330 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
for, as far as I am personally concerned, I have attempted the operation 
for more than three years without success, between Tillandsia Lindeni 
major (Hort.) and Tillandsia Lindeni vera (William Bull). Whatever 
botanists, and particularly the great explorer M. Ed. André, may say, 
these two plants appear to me very distinct, if not by their reproductive 
organs, at least by the conformation of their inflorescence and their out- 
ward form, which is so very different that it is practically impossible to 
mistake them for each other. After more than sixty unsuccessful 
experiments in fertilisation, | was at last fortunate enough to obtain two 
pods of seeds, which, sown in good condition, produced thirty or forty 
seedlings, the greater part of which died the first year. Out of the ten 
plants which remained I had the pleasure of seeing one of them, after 
six years from the time of sowing, give its inflorescence, which is exactly 
intermediate between the two parents, as indeed the whole plant is. 
For example, the spathe of Tillandsia Lindeni major raises itself erect 
above the foliage, supported by a long flexible stem: its appearance is 
that of a spatula, slightly bent and hollowed like a spoon, coloured only 
on one side with pale pink. The flowers are blue and of medium size. 
Tillandsia Lindeni vera is not nearly so strong a plant as Tillandsia 
Lindeni major (William Bull). It has an inflorescence shaped like a 
spatula, but larger than that of Tillandsia Lindeni major. It is supported 
by a rather short peduncle, and shows a tendency, to droop as though 
bent down by its own weight. Its colour is rather bright pink, but on 
one side the flowers are blue, large, and of short duration. My seedling, 
which I named Tillandsia Duvali, is exactly intermediate between the 
two parents : the foliage partakes of the nature of both T. Lindeni major 
and T’. Lindeni vera. The erect and solid spike stands well above the 
foliage on a stalk about 6 inches in length. It is as strong as that of 
Tillandsia Lindeni vera, and has a peculiar characteristic in being 
coloured on both sides with bright pink. I believe it is the first time a 
hybrid obtained from the Tillandsias has been seen which has been 
sown and cultivated in Europe. All my attempts to fertilise the Til- 
landsias of the type Lindeni, Regeliana, &c., with Vrieseas, and vice versa, 
have failed. For the present it would, therefore, appear to be advisable 
to make two distinct sections :—1st, Vrieseas, properly so called; and 
2nd, Tillandsias. 
Another class of Bromeliads which are very difficult to cross with 
each other are the Caraguatas, especially Caraguata cardinalis. What- 
ever may be the opinion of botanists, I absolutely refuse to regard 
Caraguata cardinalis as a mere variety of C. lingulata splendens. These 
two plants appear to me quite different, not only as regards outward 
appearance, but by the extreme facility with which Caraguata lingulata 
splendens fertilises itself without any artificial means; whilst on the 
other hand it has hitherto been impossible to obtain seeds on Caraguata 
cardinalis. I have myself attempted the operation without any success ; 
and if I have at last succeeded in getting two capsules of seeds on a 
Caraguata cardinalis, it is by fertilising it with the pollen of a Cara- 
guata lingulata splendens. It is, moreover, the same with Bilbergia 
Rhodocyana, a very fine species, and greatly valued from a horticultural 
point of view: its fertilisation is exceedingly difticult—in fact almost 
