49 
The upper sepal is about the same size as the other, hut is 
more concave and pointed. Petals oblique, ovate-acuminate, 
of the same colour, but rather shorter than the sepals, and 
about three-fourths of an inch wide, having their edges slightly 
undulated and the point recurved. Labellum three-lobed, out- 
wardly of purplish-red colour, but inwardly more pale and deli- 
cate towards the base, where it tapers and forms a sort of pouch. 
The two lateral lobes are erect and of a pale brownish-red, 
marked with dark coloured veins. The middle lobe is roundish 
oblong, recurved and undulated at the margin. Outside it is 
smooth, hut the inner surface is thickly covered with pale soft 
hairs. In the centre of the lip is an elevated process, similar 
to those in the flowers of M. aromatica , omenta, tetragona, 
and other allied species. Column about half the length of the 
labellum, slightly curved, of a pale yellowish colour above 
where it was rounded, and slightly tinged with red below, 
where it is hollowed out so as to appear two-edged. Anther- 
case large and fleshy, one-celled, containing two collateral pol- 
len-masses, each of which easily splits into two roundish ovate, 
slightly pointed waxy bodies of a dull yellow. ’ — W. B. Booth. 
°For this memorandum, a drawing, and specimens of the 
highly curious plant, I am obliged to Mr. Booth, Sir Charles 
Lemon’s intelligent gardener. The species is much the finest 
yet known, its flowers being as large as those of Maxillaria 
Harrisoniae. 
The Maxillaria tetragona above referred to, as resembling 
this in habit, belongs to the genus Lycaste, in my recent enu- 
meration of whose species, it was unsettled. I therefore avail 
myself of the present opportunity of adding its amended 
character. 
64. LYCASTE tetragona. 
L. tetragona (Maxillaria tetragona, Lindl. in Bot. Reg. t. 1428. Hooker Bot. 
Mug. t. 3146 ); pseudobulbis ovatis tetragonis, foliis oblongo-lanceolatis 
plicatis basi in petiolum angustatis solitariis, scapis 1-4-floris pseudo- 
bulbis brevioribus, sepalis petalisque oblongo-ovatis obtusiusculis patulis 
subeequalibus, labello carnoso ventricoso trilobo erecto : lobis lateralibus 
parvis acutis intermedio ovato exths convexo, disci appendice carnoso 
tabulari incumbente. Brazil. Very sweet-scented. blowers 
greenish, streaked with crimson. Lip white and purple m one variety, 
and green and purple in another. The appendage of the disk is very 
conspicuous, and shoyel-shaped. 
