408 ORCHIDS 



Oncidium. 



and foliage, the plant is identical with O. macraiithiim. Flower- 

 spike twining, 6ft. to 12ft. long, branched, and many-flowered; 

 flowers over 2in. across; sepals and petals almost similar, ijin. 

 long, narrowed to a stalk at the base, -Mn. broad in the middle, 

 the point acute, and the margins very wavy, colour white, with 

 bands of reddish-purple across the lower half; lip small, bent 

 almost at right angles, fleshy, the crest thick, toothed, and warty, 

 colour yellow, with spots of red. "^'enczuela, 187 1. It requires 

 the same treatment as O. inacranfhuiii, and flowers in August, 

 remaining in beauty for about a month. (B. M., t. 613S.) 



X.\TURAL HyERHjS. 



calogluisiiiii S\"]i. O. Miti\\]u-iUiano-Fu}'hcsii . 



L'U'^antissinUd!! S\'n. Gai-Jiuri. 



JhibclUfi-nfiii S\"n. O'ard/nri. 



<-f,ii;ili,Ti Ijiirdncri-I'rrhrsi: ail'l dasyilylc. 



LiirkiuiauujH .S\n. Marsl:an lano-J-^arhcsii . 



Mniifinii .Syn. J/an/ial/iaiiii-J-'orliL'sn. 



.]/,lrxh,-i//„iiio -/'or/'Ciii 



(I'ig. 1411) J/iii-;JiiiI/i<inniii and Fin-ljesii. 



piitoj-alc ,S}-n. Mf'n-.\h<iIIiaini-I-'urbcsii. 



J'ollctiiainiDi ........ Saii Gfir<h':n'ri . 



pr{Tsfans .S\"n. Gard ncri . 



praitwtiim Smi. Gardiu-i-i. 



ll'heatlcyaiiiun crGpuni aiul dasvstvU. 



OPHRYS and ORCHIS. 



These genera are dealt with in the section on Hardy Orchids 

 at the end of the work. 



ORNITHIDIUM. 



About a score of botanical!}- interesting epiph}-tal 

 Orchids, belonging to the tribe Wiiidca;, are included in the 

 abo\-e-named genus. The name, gi\-en b)' Salisbury, is 

 from ivnis, ornitJios, a bird, and (7'(/()j-, like : the upper 

 lip of the stigma is beak-like. The species are natives of 

 tropical Ainerica, from Brazil to the West Indies. Flowers 

 mediocre, or rather small ; sei^als sub-equal, free, spreading ; 

 petals similar to the sepals, or somewhat smaller ; lip 

 affixed to the foot of the column, unguiculate at base ; 

 peduncles one-flowered, fasciculate in the axils ; leaves 

 oblong or elongated, thinly coriaceous. Stems in some 

 species ascending, and in others root-like and branching ; 

 sheathed with imbricated scales, and bearing one-leaved 

 pseudo-bulbs. Probabl)- the only species in general 



