467 
33 ENGELMANN—CUSCUTA. [483] © : 
Another form has a thicker, more coriaceous calyx, usually 
larger flowers (14-24 lines long), larger more deeply fim- 
briate scales, often exsert styles, and sometimes two-seeded 
is 
a, C. Americana, Thunb. is C. African 
i 30. C. corympBosa, Ruiz & Pavon, as bdended by the au- 
thors, is a rare form ofia species which under different names 
is common throughout northern South America and Mexi- 
0. ies, as here proposed, is distinguished by the 
cupulate membranaceous calyx, with short and broad very 
obtuse tobe, loosely enclosing the Beton part of the lon 
cylin t f the corolla; lacinie short, mostly very 
obtuse, erect ely spreading; anthe or orbi- 
cular-oval, sessile or on very short filaments; scales mostly 
lon , attached for the greater of their 
th, ged at the sides and apex, ee 
inct ; ovary small 1, globular ar or Som oh ea zg lon: styles 
which generally reach as Hig ee tee Be 
come exsert ripens ; pollen ie ia 
1-seeded, always pat in its largest diameter, pete d 
and covered by the base of the shrivelled corolla; stylar por- 
tion of dissepiment reaching — to the bottom of’ the cap- 
sule; hilum reduced to a point. Very closely allied to the 
last species but readily distinguished by the i 
and the larger elongated nd exsert corolla. 
LORA: flowe en 3-4 —— long; an- 
ch. VI. 3 
founded on athe same spec —New Granada, Humboldt! 
Columbia, Hartweg! 1237 ; ; Motte! 489 ; ; Comitan, Mexico, 
a, 
a 946; —_ ee in Hb. Mus. Paris, under the 
name of 
The “lowing rps do not seem sufficiently distinct from 
