caleare recto, nervis Copiosissime setosis (setis illis ramo- 
rum similibus) atque minutissime pubescentibus in lobu- 
lis appendicibusque, illo sub staminibus interne pubes- 
cente sed ceterum glabro. Petala sex, lilacea, obovato- 
subspathulata, 4-5 X2-2.5 mm. Stamina 11, prope par- 
tem centralem calycis inserta, duo dorsalia brevissima, 
alia longiora, horum tria ventralia glabra cetera pubes- 
centia. Ovarium oblongum, in stylum inclusum, minute 
pubescentem attenuatum. Stigma capitatum. Ovulum 
carnosum, grossum, subhorizontale. Semen immaturum 
suborbiculare, complanatum, carunculatum, margina- 
tum, minute foveolatum. 
It is unfortunate that no mature seeds are available 
for this species, for it is difficult to place the concept, 
which is quite distinct, in any section of the genus. I 
believe, nevertheless, that it belongs to Sect. 5 Brachy- 
andra, Subsect. 2 Melanium, Ser. 3 in Koehne’s system 
(in Engler Pflanzenr. [V. 216 (1903) 82). It would fall 
between Cuphea ciliata Ruiz & Pav. (C. microphylla 
HBK.) and C. fuscinervis Koehne. From the former, it 
differs in its inflorescence and pubescence and in having 
a red median nerve; from the latter, a Brazilian species, 
in its simple inflorescence. 
The specific epithet refers to the locality where the 
type was taken—the Rio Stinuba. 
Cotompia: Departamento de Boyaca, Cordillera Oriental, vertiente 
oriental. Entre Gueteque y Guayata, margenes del Rio Stinuba. Alt. 
1500 m. June 30, 1940, J. Cuatrecasas 9698 (Tyrer in Herb. Field 
Mus. ). 
The other new species of Cuphea herewith described 
belong in Section 6: Huandra, Subsection 2: Hyssopo- 
cuphea in Koehne’s System. 
It is regrettable that in almost all of the material avail- 
able to me the seeds are immature. My studies, how- 
ever, indicate that it is very probable that they would 
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