8 ADDISONIA 
lobed, the lobes not or very little spreading. The disk is represented 
by only two posterior lobes; these are coherent or panes separated, 
ovate or oval, with an entire or slightly notched sum 
This species occurs in the mountainous or hilly country of tropical 
Brazil, and has been introduced to cultivation, where it exhibits 
considerable variation, especially as to its hairiness. The specimen 
here figured was grown at the New York Botanical Garden from 
tubers collected in the Organ mountains of Brazil by J. N. Rose in 
1915 
The genus Gesneria, with which this species has commonly been 
associated, and with which it agrees in habit, contains half a 
hundred species, distributed from the mountains of Brazil westward 
into the Andes and northward through Colombia into the West 
Indies. They favor shaded locations in rich woodland soil and 
amidst decaying vegetation. In the Andes they usually occur 
among begonias, oxalis, and terrestrial orchids, as well as with 
other gesneriads. They usually occur in colonies and, with their 
handsome scarlet flowers, form showy small patches against the 
forest hillside. 
From Gesneria Decaisne separated the genus Dircaea chiefly on 
the basis of its long upper lip, which conspicuously distinguishes 
it from the true gesnerias. With this view the present writer feels 
constrained to agree. 
H. H. Russy. 
EXPLANATION OF Pate. Fig. 1.—Plant, much reduced. Fig. 2.—Flowering 
stem. Fig. 3—Flower, front view. Fig.4—Stamens. Fig, 5.—Pistil. Fig. 6. 
—Ovary, showing disk, X 2 
