SCIENTIFIC AND POPULAR. 153 



L E. viminalis Labill. Southeast Australia. Manna Gum-tree. 

 Exudate Australian Manna, which is also obtained occasionally 

 from (j) E. groniocalyx F. Muell., and (k) E. Giinni J. Hook- 

 er, Cider tree. 



Other Eucalypts worthy of note are (1) E. corniita Labill., 

 Yate tree; (m) E. diversicolor F. Muell., Karri tree; (n) E. 

 gomphiocephala DC, Tooart tree; (o) E. longifolia Link., 

 ■ Woolly-butt tree; (p) E. marg:iiiataSm., Jarrah, Australian 

 cr Bastard Mahogany ( timber resists teredo ) ; (q ) E. niicrocorys 

 F. Muell., Tallow-wood tree, Stringy-bark tree; (r) E, obliqua 

 L'Her., Messmate tree (the Common Stringy-bark tree of Tas- 

 mania); (s) E. odorata Behr , Peppermint tree (of south Aus- 

 tralia); (t) E. oleosa F. Muell., Mallee tree (very rich in vola- 

 tile oil); (u) E. pilularis Sm., Black-butt tree, Mountain 

 Ash; (v) E, polyanthema Schauer, Red Box tree, Australian 

 Lignum Vitae; (w) E. popiilifolia Hook., Bembil, Shining- 

 leaved Box Eucalyptus; (x) E. punctata DC, Leather-jacket, 

 Hickory Eucalyptus; (y) E, resinifera Sm., Red or Forest 

 Mahogany (erroneously named as source of Australian Kino); 

 (z) E, robiista Sm., Swamp or White Maliogany; (aa) E. 

 saliibris F. Muell., Gimlet- wood. Fluted Gum-tree; (bb) E. 

 Sieberiana F. Muell., (E. virgata, Sieber), 'Mountain Ash, in 

 Tasmania called Gum-top or Iron-bark tree; (cc) E. Stnarti- 

 aiia F. Muell., Apple-scented Gum-tree; (dd) E. termiiialis F. 

 Muell., Blood wood tree (of northern Australia). [Honey pro- 

 duced from the flowers of Eucalyptus possesses active medicinal 

 properties, antipyretic, antiseptic, etc. ] 



791. EUCEPHALUS, Nutt. Aster. Compositae. 



From Greek, with "fine (flower) heads". Syn. Aster, in 

 part. Herbs resembling Aster. About 10 species, all of U. S. 



792. EUCHARiDIUM,Fisch. &Mey. Eucharidium.Onagraceae. 

 Annual herbs with red flowers. Two species, California. 



793. EUCHEUMA, Agardh. Agar-Agar. Gelidiaceae. 



Sea weeds allied to Gelidium q. v. About 18 species, warm- 

 er seas. 



a. E. gelatinai Agardh, (b) E. spinosum Agardh. Indian Ocean. 

 Macassar or Celebes Agar-agar, Jelly plant. The source (in 

 part ) of Japanese or Chinese gelatin or isinglass. Used as a 

 culture medium by bacteriologists. See Gelidium and Sphaero- 

 coccus. 



794:. EUCXIDE, Zucc. - Eucnide. - Loasaceae. 



From Greek, ''nettle sure". Syn. Mentzelia, in part. 

 Herbs. Three known species, all of southwestern U. S. 



795. EUCRYPTA, Gray. Eucrypta. Hydrophyllaceae. 



From Greek, "well concealed". Syn. Ellisia, in part. 

 Herbs. Three species, southwestern U. S. 



796. EUGENIA, Micheli. Clove-tree, etc. Myrtaceae. 

 Named for Prince Eugene of Savoy, d. 1736. Syn. Caryo- 



phyllus, Calyptranthes, Syzygium, ]Viyrtus, in part. Trees and 

 shrubs. More than 500 species, tropical regions. Old and Xew 

 World; 7 in U. S. See Jambos. 



