196 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
scribing four new species, which are well illustrated with hand- 
colored plates. The best monograph of Voyria (including Leiphaé- 
mos) is that of Progel in Martius’s Flora Brasiliensis,? where twenty- 
one species are keyed and described, and six figured. Gilg, in Engler 
and Prantl’s Natiirlichen Pflanzenfamilien,® divides the genus into 
five sections or subgenera, under which he enumerates most of the 
species, seven of which are figured. 
Of the eight species here listed from Panama, six are described 
as new. The large number of new forms is not remarkable, since the 
material studied comes from a more northern region than any in 
which a considerable number of species have been collected. One 
species, described from Panama by Griesbach, is known to the 
writer only from description, while two Panamanian specimens seem 
to belong to a species described by Karsten from Venezuela. 
KEY TO THE SPECIES. 
Calyx limb wanting. Corolla blue, the tube 3 times as long as the lobes; scales 
one on each stem____ eee 7. L. simplex. 
Calyx limb present. 
Ovary bearing 2 stipitate glands at the base; corolla blue_____ 8. L. azureus. 
Ovary without glands; corolla not blue. 
Corolla lobes obtuse. 
Filaments many times longer than the anthers; flowers long-peduncu- 
late; corolla tube gradually dilated upward____6. L, pulcherrimus. 
Filaments about as long as the anthers; flowers subsessile; corolla tube 
cylindric, slightly dilated in the throat____________ 1. L. Truncatus. 
Corolla lobes acute. 
Flowers numerous, in a compact terminal corymb___________ 4. L. albus. 
Flowers solitary, or few and the stems fastigiately branched. 
Anthers appendaged at the base; stems fastigiately branched at the 
base _---_-_--_--_-- 5. L. thalesioides. 
Anthers not appendaged; stems usually simple and one-flowered. 
Anthers subsessile; corolla tube twice as long as the calyx or 
shorter__--------ee 2. L. stellatus. 
Anthers on long slender filaments; corolla tube 3 times as long as 
the calyx_.-_----------__--- 3. L. pittieri. 
1, Leiphaimos truncatus Standl., sp. nov. 
Stems very stout, erect, 3 to 3.5 em. high, fasciculately branched at the 
base, the branches simple or again branched, closely covered with scales but 
these not imbricate; scales opposite, 3 to 5 mm. long, rounded or acutish at 
the apex, connate for half or two-thirds their length, the sinus between the 
two bracts very broad, the bracts ascending; pedicels very short, 4 mm. long 
or less, 1.5 mm. thick; calyx cylindric-campanulate, 6 mm. long, 3.5 mm. in 
diameter, the 5 teeth broadly ovate, obtuse, minutely ciliolate, scarcely 1 mm. 
long; corolla apparently pale yellow, the tube cylindric, 3 cm. long, 2.5 mm. 
* Tijdschr, Nat. Gesch. 7: 129-139. pls. 1, 2. 1840. 
* 6°: 219-226. pl. 60, figs. 8-5, pl. 61, figs. 1-8. 1865. 
*4*: 104-105. jig. 46. A-M, S-Y. 1895. 
