104 ABOUT ORCHIDS. 
a heavy bill for coke. The cool-house, in general, 
requires a fire, at night, until June 1. Under that 
condition, if it face the south, in a warm locality, 
very many genera and species classed as inter- 
mediate should be so thoroughly started before 
artificial heat is withdrawn that they will do 
excellently, unless the season be unusual. 
Warm orchids come from a sub-tropic region, or 
from the mountains of a hotter climate where 
their kinsfolk dwelling in the plains defy the ther- 
mometer; just as in sub-tropic lands warm species 
occupy the lowlands, while the heights furnish 
Odontoglossums and such lovers of a chilly atmo- 
sphere. There are, however, some warm Odonto- 
glossums, notable among them O. vexdllarium, which 
botanists class with the Miltonias. This species is 
very fashionable, and I give it the place of honour ; 
but not, in my own view, for its personal merits. The 
name is so singularly appropriate that one would 
like to hear the inventor’s reasons fortransfiguring it. 
Vexillum we know, and vexrillarins, but vextllarium 
goes beyond my Latin. However,it is an intelligible 
word, and those acquainted with the appearance 
of “regimental colours” in Old Rome perceive its 
fitness at.a glance. The flat bloom seems to hang 
suspended from its centre, just as the vexcllum 
figures in bas-relief—on the Arch of Antoninus, for 
