34 PINES 
it has not a place among its varieties, instead of being 
starred alone in the pride of an independent species. 
A smoother bark and more slender branchlets are all 
its claims to isolation, and it is for this that the more 
lowly intelligence of the lesser-endowed tribunal, 
composed of Mankind in the Street, has to bow before 
the decision of the superior court of appeal. 
The P. Hartweci.—Although it is nothing else than 
the Montezuma of the north, and representative of 
higher regions and colder climes, it can produce many 
a testimonial in favour of its claim to a separate title. 
It has shorter leaves and a hardier constitution than 
the more tropically inclined Montezuma, and seems 
to be able to thrive in any English climate, favoured 
or unfavoured, as the authorities divide them. Where 
the Montezuma can only just poke up his nose, imbibe 
with distaste a little winter air, and then ingloriously 
die, the Hartwegii, like the green bay tree of the 
Psalmist, flourishes in the rudest appearance of 
unchecked health. 
George Russell Shaw, in a U.S.A. Arnold Arboretum 
publication, mentions some eighteen species of Mexi- 
can Pines. Upon about half of these we have received 
our instructions from authoritative writers on Conifers. 
The P. Oocarpa takes after the Montezuma in the 
number of leaves per bundle, while seven or so of 
these Mexicans take after the P. Patula in that 
direction, and sometimes other respects. They may 
be found and seen, eg. the P. Nelsoni, Teocote, 
Leiophylla, Greggi, in the Temperate House at 
Kew. Whether they take after the Montezuma and 
Patula, or the Montezuma or Patula after them, from 
a patriarchal-system point of view, is a question 
better settled upon outside the radius of our shores: 
There are other Mexicans besides these, cropping 
up at intervals, and inviting attention, but they have 
