Tab. 5725. 



ONCEDIUM Maeshallianum. 



Mr. Marshall's Oncidium. 



Nat. Ord. Oechide^;.— Gynandeia Monandeia. 

 Gen. Char. (Vide supra, Tab. 4148.) 



Oncidium (§ Macropetala) Marshallianum ; pseudobulbo cylmdraceo- 

 ovoideo tereti, foliis anguste oblongis, floribus amplis flavis, sepahs 

 nanis superiore obovato apiculato lateralibus basi in unguem connatis 

 oblongis undulatis, petalis unguiculatis pandurseformibus 2-lobis, la- 

 bello amplo in unguem basi breviter auriculatum constncto, bmbo di- 

 latato transverse oblongo 2-lobo basi aperte cordato, callis in ungue 

 rostratis, columnar alis quadratis. 



Oncidium Marsballianum. Beichb.fil. in Gard. Chron. 1866, p. 682. 



This superb species of Oncidium was figured from a speci- 

 men flowered by W. Marshall, Esq., of Enfield, and is stated 

 by its original describer, Dr. Reichenbach, to have been in- 

 troduced by Messrs. Low and Co., of Clapton, but whence is 

 not stated ; it flowered in May of the present year. It is 

 most nearly allied to 0. perforate, Lindl, but differs in the 

 sepals and lip. . 



Descr. Pseudobulbs two to four inches long, ovoid-cyhn- 

 dric, terete. Leaves five to seven inches long by two broad, 

 oblong-lanceolate, acute, bright green above, paler below, 

 coriaceous. Panicle very large and broad, much branched 

 many-flowered. Flowers very large, two inches and a halt 

 broad across the petals, on slender pedicels, the pedicel and 

 ovary together two to three inches long, bright sulphur-yel- 

 low with purple blotches on the sepals, petals, and claw of 

 the lip. Sepals small, stipitate, upper one-third of an inch 

 long, obovate, apiculate, concave in the centre, banded with 

 purple; lateral placed under the lip, oblong, undu late, . con- 

 nate into the stipes. Petals shortly stipitate, broadly nddle- 

 shaped, undulate and crisped at the margin, two-lobed at the 

 apex, with purple, broad, transverse bars on the disk, lap 

 as large as the rest of the flower, contracted at the base into 



AUGUST 1st, 1868. 



