SCROPHULAREOUS PLANTS. 
197 
than those of the seed-bearing plant. It does not blossom till 
May, and therefore, when danger from frost is entirely past, the 
opportunity of testing its hardihood beyond ten degrees of frost 
has not yet, from its scarcity, transpired, though we do not 
doubt its capacity to withstand the severest weather ; for, as 
before remarked, it is only in the blooming season we apprehend 
any danger to these plants, with the single exception perhaps of 
the Nepal species just mentioned, R. arboreum. This plant, if 
subject to severe frost, loses its foliage, but it is not so with 
any other that has yet come under our notice. 
With regard to the accompanying plate, we regret exceedingly 
that our artist has failed to catch the peculiar velvet stiffness and 
substance which belong to the flowers. Their petals more 
closely resemble in form and consistence those of a lily than 
the wavy representation given; but they had been cut some 
time when he received them, and hence his usual felicity was 
unavailing. 
The name attached to this variety is intended to convey a 
sentiment of esteem and respect to a gentleman (J. Butler, 
Esq., of Woolwich), whose spirited exertions in the cause of 
horticulture are justly valued by all who have the privilege of 
knowing him. 
Editor. 
A FEW SCROPHULAREOUS PLANTS. 
Following the example of your correspondent of last month, 
Mr. W. Robertson, and appreciating his endeavour to rescue a 
few really deserving plants from oblivion, I would beg, in fur¬ 
therance of so laudable an idea, to mention some belonging to 
the handsome order Scrophularinese, which appear to me well 
calculated to repay our best attention, though but seldom met 
with in ordinary collections. What could have banished from 
our greenhouses such plants as Pedicularis, Isoplexis, Manulea, 
Castilleja , and some others of like character, I am at a loss to 
understand. It is true we retain some representatives of the 
