S. discolor is a native of moist valleys in the Peruvian 
Andes, where it was discovered by Humboldt and Bonpland 
in the valley of the river Guancabamba, at an elevation of 
6000 feet. It is not known where Mr. Cannell’s specimens 
were procured ; that figured here flowered in a greenhouse 
of the Cambridge Botanical Gardens in February, 1883. 
Drscr. Stem three to four feet high, terete, clothed with 
dense white tomentum, as are the petioles, leaves beneath, 
and inflorescence. Leaves three to five inches long, narrow — 
ovate-oblong, obtuse or subacute, base rounded, above dull 
green, nearly glabrous, nerves beneath closely reticulate; 
petiole one to two inches long. Racemes terminal, very 
long-peduncled, one to two feet long, inclined, many- 
flowered ; flowers in distant whorls of four to eight, very 
Shortly pedicelled. Calyx three-fourths of an inch long, 
tubular-campanulate, hoary-tomentose, striate, two-lipped 
to the middle or one-third way down; lips erect, triangular- 
ovate, subacute, upper entire, lower entire or acutely two- 
fid. Corolla deep violet-blue, paler on the tube and throat; 
tube slightly decurved, rather longer than the calyx, gibbous 
on the throat below the upper lip ; upper lip narrow-oblong, 
obtuse, one-third of an inch long; lower longer, subquad- 
rate, two-lobed, spreading. Stamens included, lower arm 
_ of the connective straight, as long as and in the same line 
with the upper, glandular, cylindric, subacute, upper glabrous 
columnar ; anthers linear-oblong. Disk very large, produced 
_ behind and there overlapping the small nutlets.—J/. D. H. 
Fig. 1, Corolla; 2, stamen; 3, disk and nutlets -— aZ/ enlarged. 
