1890 DR. LINDLEY ON WEST AFRICAN TROPICAL ORCHIDS. 
narrow unguis, to the middle of which the cushion is confined; 
the lamina of the lip too is nearly circular, with three short sharp 
teeth. The fruit is 11" long, clavate, with projecting ribs. It 
flowered in May 1861 in the Royal Botanie Garden, Kew. 
4. P. ODORATA ; foliis oblongo-lanceolatis membranaceis, spica pani- 
culata pubescente ramulosa, bracteis subulatis, sepalis setaceo-apicu- 
latis, labello cuneato trilobo unguiculato : lobis lateralibus falcatis ob- 
tusis intermedio rotundato, ungue carinato farinaceo. 
“Flowers white, fragrant.” Onitscha, (1483) Barter.— Fernando Po, 
June 1860. (436) Mann. 
Differs from P. ramulosa in its larger downy flowers and in the: 
form of the lip; from P. puberula also in the form of the lip; 
and from both in having a deep keel in the middle of the unguis. - 
5. P. TESSELLATA; foliis oblongo-lanceolatis pergameneis panicula 
stricta decomposita glabriuscula gracili ramulosa multo brevioribus, 
bracteis subulatis, sepalis acutis, labello cuneato unguiculato trilobo : 
lobis lateralibus falcatis obtusis intermedio subrhombeo emarginato 
ungue pubescente semicarinato. 
** Mouth of the Nun River, left bank, Aug. 1860." (—) Mana. Also 
“from the Cameroons,” Id.; but no specimen from that locality has 
been seen by me. 
This is much like a very large form of P. odorata, and possibly 
may hereafter prove to be nothing more. It is, however, a much 
stouter plant, with thicker and blunter leaves, and a tall erect cane- 
like stem with tier upon tier of fascicles of many-flowered dense 
spikes; there is little pubescence on the flowers, which are smaller 
and appear as if tessellated when viewed by transmitted light ; the 
middle lobe of the lip is rather different in form, and the keel in 
the middle of the unguis is shorter and more undefined. 
6. P. PYRAMIDALIS; foliis lanceolatis acuminatissimis, spica composita 
pyramidali densissima puberula, bracteis cucullatis acutis, sepalis 
acutis glabriusculis, petalis linearibus, labello cuneato plano sessili 
obtuso apiculato basi utrinque unidentato tota facie pulverulenta. 
* Epiphyte. Calyx and corolla yellow. Banks of the Nun River, Sept. 
1860.” (522) Mann. 
A. very striking plant, more than 11 foot high, with flat firm 3-5- 
ribbed leaves from 4 to 5 inches long. The spikes are short, dense, 
from 2 to 5 forming a pyramidal inflorescence. 
7. P. SETIFERA ; foliis oblongis acutis membranaceis supremo elongato 
spathaceo angustiore, spica subcomposita bracteis setaceis, floribus 
