Plate 1785. 



A. OBERONIA HELPERI, Book. f. 



B. OBERONIA DEMISSA, Lindl. 



Orchidejj. Tribe Malaxide^:. 



0. Helferi, Hook. f. (sp. nov.) ; parvula, foliis brevibus ensiformibus 

 acutis membranaceis, scapo filiformi subnudo, bracteis lanceolatis 

 flores minutoB non excedentibus, petalis oblongis obtusis, labello 

 sepalis duplo longiore, lobis lateralibus parvis angustis, terminali 

 bicruri cruribns elongatis parallelis acutis v. subacutis. 



Hab. Tenasserim, Heifer. 



Planta tenera, 3-4-pollicaris. Folia ^-1 pollicaria, sicca translucida. 

 Hacemus laxiflorus, erectus v. decurvus. Flores hy<%lmi, ad -J (f poll, 

 lati, pallidi. 



b 0. demissa, Lindl. Fol Orchid. Oberon, No. 18; parvula, foliis 



lineari-oblongis obtusis subraembranaceis, scapo brevi folio supremo 

 basi adnato nudo, spica densiflora, bracteis brevibus acatis erosis 

 flores minutos subsessiles non excedentibus, petalis late oblongis 

 denticulatis, labello parvo 3-lobo, lobis omnibus subquadratis crenatis. 

 Malaxis demissa, Reichb. f. in Walp. Ann. vi. 211. 



Hab. Sikkim Himalaya ; at the foot of the hills, J. D. H. 



Folia 2-pollicaria, f poll, lata. Scapus subrobustus, racemo pallide 

 viridi. Flores ad ^ poll, lati, obscure verticillati. 



In fig. 5 Ihave given a copy of Lindley's drawing of the lip, which 

 I do not find to accord with that of his or my own specimens. 



J. D. Hooker. 



A. 0. Helfebi. Fig. 1 . Bract and flower. 2. Flower. Both enlarged. 



B. 0. demissa. Fig 3. Flower. 4. Lip. 5. Lip from Dr. Lindley's drawing. All 

 enlarged. 



