330 MR. H. N. RIDLEY’S REVISION OF THE 
prominulis; scapus angulatus ; bractew lineari-setaces, ovarii 
pedicellati dimidio subzquantes; labellum a basi rotundato- 
rhombeum, angulis posticis in cornua faleata extensis antice acu- 
minato, linea limbosa ante apicem labellum transeunte. 
Costa Rica, Desengano, Wendland. 
29. MICROSTYLIS ANDICOLA, n. sp. 
Caulis validulus, basi incrassata, conica, vagina laxa tectus 4- 
uncialis, radicibus longis lanatis; folia bina reticulata ovata am- 
plexicaulia subacuta remotiuscula subzqualia, 21-3 uncias longa, 
13 uncias lata; scapus strictus angulatus validulus 6-uncialis; 
umbella compacta $j-uncialis multiflora; flores parvi virides; 
pedicelli cum ovariis ferme 1-unciales; bractes ovate minime; 
sepala lanceolata subobtusa, posticum 4 mm. longum; petala an- 
gusta linearia quam sepala breviora; labellum basi saccato- 
hastatum oblongum obtusissimum, sepalis haud multo brevius, 
fovea profunda oblonga costa crassa mediana, marginibus incras- 
satis, auricul® erecto-recurve longiuscule lanceolate acute. 
Ecuador: Mt. Pichincha, among shrubs at 11000 feet alt., 
Jameson no. 450! 
The lip has the outline of M. hastilabia, but the apex is quite 
entire and blunt. | 
80. M. Morirzn, n. sp. 
Rhizoma longiusculum validulum; caulis gracilis viridis, 3- 
uncialis, basi vix incrassata; pseudobulbus conicus, 14 uncias 
longus, vagina albescente tectus ; folia bina ovata petiolata acuta 
patula subopposita subequalia, 23 uncias longa, 13 uncias lata, 
petiolus }-uncialis ; scapus gracilis, 3-uncialis; umbella parva 
congesta; flores plures virescentes minimi; bractew pallide 
lanceolate acuminate anguste; pedicelli j-unciales; sepala 
ovata lanceolata obtusa tenuia; petala angustiora linearia; la- 
bellum quam sepala brevius lanceolatum angustum acuminatum 
excavatum, nec vero foveolatum, costa mediana carnosa; auri- 
cule recurve anguste acute. 
Venezuela: Tovar, in shady woods on damp ground in the 
subalpine region, Sept.-Oct., Moritz no. 1862! Herb. Brit. Mus. 
The lip in this species is narrow and hollowed out, but there is 
no real fovea. The median vein is present, but the laterals are not 
visible. The flowers are very small, and the leaves are remark- 
ably patent. 
