1128 



OLIVl 



u clear oil of the ti-ue Olive flavor and color. But the 

 American marlset demands a perfectly clear and bril- 

 liant oil put up in glass, and this is usually obtained by 

 filtering. This is detrimental to the flavor of the oil, 

 for the more it is filtered the more neutral and " greasy " 

 will the taste become. This practice, therefore, should 

 be discouraged, and the desire for the true Olive flavor 

 cultivated, making it impossible for cheap, neutral, 

 greasy substitutes (such as cottonseed oil) to take its 

 place in the taste of the consumer. Of the highest 

 importance throughout the entire process is the item 

 of cleanliness. The mill, press, floors, trays and all 

 apparatus should be scalded daily— when in use — and 

 no strong odor permitted about the premises: for so 

 absorptive is pure Olive oil that it will immediately 

 "take up" all unpleasant odors, and thus impair its deli- 

 cate flavor. 



For making pickles, no set rules can be laid down 

 except to emphasize the importance of careful picking 

 and handling (to avoid bruising) and cleanliness. Here, 

 again, the Olives should not be allowed to overripen; 

 if they are, they are likely to soften, and a first class 

 pickle will be impossible. The Olives as they come 

 from the trees contain a most acrid and bitter principle. 

 This is extracted by means of pure water, changed 

 daily, or by a weak solution of lye. The latter is almost 

 universally used, though the water-extracted pickles 

 are considered the best. The extreme length of time 

 required (from 30 to 90 days), and the consequent dan- 

 ger from bacterial and fungoid contamination in the 

 water process, renders its use impossible, except in 

 special cases. For lye-extraction a solution containing 

 from 1 to 2 per cent of lye is used, and the Olives 

 allowed to stand in this until nearly all the bitter prin- 

 ciple is extracted. Then they are soaked in pure fresh 

 water (changed two or three times daily) until all the 

 lye has been dissolved out. They are now ready for 

 salting. This is done gradually, i.e., a start is made 

 with a weak brine, and the strength gradually increased 

 from time to time until it is strong enough to float an 

 egg. This prevents shrinking and consequent toughen- 

 ing. The pickles are now ready for storing, and if prop- 

 erly prepared and put into boiled brine will keep for 

 years. This is the process in outline ; but in actual 

 practice each detail will require modification brought 

 about by varying conditions, and no "rule-of-thumb" 

 can be laid down to suit all cases. 



See Bulletins 104 and 123, and the annual reports of 

 the California Experiment Station. 



Arnold V. Stubenracch. 



OLIVE -BARK TBEE. Terminalia Vatappa. 



OLIVE, WILD. Olea Europcea ; also Elwagmis. 



OMPHALODES (Greek, navel-shaped; referring to 

 the seeds) Borraginiceo'. Navelwort. Of this 

 genus we cultivate 3 low-growing, hardy herbs, with 

 fls. much like those of forget-me-not, but larger aiul 

 usually with a white 5-pointed star dividing the corolla- 

 lobes. The fls. are often more or less pinkish, particu- 

 larly toward the center. They like moist situations, but 

 in deep shade grow tiio luxuriantly; also the fls. are 

 fewer and of a «• Mi i Mn I'^ntial shade or full sun- 

 light is prefeniM. 1'. ! I: -THst kind is the "Creep- 

 ing Forget-mi- I M ' liic-h is a spring-bloom- 

 ing perennial ot . iMoilucing runners freely 



and easily prop. h\ am, i..u. It can be grown by the 

 yard in a rockery and can be easily naturalized in wild, 

 moist, half-shaded spots. It is also fine for fringing 

 walks. It is said to like best a cool, moist loam, with a 

 few bits of sandstone among which the roots may ram- 

 ble and from which they may derive coolness and 

 moisture. The choicest kind is O. Lncilue, also a 

 spring-blooming perennial, but of tufted habit and im- 

 patient of division. It is a typical "uncertain" alpine: 

 for some it flourishes like a weed ; others have tried 

 time and again to establish it permanently without suc- 

 cess. It is a native of two localities in Asia Minor at a 

 height of 8,000 ft., and grows in fissures of vertical 

 cliffs. It is said to like a loose limestone soil, deep and 

 well drained. When once established it self-sows. In 

 America O. Lucilim has been successfully grown by J. 

 B. Keller, but the plant is not now advertised in this 



ONCIDIUM 



country. O. linifolia is a .summer-blooming annual of 

 easy culture. O. vernu has a white-fld. fcnii. wlji.li is 

 pretty but lacks the interest of a blui- IM I. I ^1 n . i , t. 



Omphalodes is a genus of about In lo 



the Mediterranean region, middle A^i,l i \ii 



nual or perennial herl)s of low gi-i-wti,. _;,ii,r..,, or 



hin.T.ihitii, ..v;iti- or c-or(l:iIe; stem-lvs. few, alterniitc: 

 rii.' THIS l;i\. witli ..?■ without a leafy bract at the base: 

 <'al\\ .'j-jjjiiiiii ; ioiolhi iiihc verv short: lobes .^. imbri- 

 cati-a. brua.i, obtuse; st:uuens 'f.. affixed to the tube, 

 included: ovary 4-lobed. From Mvosoiis it differs in 

 having depressed nutlets an. I iM:nl\ liorizoTifal seeds, 

 while in the forget-me-not irriui- ili. null, ts are ovoid, 

 and the seeds erect. The des.rij.ti..iis i^iv.n below are 

 adapted from DeCandoUe's Prodromus. vol. 10 (1846). 

 with which the pictures cited agree rather poorly. 

 A. Phint n smnmer-bloominy annual, 

 Unifdlia, :m . n l, I',, t. slightly glaucous, 1 ft. high: 

 radical Ivs ' ' : !: stem-lvs. linear-lanceolate, 



margin ri ■: ...nilla twice as long as the 



calyx: nui;. lill.-xed at the margin. Dry, 



stony hills .1 .s.|. .1111 .iiiil loitugal. June-Sept. Accord- 

 ing to DeCandolle, the fls. are normally white, and it is 

 var. ceerul6scen8 which has bluish fls., sometimes tinged 

 with rose. This belongs to a group in which the nut- 

 lets are affixed laterally and lengthwise to the style, 

 which is pyramidal and has a square base. 



AA. Plants spring-blooming perennials. 

 B. ITnhit rri-rping by runners. 



vima, .M. II li I 1,1 I iiNi; Forget-me-not. Stolo- 

 niferous: i' j i .net: Ivs. sparsely puberu- 

 lous; radi. :i n h.tioled, ovate or subcordate; 

 stem-lvs. sii.Mi |,i n I. -ulilanceolate: all Ivs. acumi- 

 nate, callous ai III. a|..\; fls. home in pairs in a ra- 

 ceme. April, May. Eu. B.M. ' {Cynoglnssum Ompha- 

 lodes). Gn. 26, p. 315; 40:818. -Flowers light blue, ac- 

 cording to DeCandolle. Var. &lba is also offered. 

 BB. Habit tufted, not creeping. 



Laciliae, Boiss. Glabrous, tufted: Ivs. oblong, obtuse, 

 the radical Ivs. narrowed into a long petiole, the stem- 

 lvs. sessile, upper ones ovate: pedicels longer than the 

 nearest floral leaf, erect, then arcuate - recurved : fls. 

 blue; calyx-lobes ovate-oblong, somewhat obtuse, about 

 one-fourth as long as the pedicels; corolla broadly fun- 

 nel-shaped, about four times as long as the calyx: nut- 

 lets with ;iii . iifiiv 111. iiilininaceous margin. Mt.'Sypilus 

 near Mam -i ' i i ia near Gulf of Scanderoon. 

 at 8,000 It 1 1 i fls. light blue, others pink- 



ish purpli. :. <' . 1. .-ye). Gn. 27:482; p. 194.- 



This and n i t j to a group in which the nut- 



lets are d. |o. --.,i, -ii..!i.,r than the persistent style, 

 scarcely a.ili. m.^ t.. it .i tlie base, and smaller than the 

 calyx, to xvlii.li It I- ii.liiatf. Fls. about K in. across, 

 twice as lar^- as il„,s,. ,,f O. verna. yf m. 



ONCtDIUH (Greek, a tubercle : alluding to the crest 

 on the labellum). Orchid<ice(e. A large genus of orchids 

 with over nOO species distributed in Mexico, Central 

 an.! ti . ],i. 1 \iii. lica, and in the West Indies. In range 

 of I' ! 1 mis extends from the hot coast regions 

 f.i I't 100 ft. in the Andes. The fls. of this 



;;. I . I imrkable diversity of form. In O. rari- 



fu.-.ui„, </. l:<;, If: II III and related species, the labellum is 

 greatly developed, forming the most conspicuous part 

 of the flower, while in O. serratum and O. macranfhiim 

 it is inconspicuous. The sepals and petals vary in size 

 in relation to each other and to the rest of the flower. 

 A remarkable instance is O. Pnpilio, in which the petals 

 and dorsal sepal have been transformed into linear-erect 

 segments, recalling, on a large scale, the antennse of 

 some insect. The general habit of the plants is no less 

 variable tliiui tin- fls. Thev range in size from small, 

 erect forms -, n. . Iv c, in.lics in height {O. pumilum)to 

 those resi-iiiiiliiiL' ". .//^^,s,«lHm, with immense climb- 

 ing paniclis ',1 t., IL' It. hiL'li. and covered with numerous 

 medium-sizud lis. Tin. prevailing color of the fls. is yel- 

 low, spotted and barred with brown. White or rose- 

 colored fls. occur in a few rare instances ( O. 

 O. ornithorhynchum) . 



