tinged rather differently 
to those which we had before? Let us, according to 
our means, extend our patronage to all that is bril- 
liant as a mere flower, but not to the exclusion of 
grander aims. Of the charming Darwinia we might 
secure 23, some most exquisite ; of Verticordia 37; of 
Calycothrix 34; of Thryptomene and other Heath Myr- 
tles 49. This brings me to the allied Baeckeas with 
54 species, the splendid Calothamni and Beaufortias, 
both together 45 species ; Melaleuca and Callistemon 
107 species ; Leptospermum, Kunzea and allied gen- 
era with 57 species. Numerous of the Heath Myr- 
tles found their first elucidation in the Botanic Gar- 
den of this city. But be it well understood that I 
do not wish altogether to discard the gorgeous acqui- 
sitions, which we owe to patient horticultural skill, 
even in a botanic garden. Let me, as an instance of 
phytologic requirements in this respect, adduce the 
genus Pelargonium. Its hybrid forms are now un- 
countable, and I should be sorry to banish these gaudy 
plants ; still, 160 specifically distinguishable Pelargo- 
nia exist in South Africa, their main geographic 
area, and IJ shall sadly regret if the pure original and 
at the same time attractive and lovely forms of the 
genus, from which the garden hybrids all gradually 
sprung, were to be entirely superseded in preference 
to the latter. 
“First follow nature, and your judgment frame 
By her just standard, which remains the same, 
Unerring nature is divinely bright, 
One clear, unchanged and universal light ; 
Life, force and beauty must to all impart 
At once the source, the end, the test of art.’’-—Porz, 
