The plant should be kept in the greenhouse during summer, 

 for if placed out of doors it is liable to suffer from excess of 

 moisture. 



It is increased freely, as every leaf with a bud at the base 

 will soon form a good plant, if treated in the ordinary way. 



The following characters of some Orchidaceae will serve 

 to occupy an empty space in our pages. 



MICROSTYLIS caulescens; caide elongato folioso, foliis lanceolatis basi 

 angustatis, racemo laxo multifloro ccrnuo, pcdicellis filiformibus bracteis 



longioribus, labello acuminato intra basin biaurito. Tbe only caules- 

 cent species yet described. Tbe stem is about four inches long, and is 

 covered with ten or twelve distichous leaves. Tbe flowers are very small, 



green, in a thin raceme, about three inches long. Found by the late 



Colonel Hall in Peru, in the valley of Lloa, at the elevation of 8000 

 feet above the sea. (Herb. Hooker.) 



ISOCHILUS <yra«e?«/?o/'M»M ; vaginis imbrieatis, foliis distichis lineari-lanceolatis 

 acutissimis, floribus solitariis axillaribus, braetea, acuminata sepalorum 

 dimidio sequali, sepalis acuminatissimis, petalis duplo brevioribus con • 

 formibus, labello lineari-oblongo utrinque emarginato basi nudo, columna 



petalis parum breviore. This is very like I. graminifolium, but the 



flowers are four times as large, independently of the distinctions included 

 in the foregoing character. Good specimens exist in the Royal Her- 

 barium of Munich, collected in Peru by Hcenke ; but I find nothing like 

 it in the Reliquiae Hoenkeame. 



ISOCHILUS gramini folium (Humb. Bonpl. & Kunth, nov. g. et sp. pi. 1. 

 340. t. 78.) ; vaginis imbricatis foliis distichis lineari-lanceolatis acutis- 

 simis, floribus solitariis axillaribus, braetea acuminata pedunculo bre- 

 viore, sepalis aristatis, petalis conformibus duplo brevioribus, labello 

 lineari-oblongo utrinque emarginato basi callo magno duro oblongo, co- 

 lumna, petalis duplo breviore. When not in flower this is undistinguish- 



able from I. grandijiorum. It is well figured in Humboldt and Bonpland's 

 work, excepting the analysis, in which the form of the labellum is inac- 

 curate, and the presence of a hard oblong callus, called a purple stain 



in the description by M. Kunth, is overlooked. Peru, Matheivs, 1064 ; 



Trunks of trees near Lloa, Jameson. (Herb, propr. & Hooker.) 



LJELIA caulescens ; folio coriaceo lineari-oblongo caule tereti longiore, scapo 

 elongato tereti e spatha membranacea, cylindracea erumpente, racemo 

 subdecemfloro, bracteis squamreformibus erectis rigidis striatis, sepalis 

 petalisque subsequalibus lineari-lanceolatis acutis, labelli postici nudi lobo 



intermedio obtuso crispo lateralibus parum longiore. A species very 



near L. cinnabarina. The flowers are apparently purple, and about the 

 size of L. rubescensi The lip is perfectly destitute of all elevations or 

 inequalities. In the herbarium of von Martius is a smaller plant from 

 the same locality, with a three flowered raceme, and much shorter leoves; 



apparently it is a mere variety. From the Serra de Piedade in the 



province of Minds Geraes in Brazil (herb. Martius). 



