280 THE ORCHID REVIEW. [SEPTEMBER, 1903. 
THE GENUS CHLORACA, 
WirtH respect to the conditions under which these remarkable plants 
grow, and to which allusion was made at page 133, some interesting 
information is given in the Botanical Magazine, where C. longibracteata 
has just been figured (t. 7909):—‘‘At Mr. Burbidge’s request, Mr. 
Warburton furnished the following particulars of the conditions under 
which Chlorea longibracteata grows wild:—‘ Unless I confuse two 
kinds of Orchids, it is the commonest Orchid I found. The ground rises 
very rapidly from the sea shore, and is much broken into glens (quebrada) 
full of scrub and very rocky. The ground is all granite or granitic, and the 
surface much decomposed. Here and there you come across little plateaux 
among the rough slopes and rising ground, with very little soil on them, 
formed of disintegrated granite, clay, and gravel. These plateaux usually 
have a very spare vegetation upon them, consisting of bulbous plants, 
Orchids, a little grass, &c. Near the tops and on the tops grow what my 
friends and I call the green Orchis in hundreds. It always seemed to us 
that they grew in what were about the driest places possible, where the 
ground was so hard that it was difficult to dig them up with a garden 
trowel.’ Mr. Warburton goes on to say that this Orchid, and other less 
abundant species, were usually of stunted dwarf growth, owing to the 
great dryness of the soil, and the cultivated plants were much more 
vigorous. Evidently, then, this is one of the numerous instances in which 
plants are not found growing naturally where the conditions are most 
favourable to full development.”’ 
It may be added that the genus isa large one, ranging from South 
Brazil to South Patagonia, and it is not at all likely that the whole of them 
grow under identical conditions. 
ap 
La&uia X aMa@na (L. Dayana X L. anceps Stella). Two plants of this 
hybrid, raised in the collection of E. V. R. Thayer, Esq., S. Lancaster, 
Mass., by Mr. E. O. Orpet, were exhibited at a meeting of the 
Massachussetts Horticultural Society on August 30th, 1902. They are 
described as of “‘ widely different colouring, one being remarkable for its 
deep purple-crimson throughout the whole flower, while in the other form 
this rich colouring was only present in the lip, making a pleasing contrast 
to the lighter rose sepals. It is a plant that shows the L. anceps plainly in 
the growth, but the flower stem is reduced from that of the length of L. 
anceps to a height of about 12 inches, while Lelia Dayana leaves its 
impress plainly in the rich colouring of the lip, which also has the raised 
deep purple lines of L. Dayana.”’—T rans. Mass. Hort. Soc., 1903, P- 15% 
