24 ILLINOIS BIOLOGICAL MONOGRAPHS [114 



the corolla tube; corolla tube campanulate, becoming urceolate as the 

 fruit develops; lobes upright to spreading, triangular, obtuse, overlapping; 

 scales small, thin and difficult to make out, shorter than the tube, bifid 

 and with few processes which are most prominent towards the apex, 

 bridged at about a third of their height; stamens shorter than the lobes; 

 filaments somewhat subulate, about equal to the oval or roundish, slightly 

 versatile anthers; styles shorter than the globose, slightly pointed ovary; 

 stigmas filiform, as long as or shorter than the styles, styles and stigmas 

 together shorter than the ovary. Capsule globose-conic, capped by the 

 withered corolla, circumscissile; seeds about 1.5 mm. long, usually four 

 in a capsule, oval, compressed, slightly angled; hilum oblong, transverse. 

 Type location: The prototype of Bauhin probably from Switzerland. 

 Casual in North America. 



Specimens examined : United States : Maine; Gilead (Furbish in 1397). California; 

 near Clear Lake (Bolander 2673, in part). 

 West Indies: Haiti (Poiteau). 



Cuscuta epilinum Weihe 

 [Figures 3, 59 and 133] 



C. epilinum Weihe, Archiv des Apothekervereins im Nordlichen Deutschland, 8:50-51,1824. — 

 Choisyin DC, Prodromus, 9:452, 1845. — Engelmann, Trans. Acad. Sci. St. Louis, 

 1:470, 1859.— Matthew, Bull. Torr. Bot. Club, 20, pi. 164, fig. 1, 1893.— Britton & 

 Brown, Illustr. Flora, 3:28, fig. 2957, 1898; 2 ed., 3:48, fig. 3442, 1913. 

 No American synonymy. For foreign synonymy see Engelmann, Trans. Acad. Sci. 

 St. Louis, 1:470, 1859. 



Stems slender to medium. Flowers about 3 mm. long, glabrous, 

 sessile, in scattered compact glomerules; calyx as long as the corolla and 

 somewhat loose about it; lobes broadly ovate, acute; corolla urceolate, 

 early conforming to the shape of the capsule; lobes ovate-triangular, 

 obtuse, shorter than the tube; scales shorter than the tube, spatulate- 

 truncated, crenulate about the upper portion, thin, bridged somewhat 

 below the middle; stamens shorter than the lobes; anthers ovate, sub- 

 cordate, about as long as the somewhat subulate filaments; ovary depressed- 

 globose; styles short, about equal to the linear, slightly tapering stigmas; 

 the style and stigma together much shorter than the ovary. Capsule 

 depressed globose, somewhat angled about the developing seeds, circum- 

 scissile, leaving the obcordate dissepiment in the calyx, carrying the with- 

 ered corolla at the apex; seeds frequently occurring in pairs, about 1.2 mm. 

 long, round or ovate to oval, angular, somewhat scurfy; hilum linear, 

 oblong, transverse or oblique. 



Type locality: Probably near Minden, in Western Germany. Range 



in North America: Eastern and central United States and in Canada, 



always, in the specimens examined, on Linum. 



Specimens examined: A fragment of the type in the Engelmann herb. United States: 

 Delaware; Wilmington (Canby), Centreville (Tatnall in 1863, Commons in 1863), New Castle 



