plant is one in the Kew collection which thrives well in a 
tropical house under the conditions suitable for species 
of Mavillaria and Zygopetalum, and flowered there in 
June, 1914. It had been presented to the Gardens by 
the Dowager Lady Lawrence, earlier in the year, as part 
of the collection of the late Sir Trevor Lawrence, at 
Burford, Dorking, so rich in species previously unrepre- 
sented at Kew and rarely met with in cultivation. This 
species, P. microptera, was described in 1881 by Reichen- 
bach, whose material, which came originally from Mr. 
d’Haene of Ghent, had been sent by Mr. H. Veitch; a 
day later he received it also from Mr. B. S. Williams of 
Holloway. In 1890 material, probably from the original 
source, was communicated to Kew from the Royal 
Botanic Garden, Glasnevin, and there is little reason to 
doubt that the plant now figured had also formed part 
of the same importation, for the Burford label indicates 
that it reached Sir Trevor Lawrence from the collection 
of Mr. Williams. The nearest ally of P. microptera, as 
Professor Reichenbach and Mr. Rolfe point out, is a 
Brasilian species, P. anthina, Lindl.; this does not, by 
itself, entitle us to assume that P. microptera is also a 
native of Brasil rather than of Colombia or Guiana, 
though it suggests that possibility. 
Description.—Herb, epiphytic ; pseudobulbs clustered, 
ovoid, grooved, 4—} in. long, 2-foliate. Leaves lanceolate, 
acuminate, somewhat arcuate, plicate, pale green, 3-34 
in. long, 3-3 in. wide. Scaypes lateral, arcuate, slender, 
25-3 in. long, 1-flowered, sparingly sheathed near the 
base; bract lanceolate, acuminate, concave, over 4 in. 
long. lowers medium-sized, pale green, the lip with 
transverse purple bars. Sepals and petals spreading, 
oblong-lanceolate, acuminate, 2—3 in. long. Lip 3-lobed, 
¢ in. long; lateral lobes suberect, wide rounded-deltoid, 
rather blunt, short; mid-lobe elliptic-oblong, with a 
recurved, rather acute tip; disk with a transverse 
rather prominently tubercled crest. Column clavate, 
marginate. Pollina 4, obovoid, somewhat compressed, | 
adnate to a broad acute gland. 
Fig. 1, lip and column; 2, anther-cap; 8 and 4, pollinia :—all enlarged. 
