DODDER FAMILY. 683 



DICHONDRA Forst. Char. Gen. PI. 39, t. 40. 1776. 



Five species, warmer regions of the globe. 



Dichondra evolvulacea (L. f.) Britton, Mem. Torr. Club 5 : 268. 1894. 



CAROLINA DICHONDRA. 



Sibthorpia erolvulaoea L. f. Snppl. 288. 1781. 



Dichondra repens Forst. Fl. Ins. Anst. Prodr. 2. 1786. Name only. 



D. carolinensis Michx. Fl. Bor. Am. 1 : 136. 1803. 



Ell. Sk. 1:338. Gray, Man. ed. 6, 368. Chap. Fl. 346. Gray, Syn. Fl. N. A. 2, pt. 

 1 : 208. Coulter, Contr. Nat. Herb. 2 : 289. 



WEST INDIES TO PATAGONIA. Cosmopolitan in warmer zones of the globe. 



Carolinian and Louisiauiau areas. Southern Virginia along the coast to Florida, 

 west to Texas and Arkansas. 



ALABAMA: Lower Pine belt. Coast plain. Damp, grassy banks. Mobile and Bald- 

 win counties. Flowers greenish; March, April. Abundant; perennial. 



Type locality: "Hab. in Nova Granada. D. Mutis." 



Herb. Geol. Surv. Herb. Mohr. 



CUSCUTACEAE. Dodder Family. 



CUSCUTA L. Sp. PI. 1 : 124. 1753. 



About 100 species, annuals, leafless winding parasitic plants, of warmer and tem- 

 perate zones, both hemispheres. North America, 21. 



Cuscuta arvensis Beyrich ; Hook. Fl. Bor. Am. 2 : 77. As synonym. 1834. 



FIELD DODDER. 



Gray, Man. ed. 6, 371. Chap. Fl. 347. Gray, Syn. Fl. N. A. 2, pt. 1:220. Coul- 

 ter, Contr. Nat. Herb. 2 : 294. 



Alleghenian, Carolinian, and Louisianian areas. Nova Scotia, Ontario, Manitoba, 

 New York west to Minnesota, Rocky Mountains to Oregon ; south to Florida, west 

 to Texas and California. 



ALABAMA: Mountain region. Coast plain. Dry gravelly or sandy exposed places. 

 Cullman County. Lee County, Auburn (F. S. Earle). Mobile County. Flowers, 

 June to August; on small herbs. Stem slender, filiform. Forms with larger flowers, 

 calyx papillose to verrucose, occur near the seashore on Solidago pauciflosculosa and 

 Myricas ; not rare. 



Type locality : " N. W. America. Douglas. " 



Herb. Geol. Surv. Herb. Mohr. 



Cuscuta indecora Chois. Mem. Soc. Gen. 9 : 278, t. 3, f. 5. 1841. SEASIDE DODDER. 



C. neuropetala Engelm. Am. Journ. Sci. 45:75. 1843. 



Cuscuta pulcherrima Scheele, Linnaea, 21:750. 1848. 



C. decora Engelm. Trans. St. Louis Acad. 1 : 501. 1859. 



Gray, Man. ed. 6, 371. Chap. Fl. 347. Gray, Syn. Fl. N. A. 2, pt. 1 : 221. Coulter, 

 Contr. Nat. Herb. 2 : 294. Griseb. Fl. Brit. W. Ind. 476. 



WEST INDIES TO ARGKNTINA. 



Carolinian and Louisianian areas. Southern Illinois to Florida, westward to Texas, 

 Arizona, and California. 



ALABAMA : Coast plain. Littoral region. Dry sandy places near the seashore and 

 damp sandy borders of brackish swamps. Mobile and Baldwin counties. Petals 

 white, anthers purple. August. On coarse herbs and small shrubs, such as Solidago 

 and Myrica; frequent. 



Varies infinitely in the size of flowers, smoothness of calyx, and looseness or com- 

 pactness of inflorescence, the intergrading forms blending almost imperceptibly^ 

 with the varietal forms which have been described. Forms with largo flowers in 

 looser cymes, the calyx and corolla less papillose, distinguished as C. pidcherrima 

 and C. neuropetala, occur in damp situations ; in the dry sands the flowers are smaller, 

 strongly verrucose papillose, the lobes of the corolla with a strongly inflexed point, 

 and the flowers in dense clusters, such forms responding to C. indecora Engelm. 



Type locality (fide Engelmann) : On the Rio Grande. (Berlandier.) 



Herb. Geol. Surv. Herb. Mohr. 



Cuscuta obtusiflora glandulosa Engelm. Trans. Acad. St. Louis 1 : 492. 1859. 

 Chap. Fl. ed. 3, 332. Coulter, Contr. Nat. Herb. 2 : 294. 

 WEST INDIES (BAHAMAS). 

 Louisianian area. North Carolina to Florida, west to Texas and New Mexico. 



