18 
BRASSIA Lawrenceana. 
Mrs. Lawrence’s Brassia. 
a 
GYNANDRIA MONANDRIA. 
Nat. ord. OncH1IDACEs, § VANDE. 
BRASSIA. Botanical Register, vol. 21, fol. 1754. 
B. Lawrenceana ; sepalis lateralibus elongatis, labello oblongo apice lanceo- 
lato subundulato : callo baseos simplici canaliculato truncato pubescente. 
Perhaps no genus of the Orchidaceous order is more worth 
cultivation than Brassias, for, without a single exception, they 
are handsome, and very easy to manage; most of them too are 
sweet-scented. But they are difficult to distinguish from each 
other, especially those which, like the species now figured, 
have the lateral sepals much lengthened out. 
At first sight, in examining this, one would refer it to B. 
macrostachya ; but the sepals are not half so long, and the 
tumour at foot of the lip is simple and truncated, not sloping 
forward, and supported by three advanced tubercles. 
In like manner B. Zanceana, which agrees with it in the 
truncated tumour, has two tubercles in front of it, and its 
lateral sepals are much shorter. When dried the sepals of 
B. Lawrenceana become bright brown, while those of B. Lan- 
ceana remain pale yellow. 
Finally, B. caudata has the lip of quite a different form. 
We are informed by Mrs. Lawrence that the species is a 
native of Brazil. It has very sweet-scented flowers. 
Fig. 1. represents the hairy tumour at the base of the lip. 
Like the other species this requires the heat of the stove, 
and should be treated in the same manner as Brassia maculata. 
