580 THE DICTIONARY OF GARDENING. 
Oncidium— continued. 
| Oncidium — continued. 
auricles at base, a long, narrow neck, and a broad, four-lobed O. Warneri (Warner's). /l. five to eight in a short raceme ; 
blade, the outer lobes broadest; raceme many-flowered. 
A showy species. [T.] 
QO. raniferum major (frog-bearing, larger). 
O. Hookeri. 
O. Rigbyanum (Rigby’s). A synonym of O. sarcodes. 
O. Rogersii (Rogers’). A yariety of O. 
varicosum. 
O. roseum (rosy). A synonym of 0, car- 
thaginense sanguineum. 
O. sanguineum (bloody). A variety of 
O. carthaginense. 
O. sarcodes discoidale (discoid). A 
trifling variety, having no spots on the 
front part of the lip. 1886. 
O. Sprucei (Spruce’s). f. bright yellow, 
produced in great profusion ; sepals and 
petals blotched red above, obovate, 
obtuse ; lip having the transverse middle 
lobe narrowly clawed, two-lobed, stained 
red at base ; panicles flexuous. /. some- 
times 2}ft. long. Brazil. Allied to O. Ce- 
balleta. [T.] 
O. stelligerum (star-bearing). jl. stel- 
late, paniculate ; sepals and petals yel- 
lowish, with many brown spots, oblong- 
ligulate; lip yellowish-white, with a 
darker yellow callus, the lateral lobes 
short, obtuse-angled, the isthmus narrow, 
the middle lobe roundish-ecordate, shortly 
and abruptly cuspidate. Mexico. Allied 
to O. hastatwm. [C.] 
O. s. Ernesti (Ernest's). /l. pale yellow, 
with large, rounded, brown spots on the 
sepals and petals, and a reddish-purple 
front lobe to the lip. Mexico, 1887. 
(W. O. A. vi. 260.) [C.] 
O. superbiens (superb). jl. 2kin. in 
diameter ; sepals chocolate-brown, tipped 
yellow, long-clawed, the upper one much 
crisped, reflexed at apex, the lateral ones 
more ovate and less curved; petals 
smaller, yellow above, barred chocolate 
below, cordate - oblong, recurved, with a 
shorter and broader claw ; lip blackish- 
purple, with a yellow crest, very small, 
revolute ; panicle loose, flexuous, twenty 
to thirty-flowered ; scape (and inflores- 
cence) 2ft. to 3ft. long. v. about 1ft. 
long, linear-oblong, acute, keeled. 
A synonym of | 
1886. sepals oval, spreading; petals narrower and ascending; lip 
bright yellow, three-lobed, flat, the middle lobe deeply parted 
into two roundish lobes. Autumn. J. linear-lanceolate, recurved. 
Pseudo-bulbs ovate, ancipitous, two-leaved. Mexico. Syn. 
Odontoglossum Warneri purpuratum (B. R. 1847, 20). There are 
two varieties: purpuratum, sepals and petals white, streaked 
Fic. 50, FLOWERING BRANCHES OF OPUNTIA MACRORHIZA. 
Pseudo-bulbs elongate-ovate, compressed, about Jin. long. New | bright purple ; sordidwm, sepals and petals dull yellow, streaked 
Grenada, Venezuela. (B. M. 5980.) [T.] 
purple. [C.] 
O. tigrinum lugens (mournful). /l., sepals and petals of a ONCOMA. A synonym of Oxera (which see). 
uniform, dark reddish-brown inside, the tips yellow, the dorsal 
keels green. 1886. 
ONOSMA. To the species described on p. 498, 
Vol. II., the following should now 
be added: 
O. pyramidalis (pyramidal), /. drooping, 
disposed in nodding, short racemes ; sepals 
sin. long, narrow-lanceolate, free to the 
base; corolla bright scarlet, fading to 
lilac, about as long as the sepals, nearly 
ellipsoid, with a rather contracted, trun- 
cate mouth, sparingly pubescent. Octo- 
ber. /., radical ones numerous, rosulate, 
10in. to 12in. long, nearly lin. broad, 
narrow-lanceolate, acuminate, narrowed 
towards the base; cauline ones 4in. to 
6in. long, sessile, lanceolate, acuminate. 
Stem 1}ft. to 2ft. high, stout, terete, pyra- 
midally branched. Whole plant covered 
with white hairs. Western Himalayas, 
1886. (B. M. 6987.) 
OPLISMENUS. To the species 
described on p. 501, Vol. IL., the fol- 
lowing should now be added: 
O. Burmanni albidulum (whitish), /. 
mostly white, with a green stripe along 
the midrib. India, 1886, A pretty, stove 
or greenhouse Grass, of dwarfer and more 
compact habit than the common varie- 
gated form, O. B. variegatus (Panicum 
variegatum, of gardens). 
OPUNTIA. To the species de- 
scribed on pp. 502-4, Vol. II., the fol- 
Fic. 49. FLOWERING BRANCHES OF OPUNTIA FILIPENDULA, lowing should now be added: 
