76 ILLINOIS BIOLOGICAL MONOGRAPHS [166 



1:511, 1859.— Matthew, Bull. Torr. Bot. Club, 20, pi. 165, fig. 11, 1893.— Britton & 

 Brown, Illustr. Flora, 3:31, fig. 2966, 1898; 2 eel., 3:52, fig. 3452, 1913. 



Stems coarse. Flowers glabrous, 4—5 mm. long, pentamerous (infre- 

 quently tri- or tetramerous), sessile, in compact clusters about the host 

 or somewhat more loose; sepals distinct, orbicular to oval, cupped, some- 

 times fringed with short, slender, filamentous processes, surrounded by 3-5 

 similar, appressed bracts; cells of the bracts and sepals with heavily 

 thickened walls; corolla tube cylindrical, becoming urceolate in fruit; lobes 

 spreading to reflexed, oblong, obtuse, infrequently fringed with short, 

 filamentous processes, much shorter than the tube; scales shorter than the 

 tube or reaching the filaments, fringed with long processes, bridged at 

 about the middle, small scales frequently appearing on the bridge between 

 the larger ones, or the scales much reduced; stamens shorter than the lobes; 

 anthers oval, about equal to»or longer than the short, thick filaments; ovary 

 globose, conical, thickened at the apex. Capsule globose-conic, slightly 

 pointed, glandular about the apex which carries the withered corolla; 

 seeds about 2.6 mm. long, globose, ovate, angled or flattened on one side, 

 scurfy; hilum oblong, oblique. 



Cuscuta compacta typica 

 [Figures 54 a-e, 106 and 131] 

 ?C. acaulis Rafinesque, Annals of Nature, 1:13, 1820. 

 C. remotiflora Bertoloni, Misc. Bot., 10:29, 1842. — Engelmann, Trans. Acad. Sci. St. Louis, 



1:511, 1859; in synon. 

 C. fruticum Bertoloni, Misc. Bot., 10:29, 1842. — Engelmann, Trans. Acad. Sci. St. Louis, 



1:511, 1859; in synon. 

 Lepidanchc adpressa Engelmann, Amer. Journ. Sci. & Arts, 45:77, 1843. 

 C. compacta adpressa Engelmann, Trans. Acad. Sci. St. Louis, 1:511, 1859. 

 C. coronata Beyrich in Engelmann, Trans. Acad. Sci. St. Louis, 1:511, 1859; in synon. 

 C. imbricata Nuttall in Engelmann, Trans. Acad. Sci. St. Louis, 1:511, 1859; in synon. 

 C. americana of various authors, Engelmann, Trans. Acad. Sci. St. Louis, 1 :511, 1859; in synon. 



Corolla nearly enclosed in the calyx or somewhat exserted; scales well 

 developed. The common form. 



Type locality: "Hab. Amer. septentrionalem." Range: From New 

 Hampshire, Connecticut and Massachusetts southward to Florida and 

 westward through the central and southern states to Arkansas, Oklahoma 

 and Texas. 



Specimens examined: United States : New Hampshire ;Derry (Seaman). Massachu- 

 setts; Marion (Vail in 1888). Connecticut; New Haven (Eaton in 1858). New Jersey; 

 Ocean Co.(Mackenzie 2908, Redfield 5851 and in 1874), West New York (Van Sickle in 1894),' 

 Landisville (Gross 2193), Atsion (Allen in 1879), Merchantsville (Redfield 5845), Pine 

 Barrens (Canby 2). District of Columbia; Takoma Park (Chase 2571), Washington (Holm 

 in 1888, Steele in 1896 and in 1902, Blanchard in 1891). Maryland; Salisbury (Tidestrom 

 7446), Hyattsville (Steele in 1904). Virginia; Franklin (Heller 1166), Carlins (Dewey 37), 

 southeast Va. (Kearney 2365), Alexandria (Shull 204, 367). N. Carolina; Jackson Co. 

 (Ashe), Elizabeth City (Boettcher 293), Buncombe Co. (Gray & Sullivant in 1863), Swain 



