180 
CALYCIFLOIt/E. 
of cochineal is brought from inland situations and not from 
the immediate vicinity of the ports, from whence it is 
shipped. The district of Gautemala producing the cochi- 
neal is 84 miles from the sea, and the district above al- 
luded to in Mexico is much farther. 1 am confirmed 
in this opinion by an unsuccessful attempt to esta- 
blish a cochineal plantation by a recent Governor of 
Curagoa ; where, after a large expenditure, the attempt 
was abandoned, as only a few barrels were obtained from 
a very extended cultivation. 
I may add that according to Humboldt there are two 
sorts of cochineal ; one the grana fma, which is mealy, 
being as it were covered with a white powder ; and the 
other the Sylvester or wild, resembling our Jamaica sort, 
enveloped in a kind of cottony stuff’, which prevents the 
rings of the insect being seen. 
4. Opuntia Pseudo-Tuna. Large-jointed 
Opuntia. 
Erect branched, joints obovate compressed 
thick very large, setaceous fascicules distant, 
setm flavescent collected in a pencillaled manner 
with the lowest one strong subulate. 
Salm — Dyck. Obs. Bot. 1822. et in litt. 1827. 
HAB. Port-Roval mountains. Vicinity of Kingston. 
FL May. 
Stem about 5 feet in height. Joints large, rounded at 
the apex, narrowing at the base, light green ; fascicules 
of bristles deciduous, the lower ones more permanent, 
situated in excavations, arranged in a quincunx. Flowers 
yellow, resembling those of O. Tuna, but larger. Sta- 
mens numerous, with the pollen abundant. Stigmata 7, 
green. This species is readily recognised by the large 
thick unarmed joints, and yellow flowers. 
IV. Pereskia. 
Sepals many, adnate to the ovary. Petals as 
in Opuntia. Stamens oo , much shorter than the 
petals. Style filiform : stigmata spirally aggre- 
gate. Berry globular or ovate : seeds nidulant 
in pulp. 
