86 ) 
kinds to demonstrate, that we may add by their introduction 
to the variety of our odorous garden herbs. They may also 
be suhiected with advantage tc distillation. 
Pyrularia edulis, Meissner. 
ISTepaul, Khasia, Sikkim. A large umbrageous tree. The 
drupaceous fruit is used by the inhabitants for food. A few 
other species occur in Upper India, one on the high moun- 
tains of Ceylon and one in North America. The latter, 
F. puhera, Mich., can be utilized for the oil of its nuts. 
Pyrus coronaria, L. 
The Crab-Apple of North America. This showy species is 
mentioned hme as worthy of trial- culture, since it is likely, 
that it would serve well as stock for grafting. It seems 
unnecessary to refer here to any of the forms of Pyrus 
communis, L., P. Malus, L., P. Oydonia, L., and P. Ger- 
manica, J. Hook. (^Mespilus Qermanica, L.), hut it may pas- 
singly he observed, that curious fruits have been produced 
latterly in North America by the hybridisation of the Apple 
with the Pear. A bitter Grlycosid, namely Phlorrhizin, is 
obtainable from the bark of Apple and Pear Trees, particu- 
larly from that of the root, while a volatile Alkaloid, namely 
Trimethylamin, can he prepared from the flowers. 
Quercus Mong'olica, Pischer.* 
Mandschuria. One of the two species, on which mainly (if 
not solely) the silk insect peculiar to Oak trees is reared, 
as shown by Dr. Hance. Q. serrata, Thunb. (Q. ohovata, 
Bunge), the second of the principal Oaks for the production 
of silk, has been mentioned previously in the Accli- 
matisation Society’s list of trees yielding timber, and has 
through the exertions of the writer found its way already to 
Australia. 
Eafnia amplexicaulis, Thunberg. 
South Africa. The root of this bush is sweet like Liquorice, 
and is administered in medicine. Bafnia perfoliata, 
E. Meyer, also from South Africa, furnishes likewise a 
medicinal root. 
