PACHYSTOMA. 101 
shorter than the puberulous long-stalked ovary. Sepals and petals sub- nidi, spreading, 
elliptic, oblong, sub-acute. Lip sessile on the column, erect, oblong, sub-saccate or 
concave at the base, 3-lobed; the side lobes conical, bifid, diverging; the terminal lobe 
obcordate, the disc between the side lobes with two elongate dimidiate calli .separated 
by a mesial ridge passing forwards to the terminal lobe. Column elongate, dilated into 
wings towards the apex. Anther 2-celled. Politnia 8, narrowly clavate, cohering in fours 
to a small membrane. Lindl. in Journ. Linn. Soc. III, 22; Hook. fil. Fl. Br. Ind. V, 
814. Pachystoma Josephi, Reichb. fil. in Walp. Ann. VI, 464. Cymbidium 12101468, Don 
Prod. 30. 
Sikkim, in the Lachoong valley, elevation 10,000 feet, Hooker, Elwes; Pantling 
No. 405; in flower during July and August. Nepal; Wallich, Scully. | | 
The flowers are of a bright pule yellow, the lower half of the lip having numerous 
minute red spots. 
Pirate 139.—Spathoglottis ixioides, Lindl. А group of plants ; of natural sise. Fig. 1 lip, 2 column 
with anther én situ, 8 empty anther, lower surface, 4 pollinia; ай enlarged. 
12. Pachystoma, Blume, 
Terrestrial, with rather thick rhizomes. Leaves solitary or in pairs, following the 
flowers, long, narrow, many-nerved. сарез pale, leafless but with many sheaths; 
flowers white or pale purple, puberulous, rather small, in crowded racemes, Lip sessile 
on the footless column, erect, with oblong acute side lobes and small terminal lobe. 
Column short, dilated at the apex. Anther dorsal. JPollinis 8, pyriform, adhering to a 
single membrane. About six or eight species, Asiatic or African. 
PACHYSTOMA SENILE, Reichb. fil. in Bonplandia, ІП, 251. 
Terrestrial, leafless at flowering time. Rhizome rather stout, producing scapes at 
intervals of 2 inches. Leaf succeeding the flowers, solitary, membranous, linear, 4- or 
5-nerved, longer than the. scape. сарез about a foot high, very pale, clothed with 
numerous membranous clasping striate sheaths each 1 to 2 inches long; the raceme 
occupying the upper fourth, many-flowered. Flowers about “5 in. across, glandular- 
puberulous; floral bract lanceolate, acuminate, erect, longer than the curved stalked 
pubescent ovary. Sepals unequal; the dorsal oblong, elliptic, blunt; the lateral pair 
oblong-lanceolate, sub-acute, all spreading. Petals narrowly spathulate, recurved, puberulous 
like the sepals. Lip sessile on the base of the column, erect, broadly oblong, 3-lobed, 
the base gibbous and pubescent, the side lobes with acute falcate apices; the terminal 
lobe orbicular, short, recurved, the disc of the whole lip from base to apex occupied 
by five stoutly crested ridges. Column dilated at the apex, puberulous. Aniher on the 
back of the column, indistinctly 8-celled. PoJlinia 8, sub-clavate, cohering to a single 
cylindric appendage.  Reichb. fil. in Walp, Anr. VI, 463; Hook. fil. Fl. Br. Ind. 
V, 819. Р. Smithianum, P. mentanum and Р. Lindleyanum, Reichb. fil. 1, c.; and in 
Walp. Ann. VI, 462-403. P. Edgeworthii, Reichb, fil. Walp. Ann. VI, 463.  Apaturia 
senilis, А. Smithiana and A. montana, Lindl. in Wall. Cat. 3739, 3737, 3738; Gen. and 
Spec. Orchid., 130, 131, A. Lindieyana, Wight Ic. Plant. t. 1662. 
