ON HEDERA CANARIBNSIS AS AN IRISH PLANT. 381 
mer, made another voyage up tlie West Elver, and was so fortunate as 
to find the plant in several places. The more copious and complete 
specimens which he was so good as to place at my disposal have ena- 
bled me to draw up the above description. The species comprised in 
this small genus are sadly in want of a carefiil and critical revision. 
For many years one only was known, split into two by Gsertner, hut 
without the assent of botanists generally. Dr. Wight described four 
new ones, of which he figured two (Icones PI. Ind. Or. tt. 1291-2), 
which Dr. Thwaites has again combined (Enum. PL Zeylan. 191), 
pointing out that it had been already described by Wallich as a Taber- 
ucemontana, Miquel (FL Ind. Batav. ii. 404) adjnits four species fi'om 
the Indian Archipelago, remarking that the plant figured by Wight 
(Ic. t, 849) as O. serpentinum, is scarcely the same as that of Eheede 
and Humphius, on which Linnasus founded the genus. The present 
plant evidently differs from the Ceylon and Neilgherry 0, de^isifonim^ 
by its much smaller corolla-lobes, and seems to approach closest to O. 
serpeutinum ; but, to judge from Dr. Wight's figure, and the descrip- 
tions of authors, and also from a comparison with the only specimen 
in my possession,— a Travancore one, collected by Dr. Wallich, — it 
differs in its dark-coloured bark, narrower and more attenuated leaves, 
looser cymes, and green, not red, pedicels and calyces. None of the 
diagnoses hitherto given suffice for the proper discrimination of the 
species of this genus, nor is it easy to draw up any which will do so. 
Whampoa^ S, Chlna^ 6tk JSeptember, 1865. 
ON HEBERA CANARIENSIS AS AN HUSH PLANT. 
By C. C. Babington, Esq. 
In a recent number of this Journal (p. 201) the Editor announced 
the Sharp-leaved Ivy as a native of Ireland, but upon rather slight 
foundation. He showed the great probability of its being indigenous 
to Ireland, but, as I thought, nothing more. The plant found by the 
late Mr. Hodgens, somewhere in the co. Wicklow, has still to be again 
irathered in that countv- That which grows on walls near Merrion is 
the true plant, but its origin may, I believe, admit of doubt. It is, 
therefore, with much satisfaction that I have it in my power to state that 
true H. Cauarieum srows on old Whitethorn trees in the western 
