SCIENTIFIC AND POPULAR. 143 



726. ECHINOCACTUS, Link & Otto. Echinocactus. Cactaceae. 

 From Greek, "hedgehog Cactus". About 200 species, warm 

 drj regions of Xew World; 25 in U. S. 



726. ECHINOCEREUS, Engelm. Echinocereus. Cactaceae. 

 From Greek, "hedgehog Cereus''. About 45 species, warm 



and dry regions of New World; 29 in U. S. 



727. ECHIN6dORUS, Eich. Bur-head. Alismaceae. 



Syn. Sagittaria, Alisma, in part. Aquatic or marsh herbs. 

 About 15 species, mostly American; 3 in U. S. 



728. ECHIN6pANAX, Dec. & PI. Devil's-club. Araliaeeae. 



From Greek, "hedgehog Panax". Syn. Fatsia, in part. 

 A prickly shrub. One species, northwestern U. S. 



729. ECHINOPEPON, Xaud. Echinopepon. Cuciirbitaceae. 



From Greek, "hedgehog Melon". Syn. Echinocystis, in 

 part. Herbaceous vines, warmer regions N. America; 2 in 

 U. S. 



730. ECHITES, P. Br. Savannah-flower, etc. Apocynaceae. 



Syn. Prestonia, in part. Shrubby climbers, many ornamen- 

 tal. About 100 species, tropical America; 4 in U. S. 



a. E. acuminata R. & Pa v. S. America. Cundurango de platano. 



Bark alterative. 



b. E. hirsuta R. & Pa v. [Prestonia hirsuta Muell (Kew)]. 



South America. Cundurango de paloma. Bark alterative. 



731. ECHIUM, L. Viper's Bugloss, etc. Boraarinaceae. 



From Greek, "viper". Hairy herbs with rather showy blue 

 flowers. About 30 species. Old World. 



a. E. viilgare L. Europe and Asia, nat. in U. S. Viper's Buglos?, 

 Blue-weed, Blue Thistle, Blue-devils, Blue-stem, Blue Cat's- 

 tail, Viper' s-grass, Vipers-herb, Snake-flower, Adderswort; 

 Ger. Xatterkopf ; Fr. Viperine. Plant diuretic, expectorant. 



732. ECLIFTA, L. - Eclipta. - Compositae. 



From Greek, "wanting" (a pappus). Syn. Verbesina, in 

 part. Inconspicuous herbs with small heads of whitish flowers. 

 About 5 species, tropical; 1 nat. in U. S. 



733. EDWINIA, Heller. Edwinia. Saxifragaceae. 



Syn. Jamesia, T. & Gr. Low shrub. One species in south- 

 central U. S. 



734. EHRETIA, L. - Ehretia. - Boragiiiaceae. 



Named for G. D. Ehret, botanical painter, 18th Century. 

 Trees or shrubs. About 50 species, mostly tropical; 1 in U. S. 



735. ELAEAGKUS, L. Silver-berry. Elaeagrnaceae. 



From Greek, "sacred olive" . Shrubs or trees. About 20 

 species, Europe, Asia, Australia and N. America; 1 in U. S. 



a. E. argeiitea Pursh. British America, south to Minnesota and 

 Utah. Silver-berry. Fruit edible, (b) E. liortensis Bibers., 

 Southern Europe to China, Trebizonde Date, and (c) E. 

 iinibelliitus Thunb., Japan, yield also edible fruit. 



