OLA 



287 OLE 



and fruits: Oidium Tuckeri, tukf- 

 8r-i (after Tucker), the oidium of 

 Tucker ; the vine mildew, a 

 fungus which has caused much 

 destruction among grapes both 

 in vineyards and hothouses : 

 0. albicans, dlb'-lk-dnz (L. albic- 

 ans, making white), the Fungi 

 found in the patches known as 

 aphthae, muguet, or thrush, in 

 the mouths of children, and 

 similar growths on the lips and 

 tongues of adults in certain fevers, 

 the Fungi consisting of cylindric- 

 al, ramified, highly refracting 

 threads, composed of long con- 

 catenated cells. 



Dlacacese, n. plu., Sl'dk-d'se-e (L. 

 olax, having a smell, gen. oldcis), 

 the Olax family, an Order of 

 plants : Olax, n., ol'dks, a genus 

 of ornamental climbing plants: 

 Olax zeylanica, zi-ldn'ik-d (new 

 L. zeyldmca, of or from Ceylon), 

 a species whose wood is fetid 

 with a saline taste ; employed in 

 putrid fevers, and the leaves are 

 used as a salad. 



)ldenlandia, n., dld'.$n-land'.i-d 

 (after Oldenland, a Danish bot- 

 anist), a genus of interesting 

 under shrubs, Ord. Rubiacese : 

 Oldenlandia umbellata,. tim'bel- 

 Idt'-a (L. umbella, a little shadow 

 from umbra, a shadow), a 

 species employed in the E. Indies 

 as a substitute for madder. 



Dldfieldia, n., 6ld-feld f 4-d (after 

 R. A. Oldjield), a genus of trees, 

 Ord. Euphorbiacese : Oldfieldia 

 Africana, &f.rlk-&n'-d (L. Afrfc- 

 dnus, of or from Africa), the 

 African oak, or African teak, a 

 hard and ponderous wood, very 

 durable where there is a free 

 current of air. 



Oleacese, n. plu., dl'-Z-af-s&e (L. 

 oledcZus, like the olive tree 

 from L. oled, Gr. elaia, an olive, 

 an olive tree), the Olive family, 

 an Order of plants which are 

 bitter, tonic, and astringent, and 

 some yield a fixed oil : Olea, n. , 



, a very important genus of 

 plants, chiefly on account of the 

 oil, etc., obtained from some of 

 them : Olea Europsea, ur'-op-e'-d 

 (of or from Europe), the olive 

 tree of the 0. Testament, growing 

 naturally on the shores of the 

 Mediterranean; its pericarp yields 

 by expression olive oil, consisting 

 of two oleaginous principles, 

 Margarin and Elain ; olive oil 

 has nutrient, emollient, and lax- 

 ative properties, and is used in 

 forming ointments, liniments, 

 and plasters ; the bark has been 

 used as a tonic, as also a resinous 

 exudation from it, called ' oliv- 

 ile,' or olive gum ; Spanish or 

 Castile soap is a combination of 

 the oil with soda, and soft soap 

 of oil with potash : 0. fragrans, 



frdg f -rdnz (L. fragrans, emitting 

 a smell), a species whose flowers 

 are used by the Chinese, under 

 the name Kwei-hwa, to perfume 

 teas : 0. rotundifolia, rd-tund'-l- 



fotti'd (L. rotundus, round ; fol- 

 ium, a leaf), and 0. Europaea, 

 yield a sweet exudation called 

 manna not, however, the manna 

 of the Bible nor the manna of 

 commerce, which is the produce 

 of the Manna or flowering Ash. 



oleaginous, a., dl^'ddf-m-us (L. 

 oleaginus, of or pert, to an olive 

 tree from olea, an olive tree), 

 oily ; unctuous ; in bot., fleshy 

 and oily. 



oleaster, ii.,6l'8-astf>er(L. oleaster, 

 the oleaster from olea, the 

 olive), the wild olive so named 

 as much resembling the olive ; 

 the Ord. Elseagnacese, called the 

 Oleaster family, which see. 



olecranon, n., ol-ek'rdn-8n (Gr. 

 olekrdnon, the point of the elbow 

 from olenS, the elbow ; kranon, 

 a helmet, the head), in anat., 

 the projecting part of the upper 

 end of the ulna, forming the back 

 of the elbow : olecranoid, a., 

 ol-ek'ran-dyd (Gr. eidos, resem- 

 blance), resembling an elbow. 



