Cuscuta umbellata, HBK. At Laredo on the Rio Grande 
(916). 
Cuscuta squamata, Engelm. At San Lorenzo de Laguna, Coa- 
huila (917, 2098). 
Cuscuta arvensis, Beyr. At Parras, Coahuila (919). Also var. 
verrucosa, Engelm., at San Luis Potosi (780 Schaffher). 
Cuscuta Potosina, Schaffner Ms. Stems capillary: the flowers 
minute (scarcely a line long) , short-pedicelled in small rather loose 
clusters : calyx-lobes triangular, acute, scarcely equalling the deeply 
campanulate corolla-tube, which is rather longer than its erect ovate 
acute somewhat indexed and at last connivent lobes : stamens short, 
the subglobose anthers nearly as long as the filaments ; scales broad, 
deeply fringed, slightly exceeding the tube : capillary styles nearly as 
long as the depressed ovary : capsule covered by the marcescent 
corolla, extremely thin, easily tearing off from its base but not cir- 
cumscissile, 1-seeded. — One of the smallest-flowered species, closely 
allied to C. arvensis, from which the very fragile 1-seeded capsule, 
covered by the hood-like corolla, principally distinguishes it. (Dr. G. 
Engelmann .) — Near San Luis Potosi (779 Schaffner); growing on 
some labiate, probably a Scutellaria .* 
Cuscuta decora, Chois. At Bluffton, Texas (2097). 
* 
* 
* Dr. Engelmann furnishes the following description of another new species, 
which was distributed in the previous Parry & Palmer collection : — 
C. mitrjeformis, Engelm. Stems thick: flowers short-pedicelled, crowded 
in large glomerules : calyx-lobes orbicular, unequal, the outer carinate, fully as 
long as the short-campanulate corolla-tube; lobes of the corolla as, long as the 
tube, broadly oval, rounded, at last spreading or reflexed ; subulate filaments 
as long as the lmear-obiong anthers ; scales very broad, deeply fringed, exsert, 
incurved: ovary with very short subulate styles : capsule large, exsert, 2-horned 
with the broad spreading conical styles, regularly circumscissile. — Between 
San Luis Potosi and Tampico, in May ; Dr. E. Palmer. Flowers 3 lines and 
capsule 4 lines long; clusters in fruit 10 to 12 lines thick. Nearly allied to C. 
Xalapensis , but distinguished by its much larger flowers and fruit, and by its 
short thick almost conical styles. 
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