254 ESMERALDIA 



Esmeraldia Fourn. Asclepiadaceae (n. i\]. i Venezuela. 

 Espadaea A. Rich. Solanaceae (4). (Verhen. BH.} i Cuba. 

 Esparto, ^tipa tenacissima L., Ampelodesma, Lygtum. 

 Espeletia Mutis. Compositae (5). n Andes. Char. pi. of the alpine 



region (Paramo). Aloe-like xero. with dense hairs. 

 Espinal (formation), spiny woodland (S. Am.). 

 Esquirolia Leveille. Oleaceae(P). i China. 

 Essence of violets, Iris florentina L. 

 Essential oils, cf. oils; -organs of fl., sta. and cpls. 

 Esterhazya Mikan. Scrophulariaceae (in. 2). 3 Brazil. 

 Estival, pertaining to summer. 

 Esula Rupp. = Euphorbia L. p.p. (Euph.). 



Etaballia Benth. (Inocarpus BH.}. Leguminosae (in. 8). i Guiana. 

 Etaerio, aggregate (of fruit). 



Eteriscius Desv. Rubiaceae (inc. sed.). i Guiana. 

 Ethulia L Compositae (i). 2 palaeotrop. 

 Etiolation, yellowing and attenuation for want of light. 

 Etiology, the study of causes. 

 Ettow (W.I.), Cordia Sebestana L. 



Eu- (Gr. pref.), true, typical; -cyclic, whorled with same number of 

 organs in every whorl; -geogenous, weathering readily; -tropous 

 (insects), long-tongued bees and hawk-moths. 

 Euadenia Oliv. Capparidaceae (n). 2 trop. Afr. 

 Eubrachion Hook. f. Loranthaceae (n). 2 S. Am. 

 Eucalyptus L'Herit. Myrtaceae. 230 Austr., 2 or 3 Indomal. (blue-gum, 

 iron-bark, stringy-bark, blood-wood, mallee, &c.). One of the most 

 characteristic genera of the Austr. flora, easily known by the oper- 

 culuin of the fl. bud. Trees and shrubby trees. Some sp. reach an 

 enormous size; E. regnans F. Muell. is officially recorded as reaching 

 326 ft. in height and 25 ft. 7 in. in girth at 6 ft., on Mt. Baw Baw near 

 Melbourne (cf. Sequoia). The 1. at first formed are often opp. and 

 dorsiv., the later ones alt. and isobil., more suited to the climate. 

 The barks vary much, but being easily recognized, are a valuable 

 aid in the classification. The most common is smooth bark (gum 

 trees) which exfoliates in patches; other kinds are bark scaly 

 all over the trunk (blood-woods, &c.) ; bark thick and fibrous, the 

 fibres set longitudinally (stringy-barks), or I el ted ; bark hard and 

 furrowed, often black with age (iron-barks). Infl. usu. an umbel 

 which by lengthening of the axis passes to a panicle or corymb. The 

 floral recept. is hollow and becomes woody in the fr. The K is 

 thrown off as a lid when the fl. opens. 



On account of their rapid growth and economic value, these trees 

 are now largely cult, in Algeria, &c. Many sp. yield valuable timber, 

 e.g. E. rostiata Schlecht., E. marinata Sm. (jarrah), E. diversi- 

 folia F. Muell. (karri), &c ; E. Globitlus Labill. (blue-gum) and 

 others yield oil of eucalyptus; others yield oils, kino, &c. 

 Bucephalus Nutt. (Aster p.p.). Compositae (3). 10 N. Am. 

 Euceraea Mart. Flacourtiaceae (7). i Amazon valley. 

 Euchaetis Bartl. et Wendl. Rutaceae (i). ,5 S. Afr. 

 Eucharidium Fisch. et Mey. Onagraceae (2). 3 California. 

 Eucharis I'lanch. et Linden. Amaryllidaceae (i). 6 trop. S. Am. 



