lateral petals considerably longer than the rest, linear-lan- 
ceolate, spirally twisted, all of them downy at the base 
within. Labellum standing forward horizontally, bright 
yellow, veined, and furrowed at the veins, oval, convex 
below, yet somewhat flattened, above decidedly depressed, 
the mouth somewhat elliptical, blotched with red at the 
margin as is the inside. Column short, cylindrical; its peta- 
loid lobe cordato-triangular, fleshy, keeled below, grooved 
above, bright yellow, greenish in the centre, and spotted 
with red. Stigma stalked, greenish, on each side of which 
is a horn-like process, bearing each a sessile anther, with 
two cells, and a waxy, or horny-like pollen. Germen curv- 
ed, not twisted, downy, cylindrical, sulcate, tapering into 
the stalk. 
I have been much gratified in the early part of the present 
month (May, 1830,) with the beauty and variety of CypripeDtA, 
and the numerous specimens of each kind, flowering under a com- 
mon frame in the Glasgow Botanic Garden, at one and the same 
time. C. macranthon, humile, spectabile, arietinum, pubescens, 
and parviflorum, seemed to vie with each other in the rich 
colours, or curious structure of their blossoms. The two latter 
I had now the opportunity of comparing in a living state, and 
of ascertaining that, however difficult it may be to discriminate 
between them in the dried specimens, they were now at once to 
be recognized by the form of the labellum and the upper petal of 
the corolla. Wui1LipENow makes the only distinction to exist In 
the lobe of the column, which I find to be the same in both, or 
to possess only occasionally trifling differences. The lip in both 
is said to be compressed; but they are so in a very different 
manner. That of C. pubescens (whose whole flower is con- 
siderably larger and paler coloured) is remarkably convex, a8 
gibbous above as below, (see fig. A.), and only /aterally com- 
pressed, whereas the same part is in our plant somewhat 
flattened below, remarkably so above, and consequently broader 
from side to side, than it is from top to bottom. In C, pu- 
bescens, the upper petal is longer, lanceolate, and much atten- 
uated, and its blossoms are scentless; in the present individual, 
the upper petal is broadly ovate, acuminated, the bases of 
the petals are less hairy, and the flowers yield a powerful and 
delicious fragrance. Our roots were sent from Canada. 
C. parviflorum of Old Series of Bot. Mag. t. 911, should assur- 
edly be referred to C. pubescens, and should be thus characterized: 
C. pubescens ; Wixup. caule folioso, lobo columne trian 
acuto, labello petalis breviore subtus superneque conveX0" 
_ gibboso lateraliter compresso. 
C. parviflorum. Curt. Bot. Mag. t. 911. 
— 
Nore. It ought to have been stated when describing Tritium erythro" 
carpum in a late number (vid. t. 3002) that the plant erroneously figu 
. —a by Mr, Curtis, t. 855, is Trituium grandiflorum, as D 
