252 ERITHALIS 



Erithalis P. Br. Rubiaceae (n. 3). 6 Florida, W. Indies. 



EritricMum Schrad. (BH. inch Cryptantha Lehm.). Boraginaceae 

 (iv. 2). 50 temp. 



Erlangea Sch.-Bip. Compositae (i). 12 trop. Afr. 



Ernestia DC. Melastomaceae (i). 3 trop. S. Am. 



Ernestimeyera O. Ktze. = Alberta E. Mey (Rubiac.). 



Ernodea Sw. Rubiaceae (n. 10). 3 W.I., S.E. U.S. 



Erocallis Rydberg (Claytonia p.p.). Portulacaceae. i Rockies. 



Eroded, erose, slightly, irreg. toothed, as though gnawed. 



Erodendrum Salisb. = Protea L. (Proteac.). 



Erodiophyllum F. Muell. Compositae (3). 2 Austr. 



Erodium L'Herit. Geraniaceae. 50 temp. (2 Brit. Stork's-bill). 

 Like Geranium. The awn twists into a corkscrew with free end and 

 is very hygroscopic (used for weather indicators, &c.). The mericarp 

 has a sharp point with backward-pointing hairs. When it falls, the 

 free end of the awn often catches against surrounding objects. If 

 dampness supervene, the awn untwists and lengthens, and the fr. is 

 driven into the soil. When dry the awn curls up, and the process 

 may be repeated (cf. Stipa). 



EropMla DC. (Draba p.p. EP.). Cruciferae (4). 4 Eur., Medit., t Brit. 



Erosion Lunell (Rragrostis p.p.). Gramineae (10). 2 W. N.Am. 



Erpetion DC. = Viola Tourn. (Viol.). 



Erubescens (Lat.), blush-red. 



Eruca Tourn. ex Adans. Cruciferae (2). 10 Medit. Oil is obtained 

 from the seed of E. sativa Mill. 



Erucago Tourn. ex Adans. =Bunias L. p.p. (Crucif.). 



Erucaria Cerv. (Bouteloua EP.). Gramineae (11). 7 Mexico. 



Erucaria Gaertn. Cruciferae (2). 6 Medit. 



Erucastrum Presl (Brassica p.p. BH.}. Crucif. (2). 15 Medit., Eur. 



Erucastrum Schimp. et Spann. Cruciferae (2). 15 Medit., Mid-Eur. 



Ervatamia Stapf. (Tabernaemontana p.p.). Apocyn. (i. 3). 30 palaeo- 

 trop. 



Ervilia Link = Vicia Tourn. p.p. (Legum.). 



Ervum Tourn. ex L. =Vicia Tourn. p.p. For E. Lens L. see Lens. 



Erycibe Ruxb. Convolvulaceae (i). 1 1 Indomal. 



Erycina Lindl. Orchidaceae (n. 19). i Mexico. 



Eryngiophyllum Greenman. Compositae (5). i Mexico. 



Erynglum (Tourn.) L. Umbelliferae (n. i). 220 trop. and temp, 

 (exc. S. Afr.). 2 Brit, (eryngo or sea-holly) on coast, prickly herbs 

 with thick r. and fleshy 1. coated with wax. Fls. in cymose heads, 

 blue, visited by bees. Fibre (Caraguata fibre) is obtained from the 1. 

 of E. pandanifolinni Cham, et Schlecht. 



Eryngo, Eryngium. 



Erysimum (Tourn.) L. Cruciferae. 80 Medit., Eur., As. (E. cheir- 

 (i)ithoides L., treacle mustard, in Brit.) 



Erythaea S. Wats. Palmaceae (i. 2). 2 S. California. 



Erythraea Renealm ex Borck. Gentianaceae (i. 2). 30 temp. E. 

 Centanrium Pers. (centaury), Brit. 



Erythrina L. Leguminosae (in. 10). 35 trop. and subtrop. E.crista- 

 ga/li L. cult. Its bright red fls. are inverted; the wings are nearly 

 aborted; the keel forms at its base a honey sac. E. indica Lam. 



