to Morris the rootstock is often twenty feet long, its 

 ramifications conveying the impression of lattice-work. 

 The first plant to flower in England did so in the col- 

 lection of Mr. Walter Holland, Mossley Hill, Liverpool, 

 in August, 1885. In 1871, Reichenbach, dealing with 

 Spruce's specimens, had reduced Acacallis to Aganisia, 

 Lindl., and in 1885, on receiving, through Mr. W. Bull, 

 fresh flowers from Mr. Holland's plant, still adhered to this 

 view, but in recounting the history of the species inad- 

 vertently substituted the name coerulea for cyanea. This 

 is not the only mishap which has occurred ; the plant has 

 since then been described as Aganisia tricolor. That 

 Acacallis, with its saccate lip-claw, its different column, 

 and its scandent habit, cannot be an Aganisia, has 

 been established by Dr. Schlechter, who, however, in 

 dealing with the genus under the name Koch iophy ton, 

 overlooked the fact that it had already been characterized 

 by Lindley. The plant figured was presented to Kew 

 while in flower by Mrs. Charles Booth ; it was brought 

 from the Amazon by a commander of the Booth Line. It 

 thrives in the tropical Orchid House at Kew, and flowered 

 there in July, 1914. 



Description. — Herb, epiphytic ; rhizome very long, 

 woody, emitting many roots, creeping or climbing, and 

 clothed with imbricate sheaths; pseudobulbs small, 

 slightly thickened, 1-foliate. Leaves petioled, obovate- 

 elliptic, acuminate, somewhat plicate, 8-10 in. long, 

 li-3 in. wide. Scapes 6-8 in. long, with few sheaths, 

 racemes few- to many-flowered; bracts ovate-oblong, 

 acute, J-f in. long; pedicels | in. long. Flowers showy, 

 wide explanate. Sepals obovate, rather acute, concave, 

 1 in. long. Petals orbicular-ovate, 1-1 £ in. wide. Lip 

 stalked, erect then spreading; limb reniform-obovate, 

 emarginate, undulate, 1-1^ in. wide, concave at base ; disk 

 wide-crested at base; crest striate, fimbriate-toothed. 

 Column short, almost erect, f in. long, produced below 

 in a short foot ; wings rounded-oblong ; pollinia 4, pyri- 

 form ; stipes flat, obovate-oblong ; gland rounded. 



Fig. 1, base of the lip ; 2, column ; 3, anther-cap ; 4, pollinarium, seen from 

 behind and in front :— all enlarged. 



