and on the nerves beneath, ofa palish green colour. Pedun- 
cle terminal, enveloped by the base of a large floral leaf, 
glabrous. Flower solitary, large, very handsome, of an 
almost uniform purple colour, the two lateral or lowermost 
segments of the perianth, (which are united, except at the 
extremity, and adpressed to the underside of the labellum,) 
alone being greenish brown: Uppermost segment reflexed, 
large, broadly ovate: two inner ones broadly lanceolate, 
spreading, or slightly reflexed, dotted and hairy at the base 
within, and beautifully marked with deeper lines of purple. 
Labellum very large; inflated, broadly oval, striated and 
reticulated, the mouth contracted and crenated with a white 
margin: within at the base it is spotted with purple, and 
hairy. Column bent downward into the mouth of the 
labellum. Anthers large, roundish oval, deep brownish- 
green, two celled, bearing on the lower part of the back a 
softy, fleshy spur. _Abortive one, a flat, minutely glandular 
disk, pedunculated: from the back of which arises the 
elongato-cordate, petaloid lobe, of a pale reddish colour. 
Germen elongato-clavate, sharply angular. 
This beautiful species of Cypripeprum, quite new to our 
collections, is said by Amman to be found at Tobolsk, and 
hy Cat, to be peanent in all Siberia, within fhe 58° of 
atitude, in open places, or in w d of scatter 
Rirches pen p oods compose 
_ Seeds had often been sent by Dr. Fiscuzr of St. Peters- 
burg to the Glasgow Botanic Garden; but we nevel 
succeeded in cultivating the plant until last year, when 
roots were presented to us by the same liberal Botanist. 
One of these, from which the present figure aud descrip- 
tion were made, blossomed under tlie protection of a frame 
in May, 1829. 
C. macranthon appears to be nearly allied to the ©. ven- 
éricosum, which I only know by the Aare of Sweet's Brit. 
Fl. Garden , New Series, t.1. But there the two inner 
segments of the perianth are much narrower, and longer! 
than the lip, the mouth of the lip is larger, and with a si 
cleft at the lowest extremity, and is not so regularly note 
s ms in our plant. The whole colour too is a deep 
urple. 
—— el 
Fig. 1. Perianth, from which the Labellum (f. 2.) is removed. 3, Back 
view of the Column. 4, Front view of ditto. 5. xe view of ditto, slightly 
magnifigd. —Fig. 1, 2, 3, and 4, are represented of the nat. size: 
