than the widely distributed L. arenarius, but agrees 
extremely well with the original description of L. stylites, 
and is believed to represent that species, The genus Lisso- 
chilus is rich in ornamental forms; unfortunately, however, 
though suitable for cultivation as garden plants, they are 
not easy to manage. Some, which grow naturally in 
swampy ground, require subaquatic treatment, and at Kew 
species such as L. Horsfallii, L. giganteus and L. Mahoni 
have been brought into flower by planting in large pans of 
peat and sphagnum half submerged during the growing 
period in a tank suitable for Victoria regia, with the water 
at a temperature of about 75° F. Others again, like 
L. Krebsti and L. ugandae, grow well for a time when 
planted in a border of peat in a fairly dry house suitable 
for succulent plants. All the species appear to improve if 
allowed to rest in a fairly dry condition for two or three 
months after the leaves have withered. 
Descriprion.—Herb, terrestrial, erect, 3-5 ft. high. 
Leaves suberect or arcuate, linear-lanceolate, acute or 
acuminate, narrowed to the base, plicate, 24-3 ft. long, 
14-2 in. wide. Scapes erect, 3-5 ft. high; racemes lax, 
about 1 ft. long, 6-9-flowered; bracts linear-lanceolate, 
acuminate, #-14 in. long, spreading; pedicels 1-14 in. 
long. Flowers purple, showy. Sepals reflexed, ovate- 
lanceolate, very acutely acuminate or almost aristate, 1-1} 
in. long, pale green tinged with lilac at the base. Petals 
suberect, wide elliptic or almost suborbicular, obtuse and 
somewhat reflexed at the tip, 1-14 in. long, pale purple. 
Lip widely pandurate or pandurately 3-lobed, 14-14 in. 
long; base widely pouched, pale purple; lateral lobes 
broad, rounded; mid-lobe transversely oblong, obtuse or 
emarginate ; pouch wide, obtuse or slightly dilated at the 
tip, outside white, pale green within, yellow at the tip and 
2-callose, dotted with pale brown; callosities compressed, 
13-2 lin. long, faintly 2-3-lobed at the tip. Column clavate, 
# in. long; anther apiculate; pollinia 4, united in pairs, 
attached when the anther opens by a short stalk to a 
long acuminate rostellar gland. 
Fig. 1, part of lip; 2, column; 3, anther cap; 4, pollinarium; 5, sketch of 
an entire plant:—all enlarged except 5, which is much reduced. 
