2340 



OMl'HAl.KA 



ONCIDIUM 



twto^i with hoal. (>. IriniKlra. Linn., Coh-Nvt, Pop- 

 Nit. Pu^NiT, with obloii); olUiise Ivs. ami yollow fr. 

 1'.. in. tliiok. h!U< boon rvilt. in Ku. 'I'lu' blackoiiiu}; 

 juioo of tho fr. ha.-; Iwvn iiso<l in inii anil iho nut.< oaton 

 aftor ivnioval of tho |>«isonous onibno. \V. Indies. 

 L.B.C l>:"il9. ('. ;iii<;<ic(ir;xi, Honisl., with hmcoolato, 

 aouto Ivs., is nutivo ami oult. in tho W. Imlios, tho 

 larpe spoils, Hvntkh's-Nit, boinp catoii as a luitiiotit 

 and stimulant. H.I. 2">3". O. didmira, Linn., with 

 broaii ovato or oblonp Ivs., or a rolatoil spooios, hius boon 

 intro. from Iho mountains of Colombia, wlioro the oily 

 swsl is oaton and fod to hogs. j y. >ji Nouton. 



OMPHALODES (.Greek, nard-slmpcd; rcforrins to 

 tho seeds 1. liortujinaccsc. N.wki.wort. Flowor-garden 

 and bonier plants, something like forget-me-not ^ not 

 often .soon in .\inerioan gardens. 



Annual or perennial herbs of low growth, glabrous or 

 sparsely and minutely villous: root-lvs. long-stalked, 

 laneoolate, ovato or eordate; st.-lvs. few, alternate: 

 racvmes 1;vn, with or without a leafy bract at the base; 

 Cidyx .5-partod; corolla-tube very short; lobes .">, imbri- 

 cated, broad, obtuse; stamens .">, affixed to llie tube, 

 included; ovary -l-lobed. From Myo.sotis it differs in 

 having depressed nutlets and nearly horizontal seeds, 

 while in the forget-me-not genus the nutlets are ovoid, 

 and the seeds erect. Since the cult, material is doubtful, 

 the descri)it ions given below are atlaptetl mostly from 

 DeCandoUe's Prodromus, vol. 10 (1846), with which 

 the pietures cited agree rather poorly. The genus hero 

 characterized has the limits understood by Bentham & 

 Hooker, and by Gray. — .\bout two dozen species, 

 native to the ^Iedit. region. Cent. Asia, and Japan; 

 also in Mex. and sparingly in W. U. S. (the latter by 

 some referred to Eritrichium). For 0. lotujijlnra, see 

 Lindelophia. The grouj) to which Omi^halodes belongs 

 is variously understood by botanists. 



Of this genus a few low-growing hardy herbs are 

 cultivated, with flowers much like those of forget-me- 

 not, but larger and usually with a white five-pointed 

 star diviiling the corolla-lobes. The flowers are often 

 more or less pinkish, particularly toward the center. 

 They like moist situations, but in deep .shade grow too 

 luxuriantly; also the flowers are fewer and of a weaker 

 blue. Partial shade or full sunlight is preferable. The 

 comraone.st kind is the "creeping forget-me-not," 0. 

 verna, which is a spring-blooming perennial of easy 

 culture, producing runners freely and (easily propagated 

 by division. It can be grown by the yard in a rockery 

 and can be easily naturalized in wild moist half- 

 sha<lefi spots. It is also good for fringing walks. It is 

 said to like best a cool, moist loam, with a few bits of 

 sandstone among which the roots may ratnble and 

 from which they may derive coolne.ss and moisture. 

 Perhaps the choicest kind is O. Lucili^, also a sjiring- 

 blfKiming perennial, but of tufted habit and impatient 

 of division. It is a native of .Vsia Minor at a height of 

 S.fXK) feet, and grows in fissures of vertical cliffs. It is 

 said to like a loo.se limestone soil, deep and well drained. 

 When once established it self-sows. (). linifnlia is a 

 sumrner-blooming annual of ejwy culture. 0. verna has 

 a white-flowered kind, which is pretty but to most 

 persoas lacks the interest of a blue-flowered forget- 

 me-not. 



A. PlarU a summer-blooming annual. 



linlfdlia, Majnch. Erect, .slightly glaucous, 1 ft. high: 

 ra'lical Ivs. wedge-shaped; st.-lvs. linear-lanceolate, 

 margin remotely ciliate: corolla twice us long as the 

 caljTt: nutlets dentate, inflexed at the margin. Dry, 

 stony hills of .Spain and Portugal. .Iime-Sept. Accord- 

 ing to iJef.'andolle, the fls. are normally white, and it is 

 var. cxnilescens, DC, which has bluish fls., sometimes 

 tingeil with roni;. This intcre-sting species belongs to a 

 group of f^rnphalofies in which the nutlets are affixed 

 laterallv and length wi«<! to the style which is jjyrami- 

 dal and has a M<)Uare bas<;. 



.\.\. Plaiitti pcri'iinials, mantli/ a pring-hlnoming . 



verna, Moench. Cheei'iN(1 Fon(iKT-MK-NoT. Stolo- 

 nifonnis perennial: floworing-st. orec^t: Ivs. s])arsely 

 pulnTulous; radical ones long-pet ioled, ovate or sub- 

 cordate; st.-lvs. .short -pel ioli'd, sublanceolate; all Ivs. 

 aciuninato, Callous at (he apex: fls. borne in pairs in a 

 raceme. Aiiril, Mav. Eu. B.RI. 7 (as Ci/noglosnum 

 Oiiiplialodcs). Gn. 21), p. 151."); W:!.^; 72,' p.' 240.— 

 Fls. light blue, accortling to DeCandolle. Var. alba, 

 Horl.., is also offered, 



Lucilise, Boi.ss. Glabrous, tufted perennial: Ivs. 

 oblong, obtuse, the radical Ivs. narrowed into a lotig 

 petiole, the st.-lvs. sessile, upper ones ovate: pedicels 

 longer than the nearest floral If., erect, then arcuate- 

 recurved: fls. blue; calyx-lobes ovate-oblong, somewhat 

 obtuse, about one-fourth as long as the pedicels; corolla 

 broadly f\iimol-shaiie<l, about foiu' times as long as the 

 calyx: luitlets with an entire membranaceous margin. 

 Mt. Sypilus near Manesis, and in Cilicia near Gulf of 

 Scandoroon, at .S.OOO ft. B.M. (K)47 (S()me fls. light 

 blue, others pinkish purple, all with a white eve). Gn. 

 27: 194; G9 p. 283. G.C. III. 40:53. G. 28:413.— Fls. 

 about ' oxn. across, twice as large as those of 0. verna. 



comifolia, Lehm. (0. cappadbcica, DC). Perennial 

 herb, G~S in. high, sometimes grown as an alpine, with 

 variable but usually cordate-lanceolate Ivs. which are 

 silky-hairy and with prominent arching veins: fls. 

 .about ; oin. across, clear rich blue with small white eye, 

 in loose erect cymes. Asia Minor. G.C III. 53:380. 



nitida, Hoffm. & Link. Perennial, with erect branch- 

 ing glabrous sts. : Ivs. oblong-lanceolate, glabrous antl 

 shining above, pubescent beneath, the lower ones long- 

 petioled and the upper ones sessile: fls. sky-blue with 

 white center, in very long bractless racemes, the 

 pedicels and calyx pilose. Portugal. — Said to be a 

 plant of neat habit for half-shady moist places. 



0. Jlorarieiisis, Corr., is a garden hybrid between O. LuciliEB and 

 O. nitida (H. Corrcvon, Floraire, Geneva, Switzerland). 



WiLHELM Miller. 

 L. H. B.t 



ONCIDIODA (compounded from Oncidium and 

 Cocldioda). Orchidacese-. A genus established to con- 

 tain the hybrids between Oncidium and Cochlioda. 



0. Chdrlesivorthii (O. incurvum x C Noetzliana) has 

 the infl. of the former, the fls. scarlet and lavender. 

 F.E. 33:499. — O. cinnabarma=0. monachicum x C. 

 Noetzliana. — O. Co()ksonise=0. macranthum x C 

 Noetzliana. — O. Mauricii=0. tigrinumxC. vulcanica. 

 G.C III. 55:326. George V. Nash. 



ONCIDIUM (Greek, a tubercle; alluding to the crest 

 on the labellum). Orchiddcex. Epiphytal orchids for 

 greenhouse growing. 



Pseudobulbs u.sually pre.sent, wanting in a few spe- 

 cies, 1-2-lvd., with sheathing Ivs. at the base: Ivs. plane, 

 terete or triangular: petals like the dorsal sepal but 

 often much larger; lateral sepals either free or par- 

 tially united; labelhnn variable, but never with its base 

 parallel to the cokmin (Odontoglossum), spreading 

 nearly at right angles to the column; column short, 

 winged. — ,\ broa<l genus with over 300 species distribu- 

 ted in Mex., Cent, and Trop. Amer., and in the W. 

 Indies. In range of altitude the genus extends from the 

 hot coast regions to elevations of 12,000 ft. in the 

 Andes. The fls. of this genus show a remarkable 

 diversity of form. In O. varicoaum, O. ligrinum and 

 related species, the labellum is greatly developed, 

 fonning the most conspicuous part of the fl., while in 

 O. mrralum and O. macranihuin it is inconspicuous. The 

 sepals and j)etals vary in size in relation to each other 

 and to th(' rest of the fl. A remarkable example is O. 

 Papilio, in which the petals and dorsal sepal have been 

 transfonn(ul into linear-erect segins., recalling, on a 

 large scale, the antenna; of some insect. The general 

 habit of the iilants is no less variable than the fls. They 



