108 COLLECTED DESCRIPTIONS OF CUSCUTA. 
From WATson’s CoNnTRIBUTIONS TO AMERICAN Botany, XI. (Proc. Amer. ACAD, Arts AND Sct., Vou. XVIII. Ava. 1883.) 
C. Porostna, Schaffner mss.: stems capillary; the flowers minute (scarcely a line long), ae [124] 
in small, rather loose clusters ; calyx-lobes triangular, acute, scarcely equalling the deeply campanulate co 
tube, which is rather longer than its erect, ovate, acute, somewhat inflexed and at last connivent lobes ; stamens short, 
the subglobose anthers senity as long as the filaments ; scales broad, deeply fringed, slightly — the tube; capil- 
lary styles nearly as long as the depressed ovary ; pee covered by the marcescent corolla, extremely thin, easily 
tearing off from its base, but not circumscissile, 1-seeded.— One of the smallest-flowered io closely allied to 
C. arvensis, from which the very fragile, 1-seeded capsule paren: by the hood-like corolla, principally distinguishes 
it. — Near San Luis Potosi (779 Schaffner); growing on some labiate, probably a Scutellaria. 
C. MITR#FoRMIS, 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 linear-oblong 
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. 
