Tas. 8047, 
LISSOCHILUS Manon. 
Uganda. 
OrcuipacEs®. Tribe VaNpEex. 
Lissocnitus, R. Br.; Benth et Hook.f. Gen. Plant. vol. iii. p. 586; Rolfe in — 
Thiselton-Dyer Fl. Trop. Afr. vol. vii. p. 70. 
Lissochilus Mahoni, Rolfe (sp. nov.); affinis L. giganteo, Rchb. f., labelli 
lobis lateralibus viridibus brunneo-striatis, carinis magis validioribus 
distinctus. 
Herba terrestris, elata. decidua, habitu Phaiorwm majorum. Folia lan- 
ceolata, acuminata, basi multo attenuata, plicata, 43-54 ped. longa, 34-4 
poll. lata, viridia. Scapi validi, erecti, 6-8 ped. alti, infra medium 
vaginis tubulosis obtecti; racemi compacti, multiflori. Bracteze ovato- 
oblonges, acuminate vel obtuse, convolute, 2-1} poll. longewe, supra 
gradatim abbreviate. Pedicelli 14-1} poll. longi. Flores speciosi, 
diametro maximo circiter tripollicares. Sepala reflexa, obovato-oblonga, 
breviter acuminata, circiter 1 poll. longa, viridia, branneo-suffusa, 
Petala ovato-orbicularia, subobtusa vel obscure apiculata, circiter 1} poll. 
longa, roseo-lilacina. Labellum trilobum, circiter 1$ poll. longum ; lobi 
laterales erecti, late rotundati, crenulati, virides, intus venis brunneis 
paullo incrassatis radiati; lobus medius patens, oblongus, obtusus, 
lateribus retlexis et crenulatis, basi viridis, fronte purpurea, venis atro- 
purpnreis; discus tricarinatus; calli validi, undulati, denticulati, pallide 
virides, basi subattenuati; calear conicum, circiter $ poll. longum. 
Columna clavata, 9 lin. longa. _ 
Lissochilus Mahoni is a remarkable novelty, which was 
discovered by Mr. John Mahon, Curator of the Botanic 
Garden at Entebbe, Uganda, and sent to Kew in 1902. 
It flowered in a tropical house in April, 1905, and for 
several weeks formed a conspicuous object, standing above 
the tank of the Victoria House. It is a plant of large 
dimensions, its scape reaching a height of eight feet, 
almost rivalling its near ally L. giganteus, Rchb. f., one of 
the giants of the family, which is an ornament of the 
muddy shores of the Congo basin, as described by Sir 
H. H. Johnston in his work on the Kiver Congo, published 
in 1884. 
The group of species to which the two species mentioned 
belong is characterized by having broad or ovate bracts, 
and purple or lilac, occasionally white, petals, and com- 
prises about fourteen known species, all of them plants of 
large size. Three others are, or have been, in cultivation, 
DecemBer Ist, 1905. 
