lum porrectum, triangulare, acutum, 2mm. longum, vis- 
cidio amoto fere omnino bifidum; fovea stigmatica fere 
orbicularis. 
Gabon: Upper Ngounyé River, Mourindou, Oct. 1926, Le Testu 
6357 (Tver in Herb. Le Testu). 
This remarkable plant stands alone among African 
orchids in its flattened green roots, similar to those in 
Phalaenopsis, Kingiella and other Asiatic genera. Other 
distinctive features are the single-flowered inflorescences, 
the striking lip and the column structure. The lip, with 
its numerous thickened branching veins is more reminis- 
cent of certain species of u/ophia than of an Angraecoid 
and this resemblance is carried further in the marked col- 
umn foot. The sides of the column are carried down in 
the form of wings onto the foot where they are joined to 
the margins of the spur opening. The lateral sepals also 
arise on the foot. The pollinarium shows certain features 
in common with that of Chauliodon, described above, but 
here the flattened apical part of the stipes forms a shal- 
low cup, with a low break in the rim on the posticous 
side, but almost completely enveloping the pollinia which 
are attached toward the base of the cup. The viscidium is 
massive and fleshy and fits under the triangular rostellum. 
Ankylocheilos Suwmmerhayes gen. nov. 
Epiphytica, aphylla. Cau/is brevissimus, radices flexu- 
osas simplices emittens. Inflorescentiae erectae, superne 
pauciflorae; bracteae minutae. //ores minuti, patentes, 
breviter pedicellati. Sepala et petala usque ad supra me- 
dium connata, inter se similia, parte libera lanceolata 
ovata, subacuta. Labellum liberum, ambitu lanceolatum, 
superne profunde cucullatum, apice ipso inflexum acutis- 
simum, basi utrinque dilatatum, obscure trilobatum ; cal- 
‘ar fere globosum, ore antice callo carnoso fere occlusum. 
Columna brevissima, truncata, antice utrinque lobo ellip- 
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