624 



ORCHID-GROWER S MANUAL. 



O. MONACHICUM, Mchb. /.—This is a very curious and distinct species 

 allied to 0. metallic mn, and producing large branching spikes of flowers after 

 the style of O. serratmn. The dorsal sepal is reniform crisped overarching, dark 

 lirown with a narrow yellow crisp border, the lateral sepals are large, cuneate- 



OXOIDIUM M0S.\CH1CUJ[. 

 (From the G((r(len<T.i' CJintniii/:') 



nblong, on long stalks; the roundish hastate incurved undulated petals cinna- 

 mon-coloured, blotched and edged with sulphur-yelloiv ; and the ligulate lip is 

 Jjrown, and has an angulate base and a remarkable double callus. It flowers in 

 March and April. — Neiv Grenada. 



'Fig.— Gitnl. Chnm., x.s., xix. p. 3ii>s, f. ."4. 



O. NIGRATUM, LincU. — A very pretty little species, with pyriform ancipitous 

 shinin" green pseudobuh)s, one or two ligulate acute leaves, and large branched 

 panicles of small starry flowers, of which the sepals and ]ietals are linear- 

 lanCeolate and much undulated, white barred with dark blackish-brown, and the 

 lip which is bluntly triangular in shape, is yellow with ]ialc cinnamon spots. 

 It blooms in March and April. The flowers are much like those of ( idonforih^ssirM 

 naeviiim, but smaller. — Ouiana. 



O. NUBIGENUNI, Linrll. — A lovely small-growing lint variable plant, some- 

 times regarded as a variety of 0. cnndlaium, and succeeding under the coolest 

 treatment, growing as it does at an elevation of 11,000 feet abo^'e the sea level. 

 It is somewhat more roliust in all its jjarts than MUtuuin Fhahiciiojmis, but 



