306 MR. W. B. HEMSLEY ON SOME 
PrarE XIV. 
Bulbophyllum tardeflorens, Ridl. 
. Entire plant, reduced. 
. Flower and rhachis, natural size. 
. Lip, enlarged. 
. Column, from front. 
Prare XV. 
Porphyroglottis Maxwellie, Ridl. 
wm Co bo — 
Fig. l. Entire plant, reduced. 
. Portion of flower raceme, natural size. 
. Flower, side view, natural size. 
Column, side view. 
. Column, front view. 
. Pollinia, enlarged. 
. Pollinia, side view. 
STD oP G tO — 
Some Remarkable Phanerpgamous Parasites. 
By W. Borrine Hemsity, A.LS., F.R.S. 
[Read 20th December, 1894.] 
Waira the permission of the Director of the Royal Gardens, Kew, 
I have brought specimens of some highly curious examples of 
parasitism of phanerogamous plants which, I think, may interest 
ihe Society. I do not pretend, however, that these are all new 
facts. On the contrary, I have brought together a number of 
interesting phenomena from widely scattered sources. I may 
mention, in passing, that the Loranthaces, the order to which 
most of them belong, are cosmopolitan in warm and temperate 
regions, and the genera Loranthus and Visem have nearly the 
same range as the order, except that they are replaced by closely 
allied genera in North America. 
The first I have to show is Loranthus aphyllus, Miers, a Chilian 
species parasitic on Cereus Quisco, C. Gay, one of the large 
columnar Cacti. These specimens were presented to Kew by 
Mr. J. W. Warburton, of the British Consulate General at Valpa- 
raiso, who writes to the effect that he had examined thousands of 
plants, and they were invariably in the same position on the host, 
that is to say, in the axils of the cushions of prickles or spines—the 
same position in which the flowers are produced. Referring to 
Gay’s ‘ Flora Chilena’ (iii. p. 154), I find the statement that this 
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