DODDER FAMILY 



395 



cm 





3882 



3883 



3880. Cuscuta indecora 



3881. Cuscuta subinclusa 



3882. Cuscuta Suksdorfii 



3884 



3883. Cuscuta salina 



3884. Cuscuta denticulata 



3885 



3885. Cuscuta Epithymum 



3886. Cuscuta approximata 



15. Cuscuta Epithymum Murr. Thyme Dodder. Fig. 3885. 



Cuscuta Epithymum Murr. in L. Syst. ed. 13. 140. 1774. 

 Cuscuta Trifolii Bab. Phytologia 1 : 467. 1843. 



Stems filiform, reddish, twining over herbs or low woody plants. Flowers sessile in small 

 dense and rather distinct globose heads, 4-5-merous ; calyx-lobes triangular-lanceolate, acute, 

 0.5 mm. long; corolla pinkish, the tube cylindric or campanulate, exceeding the triangular, 

 spreading lobes ; stamens shorter than the lobes ; anthers oval, shorter than the filaments ; scales 

 somewhat spatulate, fringed on the margin especially on the upper portion ; styles mcluding the 

 linear stigmas slightly longer than the ovary ; capsule globose, capped by the withered corolla, 

 circumscissile ; seeds usually 4, rather rough, compressed. 



Parasitic on various plants but chiefly on legumes, such as clover and alfalfa; native of the Old World, 

 but now widespread in North America including the Pacific States. July-Oct. 



16 Cuscuta approximata var. urceolata (Kunze) Yuncker. Small-seeded 



Alfalfa Dodder. Fig. 3886. 



Cuscuta urceolata Kunze, Flora 4: 651. 1846. 



Cuscuta cupulata Engelm. Bot. Zeit. 4: 276. 1846. 



Cuscuta planiflora var. approximata Engelm. Trans. St. Louis Acad. 1:465. 1859. As to description, but 



not as to synonymic type. 

 Cuscuta gracilis Rydb. Bull. Torrey Club 28: 501. 1901. 

 Cuscuta Anthemi A. Nels. Bot. Gaz. 37: 277. 1904. 

 Cuscuta approximata var. urceolata Yuncker, Mem. Torrey Club 18: 297. 1932. 



Flowers in compact globular clusters, sessile, white, 2.S-3 mm. long; calyx-lobes triangular- 

 ovate, well-imbricated, equaling the corolla-tube, thin and reticulate except a fleshy keel ex- 



