cum ovario 4-6 mm. longus. Sepaluwm intermedium 
ovato-ellipticum, apiculatum, vix 2.5 mm. longum, 1.5 
mm. latum; sepala lateralia valde obliqua, ovata, apic- 
ulata, plus 2.5 mm. longa, 1.7 mm. lata. Petala ellip- 
tico-oblonga, apice subtruncata, apiculata, basi subito 
angustata, marginibus sinuosis, sepalo dorsali aequilonga, 
1.4mm. lata; omnia tepala uninervia, saccis erystalliferis 
magnis instructa. Labellum sessile, orbiculare, apice re- 
tusum, basi columnam levissime amplectens, 2.8 mm. 
longum et latum, valde concavum; calear dependens, 
dimidio inferiore cylindricum, superiore anguste ovoideo- 
inflatum, 5 mm. longum. Columna brevissima, crassis- 
sima, apice+ truncata, androclinio leviter excavato, re- 
clinato; anthera duplo latior quam altior, rotundata; pol- 
linia oblique ovoideo-pyriformia, fere 0.5 mm. longa, 
stipite uno subspathulato-ligulato leviter sigmoideo 0.4 
mm. longo, viscidio transverse elliptico 0.2 mm. lato; 
rostellum breviter productum, obtusum. 
TANGANYIKA Trrrtrory: Luengera Valley, N. of Korogwe, at Ma- 
goma, 450 m. alt., epiphytic on isolated tree in very little shade, Dec. 
1942, Native Collector; comm. W.M. & R.E. Moreau 448. ‘‘Flower 
glistening white with coral-pink column, spur, central line on sepals 
and petals and spot at base of labellum; no scent.’ 
This charming little species very closely resembles M. 
HMirschbergu Summerh. in general habit, especially the 
very dense tuft of smooth grey roots, and also in the 
general structure of the flower. In details, however, 
there are numerous differences, and the color of the flow- 
ers is very different, M. Hirschbergii having two brown 
spots at the base of the lip, the flowers being otherwise 
pure white. A striking feature of M. corallina is the 
presence of large crystal-containing sacs in the tepals es- 
pecially near both sides of the central nerve. 
Microcoelia (§ Eu-microcoelia) ericosma Sw- 
merhayes sp. nov.; affinis M. Guyonianae (Reichb.f.) 
[ 25r | 
