488 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
in its inflated calyx and in the presence in the staminate flower of a 
trilobate pistillodium. The latter character, however, is not men- 
tioned in the descriptions of the known species and apparently does 
not exist in the only flower I have been able to dissect. 
The type species, (. pedunculatum Triana, is known only from 
the middle belt of Colombia, at altitudes of 850 to 1,500 meters, 
with a possible extension to Ecuador. This species was cultivated - 
by Naudin in the gardens of the Museum at Paris and by the 
brothers Huber at Hyéres, and produced at the latter place male 
flowers from which a published illustration * was made. From this 
illustration it may be seen that the calyx segments, of which Co- 
gniaux gives only the dimensions, are broadly rounded-triangular. 
and that the corolla has very short lobes and is slightly longer, or 
at least not shorter, than the corolla. 
In my recent explorations in Venezuela it was my good fortune to 
obtain specimens which at first seemed to agree very satisfactorily 
with the descriptions of C. pedunculatum, but which, on closer ex- 
amination, were found to differ in general pubescence, length of the 
peduncles, and shape of the calyx and corolla, as well ag in certain 
other details. These specimens are described below under the name 
C’. brevipes, and photographic illustrations also are given. 
As a variety villosum, Cogniaux *™ described a collection made by 
Miguel Bang in Bolivia (no. 2244). The specimens are seemingly 
immature; but besides the characteristic indument of the petioles 
and peduncles, which are both remarkably stout, the calyx is larger 
and of a distinct shape and texture, and as the locality of the plant 
is far distant from that of typical C. pedunculatum, it may be in- 
ferred that the Bolivian specimens really represent another specific 
type, to be known as Calycophysum villosum (Cogn.) Pittier. 
A third form, (C. gracile Cogn.,!* has been described from the lower 
Magdalena Valley in Colombia. This is said to differ from the type 
species in the longer subulate teeth of the leaf margin, in the color of 
the calyx, the segments of which are shorter and narrower, and in the 
longer corolla. This difference in the length of the corolla, which, 
if constant, would form perhaps the best distinction between the two 
species, should, however, be considered cautiously. From observa- 
tions upon the living Venezuelan plant I am inclined to believe that 
in the mature stage of the flower the corolla is in all cases longer than 
the calyx and Naudin’s illustration, cited above, shows that in C. 
pedunculatum the corolla is at least equal to the calyx. The size and 
shape of the calyx and corolla, the length of the stamens, and the 
leaf characters seem better to differentiate the two species. 
* Ann. Sci. Nat. IV. Bot. 18: 185. pl. 9. 1862. 
* Calycophysum pedunculatum villogum Cogn. Bull. Torrey Club 23:17. 1896, 
“Bull. Acad. Sci. Belg. II. 49: 191. 1880. 
