THE ORCHID REVIEW. 363 
ONCIDIUM DICHROMUM. 
The history of the mysterious Odontoglossum bicolor, Lindl., was 
given at page 69 of the present volume, where, on the strength of the 
original drawing, I reduced it as a synonym of Oncidium aureum, Lindl. 
This view now proves to be erroneous, for Messrs. F. Sander & Co. have 
just introduced a plant from Peru which is identical with the original 
drawing of Ruiz and Pavon, and though very near O. aureum is still quite 
distinct from it, and in fact is a much finer species. It agrees well in habit 
and colour of flower, but the sepals and petals are larger and broader, 
measuring 6 to 7 lines long, by 4 to 5 broad, and the lip of the dried 
flowers 14 inches in diameter, broadly obovate, truncate, and apiculate. 
The sepals and petals are reddish purple, and the lip bright’ yellow. The 
panicle has three side branches and about twenty-four flowers. Lindley’s 
drawing is a copy of one made by Matthews from Ruiz and Pavon’s original 
kept at Lima, and the dried materials now brought prove it to be very 
accurate. No such plant having appeared after.the lapse of over a century, 
I thought it must be an exaggeration of O. aureum. The two are nearly 
allied, but besides the larger size of the present one, and the differently 
shaped lip, there are a few free calli in front of the keels which are not 
found in O. aureum. As there is already a species called Oncidium 
bicolor Lindl., (since wrongly reduced by the same author to O. Martianum, 
Lindl.) the specific name of the present one must be changed, but the idea 
will still be preserved by calling it O. dichromum. The synonymy may be 
obtained from the article above mentioned. 
R, A. ROLFE. 
NOVELTIES. 
-MASDEVALLIA ForGETIANA, Kranzl.—A species from North Brazil, intro- 
duced by Messrs. F. Sander & Co., St. Albans, through their collector, Mr. 
Forget. It is evidently closely allied to M. infracta, Lindl., but the tube of 
the sepals is described as of a tender apricot tint outside, and a little darker 
inside.—Gard. Chron., Oct. 26th, p. 484. 
ANa:cTOCHILUS SANDERIANUS; Kranzl.— A species with prettily 
variegated leaves, introduced by Messrs. F. Sander & Co., St. Albans, from 
the Sunda Islands. It may be a new species, but the genus is as likely as 
not to be incorrect, nothing whatever being known of the flowers.—Gard. 
Chron., Oct. 26th, p. 484. 
MASDEVALLIA ECLYPTRATA, Kranzl.—A species which, flowered in the 
Berlin Botanic Garden in August last. The bract is described as like that 
of M. cucullata, Lindl., and the flower orange-yellow at the base, and 
approaching brick-red at the top. How does it differ from M. corniculata, 
Rchb. f. ?—Gard. Chron., Nov. 16th, p. 577: 
