ONCIDIUM 



ONCOSPERMA 



0. abortivum, Reichb. f. Greater number of fls. abortive; perfect 

 fls. pale yellow with chestnut-brown markings. Venezuela. G.C. 

 III. 4(5:322. O. anfrdctum, Rolfe. Scapes rather slender, about 3 ft. 

 long; fls. bright yellow, with dark brown bars on sepals and petals. 

 Venezuela. O. ansiferum, Reichb. f. Sepals and petals oblong- 

 obovate, free, crisp; labellum with ligulate lateral lobes and a reni- 

 form, emarginate middle lobe, golden yellow, with 2 dark brown bars 

 at the base, flaccid. The sepals and petals are greenish, with yellow 

 tips. Colombia. 0. anthocrene, Reichb. f. Fls. yellow, brown- 

 barred, fragrant; sepals cuneate-oblong, undulate-crisped, acute, 

 about equaling the petals; lip with lateral lobes deflexed, the isthmus 

 narrow, the front lobe broad, reniform, 2-lobed. Colombia. O. 

 (trmillare, Lindl. Sepals and petals lanceolate, acuminate; crest of 3 

 flexuous keels. Peru. Gt. 7 : 296. O. Baldenamx, Reichb. f . (O. Bal- 

 derranue, Reichb. f. ). Panicle ample; dorsal sepals rounded, clawed, 

 crisp, yellowish olive-brown with a yellow border; lower sepals 

 longer clawed, cuneate-oblong, unicolored; petals oblong, short- 

 clawed, crisp, nearly complicate, smaller than the sepals, yellow, 

 with brown blotches; labellum hastate, ligulate, obtuse. Summer. 

 Colombia. O. Bdllii, Rolfe. Scape about 12 in. long; panicle about 

 7 in. long, many-fld.; fls. small, bright yellow with brown markings 

 on lower half of sepals and petals; base of lip dark shining brown. 

 Habitat (?). 0. Beyrodtidnum, Schlecht. Allied to O. varicosum 

 and O. flexuosum but distinguished by the crest of the lip, which 

 is simple, quadrate-rounded, and scarcely warty above the base. 

 O. bicotiense, Hort. ex-Lindl.=Odontoglossum sp. 0. bidentdtum, 

 Rolfe. Scapes slender, about 6 ft. long; fls. medium-sized, yellow 

 marked with brown. Ecuador. O. bifolium, Sims. Fls. yellow, 

 the dorsal sepal and petals brown-barred, undulate, the lateral 

 sepals united below; lip broad, reniform, 2-lobed. Argentina. 

 G.W. 10, p. 80. 0. cesium, Reichb. f.=O. Geertianum. 0. 

 caloglossum, Reichb. f. A supposed natural hybrid between O. 

 Marshallianum and O. Forbesii. Sepals and petals yellow, with 

 dark brown stripes nearly confluent on the petals. Brazil. Var. 

 concolor is a yellow-fld. form. 0. cardiochilum, Lindl. Panicle large, 

 lax-branching; fls. numerous, about 1 Yi in. across; sepals and petals 

 brown; lip yellow. Colombia. 0. Chdrlesworthii, Hort. (supposed to 

 be natural hybrid). Fls. racemose, chestnut-red, lip yellow at base. 

 G.C. III. 45:377. O. Clcesii, Rolfe. Sepals bright chocolate-red; 

 petals and lip deep carmine, shaded with violet. Colombia. O. 

 corynephdrum, Lindl. Sepals and petals rounded, undulate, light 

 rosy purple, broadly white-margined; lip orbicular, deep violet- 

 purple with a yellow base. Peru. G.C. III. 38:340. O. cristdtum, 

 Beer=Odont., cristatum. O. F6stermannii,HcTt.= n). O. fuscd- 

 tum Reichb. f.=Miltonia Warszewiczii. -O. Gdrdneri, Lindl. (O. 

 Gardnerianum, Hort.). Resembles O. crispum and O. Forbesii. 

 Fls. lemon-yellow, spotted and barred with chestnut-brown on the 

 sepals and petals; labellum broad, yellow, margined with the same 

 color; all segms. undulate, crisp. Brazil. G.C. II. 16:86. F.M. 

 1880:401. J.H. III. 47:415; 56:489. This is probably O. curtum, 

 Lindl., which should be referred to this species. -O. Geertianum, 

 Morr. (O. caesium, Reichb. f.). Species probably based on a variety 

 of O. reflexum. O. graminifdlium, Lindl. (O. Wraya?, Hook.). Fls. 

 panicled, yellow; sepals and petals blotched with deep brown, ob- 

 long-elliptic, acute; lip large, broadly obovate, lobed. Mex. B.M. 

 3854. O. Granesidnum, Rolfe. Pseudobulbs broadly oblong-com- 

 pressed, 3 in. long: Ivs. elliptic-oblong, 4 in. long: panicle large, 

 branching; fls. 2 in. across, yellow, spotted with brown; dorsal 

 sepals spatulate; lateral sepals lanceolate-oblong, united at base; 

 petals obovate, wider than the sepals; labellum pandurate, with 

 small spatulate lateral lobes and a broadly orbicular-ovate, undulate 

 middle lobe. Brazil. R.B. 21:73. G.C. III. 11:651. Near. O. 

 crispum. O. hastatum, Lindl. Sepals and petals yellow, spotted 

 with brown; labellum pale yellow. Mex. O. hybridum=O. ti- 

 grinum X O. lamelligerum. O. illustre is a supposed natural hybrid 

 between . O. leucochilum and O. maculatum. O. Jdnssenii=O. 

 tigrinum X O. Forbesi. O. Johnidnum, Schlecht. Lip 3-lobed, 

 shorter than sepals, lateral lobes very obtuse, about l /iin. long. 

 Brazil. 0. lamelligerum, Reichb. f. Fls. large; sepals light brown, 

 margined with yellow; petals very crisped, light yellow; lip narrow, 

 light yellow, stained with purple. Ecuador. O. lancifolium, Lindl. 

 (O. sessile, Lindl. & Paxt.). Pseudobulbs oblong: Ivs. short, pale 

 green: panicle much branched and bearing a large number of fls.; 

 sepals and petals large, obtuse, yellow, spotted with cinnamon- 

 brown at the base; labellum large, of the same color. Ecuador. O. 

 Ldvenderi.-^-O. Lawrencidnum, Reichb. f.=Brassia Lawrenciana. 

 O. Leopoldidnum, Rolfe. Fls. panicled, numerous; sepals and petals 

 white, with a large purple spot; lip violet-purple, the disk yellow. 

 Andes. G.M. 48: 711. O. Ldwii is a supposed natural hybrid. Infl. 

 over 6 ft. in length; fls. numerous, yellow spotted with brown. O. 

 Mdntinii is a supposed natural hybrid between O. Marshallianum 

 and O. Forbesii. Sepals and petals yellow, centers covered with rich 

 chestnut-brown; lip clear yellow, with few purplish brown spots. 

 Var. Ldwii, Hort., has the fls. unusually large. -O. McBeanidnum= . 

 O. superbiens X O. macranthum. 0. microchilum, Batem. Fls. col- 

 ored like O. crispum, panicled; sepals free, and, like the petals, 

 oblong, undulate, and retuse; lip nearly round, cordate, barely half 

 as long as the sepals. Guatemala. O. Mulleri, allied to O. cory- 

 nephorum and perhaps a form of it. Sepals and petals white, tinged 

 with rose; lip rose-purple, with a cream-yellow crest. Peru. O. 

 murinum, Reichb. f. A species with numerous small yellow fls. borne 

 in panicles. O. oblongatum, Lindl. Fls. yellow; petals flat, undulate, 

 with a few reddish brown basal bars. Mex. ^O. obryzdtum, Reichb. 

 f. & Warsc. Fls. golden yellow, spotted with brown, borne in a 

 much-branched panicle. Peru. Said to be an elegant winter-flower- 

 ing orchid. O. platybulbon, Regel. Panicle about 4 in. long; fls. 

 rather crowded; sepals and petals obovate-oblong, olive-yellow; lip 

 yellow. Brazil. Gt. 52:1518. O. pulchellum, Hook. Fls. race- 

 mose; sepals and petals whitish, the lateral sepals united; lip large, 

 quadrate, 4-lobed, flushed with rose and with a few yellow spots. 

 Jamaica. B.M. 2773. O. punctdtum is a supposed natural hybrid 



between O. Forbesii and O. Gardner!. 0. Reichenbachii, Lindl. 

 Colombia. O. Rimeridnum, Hort. Peduncle about 2^6 ft. long, 

 bearing 15-20 fls. ; sepals lanceolate, white, spotted with brick-red 

 and black; lip golden-yellow, spotted. Brazil. O. robustissimum, 

 Reichb. f. Fls. panicled; sepals and petals yellow at top, brown at 

 base; lateral lobes of lip serrate, the front lobe emarginate, marked 

 with cinnamon bars. Brazil. G.C. III. 38:45. O. rdseum, Beer= 

 Colchioda rosea. O. rupestre, Lindl. Fls. numerous, in a branched 

 panicle 2 ft. high, brilliant yellow, spotted with brown. Peru. Said 

 to be desirable. 0. Russellidnum, Lindl.=Miltonia Russelliana. 

 O. Sanders?, Rolfe. Lvs. brown-marbled: fls. on a long scape; dorsal 

 sepal linear-lanceolate, acute, reddish brown, about 3 in. long, the 

 lateral sepals oblong, crisped, yellow, brown-spotted, a little snorter, 

 nearly 2 in. wide; petals linear-lanceolate, similar to dorsal sepal ; lip 

 3-lobed, the lateral lobes rounded, crisped, yellow, brown-spotted\ 

 the middle lobe orbicular, clawed, crisped, about 1 J^ in. across. 

 Peru. B.M. 8374. O. sarcddes, Lindl. Pseudobulbs sub-cylindrical, 

 3 in. long, 2-3-lvd.: Ivs. lanceolate: panicle branched, many-fld., 

 slender; fls. large, yellow, spotted with brown; sepals free, obovate; 

 petals larger, clawed, obovate-spatulate, repand; labellum with 

 small serrate lateral lobes; middle lobe large, emarginate, undulate. 

 Brazil. I.H. 21:165. J.H. III. 58:92. Near O. ampliatum. Var. 

 orndtum, Hort., differs in the color of its fls. O. Schilleridnum, 



Reichb. f. Trop. Amer. O. Schlimii, Lind. A large, rampant 

 species, with yellow fls. marked with brown, about 1 in. diam. Nov. 

 Cent. Amer. 0. Stdnleyi, Hort., is a natural hybrid supposedly 



between O. Marshallianum and O. curtum. J.H. III. 53:267. O. 

 stelligerum, Reichb. f. Sepals and petals oblong-ligulate, stellate, 

 yellowish, with many brown dots; labellum with short, obtuse- 

 angled lateral lobes, a narrow isthmus, and a cordate, rotund, cus- 

 pidate middle lobe, pale yellow, with a darker callus. Mex. Near 

 O. hastatum. O. Volvox, Reichb. f. Venezuela. O. Warszewiczii, 

 Reichb. f. Pseudobulbs rounded, compressed: Ivs. 1 ft. long, thin: 

 scape stout, with an 8-13-fld. panicle; fls. yellow, with purple spots 

 and the middle of the labellum blood-red; upper sepals lanceolate, 

 acute, crisp; lower pair oblong, shorter than the labellum, united; 

 petals oblong, much wider than the dorsal sepals; labellum with 

 auriculate lateral lobes, and a reniform bifid middle lobe. Colombia. 

 O. Weltonii, Hort.=Miltonia Warszewiczii. 



HEINRICH HASSELBRING. 

 GEORGE V. 



ONCOBA (Arabian, onkob; name of a North African 

 species). Flacourtiaceae. Glasshouse woody plants, 

 grown sometimes for the bloom. 



Tropical and subtropical shrubs or small trees, some- 

 times spiny: Ivs. alternate, without stipules: fls. 

 terminal, solitary or clustered, white, reddish or yel- 

 low, large for this family, polygamous; sepals 3-5 and 

 petals 5-10; stamens very numerous, inserted in many 

 rows beneath the ovary; filaments filiform; anthers 

 linear, 2-celled, attached to the base, erect, opening at 

 the sides; stigma dilated, notched; ovary free, 1-celled; 

 style cylindrical : berry leathery, pulpy within; seeds 1, 

 few, or many, sometimes used as ornaments by the 

 natives. Species 25 or more, Trop. Amer. and Trop. 

 Afr., also S. Afr. 



Kraussiana, Planch. A branching shrub without 

 thorns, young Ivs. and shoots slightly pubescent, the 

 older branches having a rough ash-colored bark: Ivs. 

 elliptic-oblong to oblanceplate, obtuse or subacute, 

 entire, 2 in. long, with midrib, pinnate and netted veins, 

 somewhat pale on under side: peduncles terminal or 

 opposite the Ivs., 2-3 in. long; fls. erect, solitary, about 

 2 in. across, white; sepals roundish and very concave; 

 petals twice as long, spreading, with narrow claws, 

 cuneate at base, broadly obovate, with scattered, woolly 

 hairs; anthers pointless; stigma 5-6-rayed; ovary hairy. 

 Procurable in S. Calif. This makes a very fine pot- 

 plant in greenhouse temperature, flowering in spring. 

 It is also useful for subtropical bedding. Prop, from 

 ripewood cuttings, also from seeds. Give the plant a 

 sunny position, and plenty of water while new growth 

 is making. 



Rodtledgei, Sprague (0. spinosa var. Routledgei, 

 Hort.). Shrub, to 20 ft., with strong axillary spines: 

 Ivs. alternate, short-petioled, oblong or elliptic-oblong, 

 crenate-serrate, nearly glabrous: fls. white, fragrant, 

 about 2 in. across, one or two together on the old wood; 

 sepals 4, reflexed under the fr.; petals about 8; stamens 

 very many. Trop. Afr. G.C. III. 49:322, 330. G.M. 

 54:277 (as 0. spedosa var. Routledgei). L jj. B.f 



ONCOSPERMA (Greek, tumor-shaped seed). Pal- 

 macese, tribe Arecese. A group of little-known palms 

 not in cultivation in America outside of botanic gardens. 



