57 



and soon mark a cord of long soft vesicular tissue, which oc- 

 cupies the centre of the style. 



This cord of conducting tissue, of hexagonal form, in the 

 true Campanulas, whose stigma has three arms, is perfectly 

 distinct from the surrounding tissue, much more dense, and 

 coloured ; it is easily separated, and is entirely composed 

 of vesicles of a cylindrical or somewhat fusiform figure, very 

 long, colourless, quite separate at the sides, articulated to 

 each other, end to end, and containing very small regular glo- 

 bules of starch, becoming blue upon the application of iodine. 

 The pollen tubes which penetrate between the utricles of 

 this tissue are easily distinguished by being much finer, un- 

 articulated, and filled with very fine indistinct granules. 



^ 120. BLETIA secunda : foliis oblongo-lanceolatis acuminatis 7-nerviis, flori- 

 bus I'acemosis, sepalis petalisqvie herbaceis subsequalibus cuneato-oblongis 

 secundis coUateralibus, labelli trilobi laciniis lateralibus nanis erectis iu- 

 termedia membranacea obovata emarginata margine inflexa secus medium 

 bilamellata. 



Flowers green slightly dotted with crimson, with a straw- 

 coloured labellum. A species of no beauty, imported from 

 Mexico bv Messrs. Loddiges. It is remarkable for the sepals 

 and petals being all directed into a plane parallel with the 

 labellum and overlying the column. 



W^ 121. TRIGONIDIUM ringens ; pseudo-bulbis compressis subrotundis, foliis 

 oblongis recurvis coriaceis nitidis, scapo filiformi stricto distanter vagi- 

 nato foliorum longitudine, perianthio bilabiate : sepalo pcstico arcnato 

 petalisque oblongis margine revolutis labium superius lateralibus oblongis 

 apice obtuse carinatis inferius formantibus, labelli trilobi nani ciliati pu- 

 , bescentis lobis lateralibus dentiformibus : intermedio revoluto in medio 

 lucido basi callo reniformi antiee obsolete tridentato aucto, columna 

 pubescente. 



A singular species of Orchidaceous plant, forming dense 

 patches of fine vigorous deep green pseudobulbs and leaves, 

 promising something much better than the little insignificant 

 scentless yellowish-green flower which they produce. The 

 latter stands singly at the end of a very slender erect scape, 

 and is distinctly divided into two lips. The labellum is very 

 finely downy, ciliated at the edge, and slightly bearded along 

 four of the veins near its base on the upper side. The column 

 is moreover downy, and has a small collection of minute shining 

 hairs near its base. The species was introduced from Mexico 

 by Mr. Hartweg ; but had been previously discovered in shady 

 G. Avgmf, 1840. h 



