400 MR. HENRY RIDLEY ON ORCHIDEX AND 
only differences that I can see lie in the deep purple colour of 
the leaf. The “crenate” rather undulate margin is by no 
means constant in the form. 
I have kept the green form C. variegata as the type, as it is 
by far the commonest ; and altered the varietal name to purpurea 
instead of using javanica because (both species being indigenous 
to Java) it has no distinctive meaning. 
CysToRCcHIS APHYLLA, Fidl., sp. nova. Herba 4-pollicaris, 
pallida, saprophytica, aphylla; vagine acuminate, superne rufes- 
centes ; radices pauce, crasse, fasciculate. Flores 3-4, parvi; 
ovaria ¢ poll. longa; bractes ovariis paullo breviores, lanceolate 
acuminate acute. Sepala } poll. longa, lanceolata acuminata, 
basi connata gibbosa, flavescentia apice rufescentia. Petala 
sepalis breviora angustiora. Labellum lanceolatum, basi 
saccatum, apice obtusum ; margines pro majore parte involuti. 
Columna subteres, superne incrassata. Anthera ovata; rostrum 
sursum curvum ; caudiculus longiusculus, acutus ; stelidia 
dentiformia, lata, divaricata; rostellum 0. Pollinia admodum 
fissilia ; fasciculi lineares, in pedicellis elongatis planis cuneati. 
Stigma terminale. 
Hab. Malacca: Dense jungle at Merlimanu, fl. November! 
A remarkable saprophytic species, in which the rostellum 
seems to be entirely suppressed, and the stigma upturned so 
that the pollen readily falls into it and fertilizes it. The lip 
has the shape of that of (. variegata, Blume; the base is 
excavate or depressed, the middle portion has the sides rolled 
in till they meet, but are open again at the apex. The thick 
rounded column may have been modified in the few flowers I 
bave seen by fertilization. Although the plant is self-fertilized 
there is plenty of nectar in the spur of the lip. The pollen is 
very pulverulent, broken up into very narrow wedge-shaped 
pieces, which readily fall into the lip, and as there is no 
rostellum, into the stigma also. It is a rare plant and I have 
only met with a few specimens in fruit and one in flower. 
ODONTOCHILUS, Blume. 
O. macrantuus, Hook. f., Fl. Brit. Ind., vi. p. 90, et Ic. Pl., 
t. 2161. 
Hab. Perak: Tea gardens, Maxwell’s Hill, Curtis! &e. 
