following are diagnostic characters of the five above named 
species. 
S. aurea; surfaces of sepals concolorous, lateral lobes 
of lip linear falcate, basal lobules villous within; leaves 
three feet long by one and a half inches broad. 
S. gracilis; surfaces of sepals concolorous, lateral lobes 
ee 
of lip oblong-spathulate, or oblong-truncate, basal lobules — 
within and lateral teeth villous, leaves two inches broad. 
S. Kimballiana ; dorsal surface of sepals mottled with 
red-brown striz, Jateral lobes of lip broadly ear-shaped, 
basal lobules and teeth glabrous; leaves one to one and a 
half inch broad. 
S. Wrayi; surfaces of sepals unrecorded, lateral lobes | 
of lip linear-oblong, basal lobules and teeth glabrous; 
leaves one and a half inch broad. 
I have not taken into account the form of the terminal 
lobe of the lip, which appears to be very variable. — 
Reichenbach says of that of aurea, * mid partition of apex 
of lip subject to greatest variation, narrow and acute, or 
broad, or very broad and simply retuse, or 3-toothed.” 
8S. Kimballiana was named by Messrs. Sander in com- 
pliment to the late Mr. W. S. Kimball, of Rochester, — 
U.S.A., Nurseryman, who is described in the Gardeners 
Chronicle (1895, vol. i. p. 497) as famous for his collections - 
of pictures, china, and articles of vertu; and especially — 
for his four hundred species and varieties of Cypripedium. — 
“In his great Orchid House, which is open daily to the 
public, five thousand plants of this Order may be seen 1) _ 
bloom at one time.” 
The specimen of 8. Kimballiana here figured was ob- 
tained from Messrs. Sander & Co. in 1890. It flowers 
every Spring in the warm Orchid House of the Royal 
Gardens.—J. D. H. 
Fig. 1, Portion of lip; 2, column; 3, anther; 4, pollinia :—A// enlarged. i 
