. desirable that a careful study be made of t 
different countries, and that, if necessary, a complete set of - 
be prepared and forwarded to Kew for ultimate determina 
might be mentioned that the best method for packing the specimens 
the typical stems would be in dry sand, while the prepared and dried 
flowers and fruits should be accompanied by careful c and 
descriptions. : 
SPECIES OF OPUNTIA. 
Originally natives of the American Continent, inhabiting hot E zr 
ae places, the Prickly Pears were doubtless first introduced to the Atlantic 
h 
islands, such as the Canaries and M „an 
have rapidly spread to the Mediterranean regi 
; e Cape, ia i 
usu uu xui Ecos are er ene T 
Tina, TI^ "0. vu garis, ‘Mill, € aW., n igrica an 
O. monacantha, Haw., O. decum ana, es O. Fi cus-indica, Mille 
Opuntia (Nopalea) 'ebecinellifera, Mill. 
: mri cienfictue al. Ithade i 
in all the islands dri previous to the introduction of the i insec P 
iet by Webb that the first introduction of the insect. 
opposed by the country people on the ground of its rendering 
Tuneras or Prickly Pear plants barren and injuring the crops of t 
favourite fruit called Figos, iae are even now much use d, both 
d dried 
puntas sent Haw. [ Bot. Mag., tab. bie) pe a i 
stem, gone free from spines ; the flower is ee 
purple. 
pnta  Dillenii, Haw. {cactus Dillon RE in Bat B 
— À very spiny plant, with a sulphur-yellow fk 
sed generally 
- . the rags im nated with d young insect 
^. tue O. due op L. _Lowe states t rek u of ( 
et ame : NN 
