YUNCKER: NEW SPECIES OF CUSCUTA 109 
It might be confused with Cuscuta floribunda H. B. K., from 
which it differs in having shorter corolla lobes and shorter scales; 
with Cuscuta corymbosa: grandiflora Engelm., from which it 
differs in the corolla not bulging between the filament attach- 
ments and with broader scales; and with Cuscuta linctoria 
wartius, from which it differs in its larger flowers and pro- 
portionately shorter corolla lobes and shorter scales. 
€ specimen examined was from Cozumel Island, Yucatan, 
Mexico (Gaumer go), the type, in the Gray Herbarium. 
Cuscuta durangana sp. nov. 
Stems slender. Flowers membranous, about 2 mm. long, on 
pedicels mostly as long as, or longer than, the flowers, in cymos 
ager calyx about as long as the corolla or sarcey reaching 
the s; lobes ovate, obtuse or, rarely, acutish, not over- 
ania corolla campanulate; lobes ovate, obtuse, spreading, 
later becoming reflexed, about as long as the tube; stamens short- 
er than the lobes, the large, 
oval, versatile anthers about 
equal to the stoutish filaments; 
scales about reaching the sta- 
bridged low; styles slender and 
longer than the globose ovary. 
Capsule papas globose, 
circumscissile, carry ing the 
withered corolla about it; ap- 
parently mostly two-seeded ; 
seeds ovate, slightly rostrate, 
about 1.5 mm. long, hilum 
oblong, oblique. 
This species falsl in section EUGRAMMICA, subsection OBTUSI- 
LOBAE, near Cuscuta applanata Engelm. It differs from this 
species, however, in having longer pedicels and a looser inflores- 
cence and in not exhibiting keels on the calyx. It superficially 
resembles Cuscuta umbellata H. B. K. The obtuse corolla and 
calyx lobes easily distinguish this species, however. 
The only specimen examined was from Durango, Mexico 
(Endlich 268), the type, in the herbaruim of the Botanical 
Institute at Dahlem (a small bit in the writer’s herbarium). . 
DEPauw UNIVERSITY 
Fic. 3. CuscuTA DURANGANA Yuncker 
A. Flower, X 5 __B. Opened corolla, 
x C. Opened calyx, X 5. D. Cap- 
sule, X 5. E. Individual scale, X 10. 
