392 CUSCUTACEAE 



disseminated with alfalfa seed. In the Pacific States it has been found growing on alfalfa in Humboldt, So- 

 lano, Santa Clara, Santa Cruz, and Tulare Counties, California. Aug.-Oct. 



6. Cuscuta Jepsonii Yuncker, Jepson's Dodder. Fig. 3876. 



Cuscuta Jepsonii Yuncker, Univ. 111. Biol. Monogr. 6: 149. fig. 52. 1921. 



Stems slender, pale. Flowers cymosely clustered, the entire inflorescence fleshy and papil- 

 late ; pedicels shorter than the corolla ; calyx-lobes triangular, acute, barely 1 mm. long ; co- 

 rolla 2-2.5 mm. long, broadly urceolate, at least in age; lobes erect, becoming connivent, tri- 

 angular barely half the length of the tube ; stamens much shorter than the corolla-lobes ; scales 

 represented by ridges ; styles much shorter than the ovary. Capsule depressed-globose, sur- 

 rounded by the persistent corolla ; seeds 2-4, rounded, compressed. 



Parasitic on herbs and shrubs, Arid Transition Zone; North Coast Ranges, Lake County, California. Type 

 locality: Big Horse Mountain, northern Lake County, California. The type collections were growing on 

 Ceanothus diversifolius Kell. July-Sept. 



7. Cuscuta brachycalyx Yuncker. San Joaquin Dodder. Fig. 3877. 



Cuscuta calif ornica var. brachycalyx Yuncker. Univ. 111. Biol. Monogr. 6: 152. figs. 45e-f, 75. 1921. 

 Ctisctita brachycalyx Yuncker, Mem. Torrey Club 18: 159. 1932. 



Stems medium slender, pale yellow. Flowers in loose clusters, pedicelled, about 4 mm. long, 

 becoming thin and transparent ; calyx turbinate, much shorter than the corolla, lobes short, 

 broadly ovate, acutish or obtuse ; corolla campanulate, the lobes reflexed, oblong, abruptly acute 

 or obtuse, about equaling the tube ; scale none ; stamens shorter than the lobes ; anthers linear- 

 ovate, about equaling the subulate filaments ; ovary globose ; styles long, exserted ; stigmas 

 capitate ; capsule globose, surrounded by the withered corolla ; seeds about 2 mm. long, flat- 

 tened on 2 sides. 



Parasitic on various native herbs, especially Eriogonum, Sonoran and Arid Transition Zones; Inner Coast 

 Ranges, western slopes of the Sierra Nevada, and the Sacramento-San Joaquin Valley, California. Type 

 locality: near Hanford, Tulare County, California. June-Sept. 



8. Cuscuta occidentalis Millsp. Western Dodder. Fig. 3878. 



Cuscuta californica var. breviflora Engelm. Trans. St. Louis. Acad. 1 : 499. 1859. 

 Cuscuta occidentalis Millsp. Field Mus. Pub. Bot. 5: 204. 1923. 



Stems medium slender, yellow. Flowers sessile or short-pedicelled, usually in small com- 

 pact clusters, about 3 mm. long, often glandular, 5-merous ; calyx about as long as the corolla- 

 tube, lobes ovate-lanceolate, acuminate ; corolla-tube as broad as long, becoming globular in 

 fruit, lobes lanceolate, acuminate, usually spreading, giving a star-shaped appearance to the 

 flower as seen from above; anthers oval, scarcely 0.5 mm. long, filaments but little longer, 

 subulate ; scales none ; ovary globose, styles about as long as the ovary only slightly exserted, 

 stigmas capitate ; capsule globose, about 2 mm. broad, bursting irregularly. 



Parasitic on various native herbs and shrubs. Upper Sonoran and Transition Zones; northeastern Wash- 

 ington, to central California east to Utah and western Colorado. Type locality: Monterey, California. June-Aug. 



9. Cuscuta californica Choisy. California Dodder. Fig. 3879. 



Cuscuta californica Choisy, Mem. Soc. Geneve 9: 279. 1841. 



Cuscuta acuminata Nutt. ex Engelm. Trans. St. Louis Acad. 1: 498. 1859. 



Cuscuta californica var. gracilifiora Engelm. op. cit. 499. 



Cuscuta californica var. longiloba Engelm. loc. cit. 



Stems medium slender, yellow. Flowers 3-5 mm. long, distinctly pedicelled, in loose cymose- 

 paniculate clusters ; calyx turbinate, fleshy at base, lobes triangular to lanceolate, acute or 

 acuminate ; corolla-tube campanulate-cylindric, equaling or well-exceeding the calyx, lobes nar- 

 rowly lanceolate, sharply acute, reflexed, usually longer than the tube ; scales none ; anthers 

 oblong-linear, about twice as long as broad and about equaling the subulate filaments ; styles 

 slender, well-exserted, much longer than the globose ovary, stigmas capitate ; capsule globose, 

 surrounded by the withered corolla, bursting irregularly. 



Parasitic on various native herbs and shrubs, Sonoran and Transition Zones; eastern Oregon to Nevada, 

 Calfornia and Lower California. Type locality: "Nov. California" Douglas. Douglas is known to have col- 

 lected along the coast and in the Coast Ranges of California from about Sonoma County to Saeta Barbara. 

 May-Aug. 



Cuscuta californica var. papill6sa Yuncker, Univ. 111. Biol. Monogr. 6: 152. fig. 76. 1921. Calyx and pedi- 

 cels more or less densely hispidulous-papillose; otherwise similar to the typical species. Parasitic on various 

 native herbs and shrubs, often forming dense masses, Sonoran Zones; cismontane southern California in San 

 Bernardino and Riverside Counties, California. Type locality: San Bernardino Valley. 



10. Cuscuta indecora var. neurcpetala (Engelm.) A. S. Hitchcock. 



Pretty Dodder. Fig. 3880. 



Cuscuta neuropetala Engelm. Amer. Journ. Sci. 45: 75. 1843. 



Cuscuta pulcherrima Scheele, Linnaea 21: 750. 1848. 



Cuscuta indecora neuropetala A. S. Hitchcock, Contr. U.S. Nat. Herb. 3: 549. 1896. 



Stems comparatively coarse, yellow. Flowers 3-4 mm. long, on pedicels as long or longer, 

 loosely or compactly clustered, fleshy ; calyx shorter than the corolla-tube, lobes triangular-ovate, 

 obtuse or sometimes acutish, glandular ; corolla-lobes erect or somewhat spreading, oblong- 

 lanceolate, obtuse, fleshy and glandular along the upper part of midrib and at apex; stamens 



