36 
TORENIAS. 
they must be most effectively drained and freely supplied with 
water in dry weather. Syringing every day is also highly bene¬ 
ficial ; in a close warm atmosphere their progress is amazingly 
rapid, and good plants may be formed in a very short time, hut 
I would advise, when they are grown to a moderate size, not to 
indulge them longer in it, but to remove them to the greenhouse 
or open air where their action is modulated, a tendency to bloom 
more fully induced, and an additional lustre imparted to the 
colours of the blossoms. 
When grown under glass, it may be also advisable to slightly 
shade them from excessive light, especially from the direct rays 
of the sun, that the duration of their flowers may be lengthened 
and a deeper green imparted to the leaves. 
Through the winter I have found it necessary to keep them 
rather warmer, than the robust character of the summer’s growth 
led me to think would be required ; they entirely refused to stand 
in the greenhouse even in its warmest part after the end of No¬ 
vember, and I then found the stove must be their future habita¬ 
tion ; on their removal a marked change in their appearance took 
place, and since then they have gone on most satisfactorily, and 
I have been able to increase their number a little, though with a 
good deal more trouble, as may naturally be supposed than at a 
more advanced period of the season. 
I believe I am right in including three other species in the 
genus: Torenia cordifolia 3 an old hardy annual from the East 
Indies, now pretty nearly lost to our gardens; T. hirsuta, the 
torenia diffusa of Don and gratiola alata of Roxburgh, a 
plant resembling those spoken of in most respects, but inferior 
in beauty ; these with the new T. edentula , which I see by the 
Journal, was obtained at Kew accidentally from seed which came 
up on some East Indian mould,—it approaches T. Asiatica nearest, 
but has only two blotches. Whether the plant, so well known 
as Torenia scabra, should be continued in the genus, or if it was 
correctly separated by Don is, I believe, yet a matter on which 
some difference of opinion exists; the name he employed is 
Artanema Jimbriata, thus constituting through it, an entirely new 
genus. H. P. 
