4 



on the north coast of New Holland, and before him by Sir 

 Joseph Banks in the same country. The reader will there- 

 fore he good enough to expunge the name of D. discolor, and 

 to substitute that of D. undulatum. 



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7. ONCIDIUM pergameneum. 



JLindl. in Benth. Plant. Hartweg. ined. 



This is a pretty species from a situation in Guatemala 

 called Medio Monte, where Mr. Hartweg found it in August, 

 1839. It has very thin pseudo-bulbs, sharp-edged, and some- 

 what furrowed on each side. The leaves are in pairs, from 

 five to six inches long by one and a half to two inches wide, 

 of a thin parchment-like texture, oblong, narrowing down to 

 their base and sharp-pointed. The flowers are in a weak 

 loose panicle, about two or three feet long, and have much 

 the appearance of O. Baueri. The sepals and petals are 

 narrow, sharp-pointed, wavy and brown tipped with yellow ; 

 the lip is all yellow, except a dull brown stain on each side of 

 the base of the middle lobe. The lip is in form like that of 

 O. Wentworthianum ; that is to say, it is broader at the base 

 than the apex, which is transversely oblong, with a small 

 point in front. The wings of the column are small, short, 

 and curved like a bird's bill, with a few obscure toothings on 

 the upper edge. 



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8. ONCIDIUM Suttoni. 



(Bateman mss.) 



gramineis ssepe scapo sequalibus 



ipsa basi paniculato angusto ramulis 3-5-floris, sepalis petalisque lineari 



auriculato 



cnstae 7-9-dentato, columns alis triangularibus 



A very distinct species from the same locality as the last, 

 where it was found by Mr. Skinner, to whose kindness I am 

 indebted for excellent dried specimens. The grassy leaves, 

 often as long as the erect panicle, although sometimes much 

 shorter, give it a peculiar appearance, added to which the 

 sepals and petals are a dull olive brown without any spots, 

 except at the point, where they are yellow, while the lip has 

 also but one dull olive brown spot occupying the centre of the 

 base. The triangular form of the wings of the column will 



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