42 ILLINOIS BIOLOGICAL MONOGRAPHS [132 



knobs about the intrastylar aperture, circumscissile, surrounded by the 

 withered corolla; seeds about 1 mm. long, angled, oblique, oval, yellowish; 

 hilum oblong, linear, transverse. 



Cuscuta umhellata typica 

 [Figures 9 a-e, 115 and 149] 



Flowers usually not more than 3 mm. long; corolla lobes lanceolate, 

 reflexed; scales ovate, as long as or longer than the tube. 



Type locality: Between Queretaro and Salamanca, Mexico. Range: 

 The southern United States, Mexico and the Greater Antilles. 



Specimens examined: United States: Foot of Rocky Mountains (James, on Long's 

 exped.): New Mexico; (Stanley 7849, Wright 371, 1627, 1636, 1639, this number in Herb. 

 Boissier=C. leptantha typica, Bigelow in 1851, Gregg, Mulford 1078a), Las Cruces (Wooton 

 in 1895), Dona Ana Co. (Wooton in 1895 and in 1904, W^ooton & Standley 3986), Socorro 

 (Plank in 1895), Gila Valley (Green 12953), Gila (Schott), Gila River (Green in 1880). 

 Arizona; Ft. Verde (Mearns in 1887, somewhat fleshy and puberulent), Santa Rita Grass 

 Preserve (Goodding 2482), Beaver Creek (Purpus 8274), Prescott (Femon 1896), San Pedro 

 River (Hays). Texas; Laredo (Nealley 100, 100a, Mackenzie 81), southwestern Texas 

 (Palmer 916), western Texas (Wright 510). Colorado; Fremont Co. (Brandegee 407). 

 California (Lemmon). Florida (Garber 1883, Simpson 361, the flowers nearly sessile). 



Mexico: Mexico Boundary Line (Mearns 640). Durango (Pittier 497). Chilhuahua 

 (Palmer 500, Pringle 783). Tamaulipas; Victoria (Palmer 411, 501, 506, 511), Camargo 

 (Gregg). Oaxaca; Cuicatlan (Rusby 129, somewhat fleshy puberulent). Sonora (Wright 695, 

 Coulter 1010). Puebla; Tehuacan (Pringle 6297). Coahuila; Torreon (Palmer 471), Saltillo 

 (Gregg 490), between Queretaro & Salamanca (Humboldt, the t}T)e, a fragment in the Engel- 

 mann Herb.). 



West Intdies: Cuba (Wright 3107). Porlo Rico (Britton & Shafer 1866, Britton, 

 Cowell & Brown 4794), Punta Melones to Punta Casabe (Britton, Cowell & Brown 4676), 

 Cayo Mertos (Britton, Cowell & Brown 4978). Jamaica (Broomfield in 1847, Britton 3102), 

 Kingston (Britton & HoUick 1737). 



Cuscuta umhellata reflexa (Coulter) n. comb. 

 [Figure 114] 

 C. californica reflexa Coulter, Contrib. U. S. Nat. Herb., 1:45, 1890. 



Flowers large (4-6 mm. long), corolla lobes lanceolate, upright to 

 reflexed; scales profusely fringed about the apex, spatulate, their lower 

 half so firmly adherent to the tube as to render it difficult to detach for 

 study. The large size of the flowers and compact clusters distinguish this 

 variety. 



Type locality : Roma, Texas. Range : Texas, Arizona and northern 

 Mexico. 



Specimens examined: United States: Texas; Roma (Nealley 338, the type of 

 C. californica reflexa, in the U. S. Nat. Herb, as type sheet 1,192). Arizona; San Carlos 

 (Ebert in 1893), Tucson (Griffiths 2044, Thornber 8959, Engehnann in 1880). 



Mexico: Lower California; Cape region (Brandegee in 1902), west coast (Brandegee in 

 1893), Carduana (Brandegee in 1893). Sinaloa; Culiacan (Brandegee in 1904). Sonora; 

 Pinacate Mts. (McDougal 26), Guaymas (Palmer 173). 



