284 FOREST CULTURE AND 
This furnishes from its flowers the Neroli oil so deli- 
cious and costly as ascent. It is stated that orange- 
flowers to the value of £50 might be gathered from 
the plants of an acre within a year. The rind of the 
fruit is used for candied orange-peel. Bitter princi- 
ple : hesperidin in the rind, limonin in the seed. 
Citrus dulcis, Volkamer. — The Sweet Orange, of 
which many kinds occur. The St. Michael Orange 
has been Known to bear in the Azores, on sheltered 
places, 20,000 fruits on one tree in a year. Nerolioil 
is obtained from the flowers of this and allied varie- 
ties. i : 
Citrus Bergamium, Risso.—From the fruit-rind of 
this variety bergamot oil is obtained, but also oil 
from the flowers. The Mellarosa variety furnishes a 
superior oil and exquisite confitures. 
Citrus decumana, Linne.—The Shaddock or Pom- 
‘pelmos. The fruit will exceptionally attain a weight 
of 20 pounds. The pulp and thick rind can both be 
used for preserves, 
Citrus, nobilis, Loureiro. — The Mandarin Orange. 
The thin peel separates most readily from the deli- 
ciously - flavored sweet pulp. There are large and 
small fruited Mandarin oranges ; the Tangerine vari- 
ety is one of them. 
Citrus medica, Linne.*—The Citron (in the widest 
sense of the word). Indigenous to Southern Asia. 
For convenience sake it is placed here as distinct 
from the preceding species. As prominent varieties 
of the Citrus medica may be distinguished : 
Citrus Cedra, Gallesio.—The real Citron. From the 
acid tubercular fruit essential oil and citric acid can - 
be obtained, irrespective of the ordinary culinary uss 
