interesting to recollect that a very similar experience has 
been recorded in Gartenflora for 1880 on the part of the 
Imperial Botanic Garden, Petrograd. There, in June, 
1879, after a corresponding interval, plants of P. foliata 
made their appearance in association with a Centaurea. 
The difference in this case is that roots, not seeds, of the 
host, which had come from the Caucasus, were planted 
in the first instance. The combination of the bright 
scarlet flowers of the parasite with the silvery grey 
foliage of the host is singularly attractive, and one 
marked feature of the partnership in the Kew case has 
been that the health of the host, so far as may be judged 
by its appearance, has remained unimpaired. 
DESCRIPTION.—J/erb, parasitic, leafless. Stems simple, 
rather stout, glandular-puberulous especially in the upper 
half, reddish, 1-14 ft. high. Scales ovate-oblong, obtuse, 
stem-clasping, scattered on the lower half of the stem 
and fairly wide apart, papillose-puberulous or glabrous. 
flower solitary, terminal, ebracteate. Calyz campanu- 
late, 3-1; in. long, unequally 5-lobed, usually somewhat 
2-lipped and more deeply divided between the 3 upper 
approximate lobes and the two lower; lobes oblong or 
ovate, obtuse, more or less glandular-papillose through- 
out, or glabrescent upwards, deep-red or chestnut-brown. 
Corolla ringent ; tube widely and obliquely campanulate, 
at length incurved, 2-1 in. long, orange flushed with red 
outside, and sparingly papillose upwards, pilose in the 
front of the throat down to the attachment of the 
- filaments; limb 2-lipped, lobes of each lip subequal, 
rounded, those of the upper rather smaller than those 
of the lower, }-1 in. across, reddish-yellow outside,. 
brilliant crimson within, the throat with 2 black hirsute 
spots. laments glabrous; anthers mucronate, + in. 
long, glabrous. Ovary glabrous; stigma wide-discoid, 
subentire. Capsule wide-ovate, nearly 4 in. long. 
Fig. 1, portion of interior of corolla-tube, showing the attachment of the 
stamens ; 2 and 3, anthers; 4, pistil ; 5, sketch of entire plant with its host :— 
all enlarged except 5, which is much reduced. 
