which the top of the column is figured at fig. 1. of the accom. 
panying plate, which is nearly allied to this, but appears dis- 
tinct. It has white sepals, and rose-coloured straight not 
curved petals. It requires further examination before its true 
value can be determined ; it is, however, very pretty. 
Considering the number of species, or supposed species, of - 
this glorious genus, now in our gardens, and the length of 
time that has elapsed since any arrangement of them has 
taken place, it seems desirable that they should be brought 
into one view ; especially as nearly all of them exist in our 
gardens. And I am the more induced to rearrange the genus, 
because I find some of the remarks made at t. 22 of the 
Sertum erroneous,— especially the statement that C. maxima 
is a Lelia, a mistake the origin of which I cannot trace. 
The division there suggested among the species is too arti- 
ficial; that now proposed will be found more natural. 
There is no character by which Cattleya and Lelia can 
be distinguished except the number of pollen-masses, which 
are four in the former, and eight in the latter. The flowers 
of Lelia are usually indeed in a raceme elevated on a long 
graceful stalk; but such is not the case in Lelia Perrinü, 
originally described by me asa Cattleya, and subsequently 
regarded by Sir W. Hooker (Bot. Mag. t. 3711) as a variety 
of C. intermedia ; nor in Z. virens. 
CATTLEYA. 
Section I. Lip rolled round the column. 
* Sepals of the texture of petals, the lateral quite straight. 
1. C. superba (Lindl. Sert. Orch. t. 22. C. Schomburgküi, 
Lodd. cat. no. 434.) ; caulibus clavatis sulcatis, foliis ob- 
longis marginatis caule brevioribus, sepalis oblongis 
acutiusculis, petalis lanceolatis acutis membranaceis fere 
dupló latioribus, labelli trilobi lobis lateralibus acutis — 
intermedio transverso plano emarginato denticulato basi 
venis elevatis rugoso, callis duobus pone basin.—— 
Demerara.—— Flowers deep rose-coloured, sweet scented, 
with a deep crimson lip. 
2. C. Skinneri (Bateman Orch. Mex. Guat. t. 13.) ; cauli- 
bus clavatis foliis binis ovalibus obtusis, spathá abbre- 
