curved, up to 18 cm. long but only 4-12 mm. broad, 
acute or very unequally lobed at the apex with the 
shorter lobe usually tooth-like; petals 1-nerved ; in- 
florescences up to 17 cm. long, rhachis short, 1-3.5 
em. long, up to 12-flowered; lip less than 4 mm. 
long, lateral lobes distinctly shorter than the middle 
lobe, spur 6-9 mm.long . . . . . . 9. parviflora 
Lateral lobes of lip very small, spreading ; flowers very small 
(dorsal sepal 2 mm. long); lip more or less cruciform with 
very short side lobes and thickened apex; spur longer 
than the lip, much swollen at the apex; leaves ligulate, 
2cm. long,4-7 mm. broad . . . . . . 10. Pobeguinii 
Petals rounded ovate, anticous margin scarcely dilated, adnate to 
lateral sepals for a short distance at the base; lip entire, broadly 
ovate, truncate or slightly cordate at the base; spur slightly 
longer than the lip; leaves linear, 1.5-5 em. long, 1.5-5 mm. 
broad; rhachis + zigzag, flowers 5-10 mm. apart 11. pusilla 
Pollinia with 2 separate stipites but a common viscidium; petals not 
much differentiated from the dorsal sepal, only shortly adnate to 
the lateral sepals 
Lip quite entire or with very obscure rounded side lobes, broadly 
ovate, spur about 2 cm. long; stipites of pollinia long and slen- 
der, not geniculate, viscidium convex, ovate; leaves ligulate, up 
to 9 em. long and 1 em. broad . . . . . . . . 12. holochila 
Lip with distinct acute tooth-like side lobes about or below the mid- 
dle, linear and very fleshy, spur 12 mm. long or less; stipites of 
pollinia short and thick, geniculately connivent, viscidium ob- 
long; dorsal sepal 3-4 mm. long; leaves very small, usually less 
than 2.5 cm. long 
Spur scarcely inflated in the apical part, 10-12 mm. long; side 
lobes at or just below the middle of the lip 13. amaniensis 
Spur markedly inflated in the apical part, about 4.5 mm. long; 
side lobes well below the middle of the lip 14. breviloba 
ENUMERATION OF SPECIES 
Section 1. Mu-angraecopsis Summerhayes 
This section contains all the species in which the char- 
acteristic features of the genus are best developed. In 
particular the long more or less spathulate forward- 
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