from Prof. Gardner, collected in elevated rocky places in the 

 Serra do Frio, in the Diamond District of Brazil. 



Fig. 1. gives a view of the upper side of the lip. 



This is one of those plants which ought to be grown in a 

 cool stove, or at least at the cool end of the common Orchida- 

 ceous house. A temperature which suits Dendrobiums, and 

 plants of that kind is very injurious to this species, and hence 

 most persons who grow many of it have a cool-house and a 

 warm one. It should be tied to a block of wood, or placed 

 in a basket, and hung from the rafters. Like the rest of the 

 family it is propagated by dividing the pseudobulbs. 



As the genus Lselia is one of the finest in cultivation, and 

 now consists of many species which have not lately been 

 brought into one view, the following enumeration of them 

 will probably be found useful. 



L^LIA. Lindl 



Sect. 1. Grandiflor^. Petals distinctly larger than the 

 sepals ; all but one are natives of Mexico and Guatemala. 



1. L. grandijlora (L. no. 1. Bletia grandijlora, Llave Nov. Veg. Descr. 2. 1/.); 



foliis binis aut teniis lanccolatis, bracteis membranaceis ampJexicauli- 

 bus, sepalis lanceolatis, petalis ovatis majoribus carnosis venosis late- 

 raliter emarginatis, labello purpureo-violaceo ad basin et medium albi- 

 cante profunde 3-partito ; lacinia intermedia maxima emarginata sub- 

 crenata, limbo undulato purpurascente, prominentiis variis petaloideis 



lutescentibus sulcata, punctis coloratis diversimode maculata Mexico. 



An obscure plant, inhabiting the province of Mechoacan, on trunks 



of trees, and called by the inhabitants Lirio, F/or de Corpus, and 

 Itzumaqua. 



2. L. majalis (Lindl. Bot. Reg. 1839. misc. 42. Bateman Orch. Mex. t. 18. 



Cattleya Grahami, L. 116.) ; folio aiigusto scapo bifloro sequali, brac- 

 teis membranaceis ovatis, sepalis lanceolatis, petalis oblongo-lanceolatis 

 duplo latioribus, labelli lobo medio rotundato emarginato piano laterali- 



bus parvis obtusis. Mexico, where it is called Flor de Mayo by the 



natives of San Bartolo, and the adjoining parts. Mr. Hartweg 



found it on the mountains of Leon, growing upon oak trees, at 

 the height of (S,000 feet, where it sometimes freezes. It is one of the 

 most beautiful of the whole order ; the flowers are of a bright violet 

 colour, and measure six inches from the tip of one petal to that of another. 

 The labellum is dotted and veined with rich purple. 



3. L. autumnalis (L. 115. Bateman Orch. Mex. t. 9. Lindl. in Bot. Reg. 



1839. t. 27. Bletia autumnalis. La Llave ) ; pseudobulbis ovatis tere- 

 tibus costatis apice attenuatis 2-3-phyllis, foliis oblongo-liuearibus paten- 

 tissimis scapo multo brevioribus, scapo tereti apice subsexfloro, bracteis 



