989 
MEGACLINIUM falcatum. 
Falcate Megaclinium. 
GYNANDRIA MONANDRIA. 
Nal. ord. Orchideje. Tribus Malaxidese, Lindl. 
MEGACLINIUM. — Lindl. suprd, vol. 10 . fol. 832, in notis. Coll, 
bot. append. Orch. seel. p. x.—Bulbophylli pars. Pet. Th .—Ephippium; 
sect. 1. Blume. Flor. Nederl. 308 —et forth Diphyes ejusdem, sed habitus 
obstat. 
Pollinia 4 cereacea aequalia geminatim coheerentia, caudicula glandulaque 
nullis. Anthera terminalis, opercularis persistens minuta unilocularis. 
Stigma parvum intrusum, rostello emarginato. Columna plana, abbreviata, 
apice bicuspidata. Labellum integerrimum cum pede columnee elastic^ arti- 
culatum. Sepala exteriora basi connata: superiore difformi, interioribus 
nanis.-Herbee epiphytes, oligophyllce, ccespitoses, bulbosce (Africee et Asiee 
inter tropicos). Scapi radicales simplices; rachidibus dilatatis. 
Sect. I. Platyclinium. Lindl. ined. 
M. falcatum ; foliis binis ovalibus emarginatis biplicatis, rachide compressa 
falcata crenata, perianthii lacinia superiore obtusa apice utrinque callosa, 
lateralibus exterioribus reflexis bidentatis, interioribus minimis subulatis 
obtusis. 
Bulbi aggregati, ccespitosi, oblongi vel ovati, demitm subtetragoni, squa¬ 
ds rigidis striatis sphacelatis ad basin imbricati. Folia bina, erecta, ovalia, 
emarginata, utrinque plicata, margine purpureo, suprd. viridia, subtus palli- 
diora: junioribus subtils purpureo puncticulatis. Scapus radicalis, teres, 
squamis paucis vaginantibus, clavatus, in rachide desinens compressd, atro- 
purpurea, falcatd, crenatd, utrinque in facie floriferd. Flores sessiles, parvi, 
in dentibus faciei rachidis inserti, facie sud rachidem respiciente. Perian- 
thium ringens, laciniis exterioribus basi connatis: superiore erecto, oblongo, 
obtuso, apiculato, apice utrinque callis duobus luteis; inferioribus concavis, 
basi connatis, lath ovatis, reflexis, apice bidentatis obliquis; interioribus 
parvis, subulatis, obtusis, viridibus, apice luteis. Labellum ovatum, obtusum, 
basi excavatum, cum columnd elastice articulatum. Columna magna, mar- 
ginata, in ovario incumbens, cum basi sepalorum lat. ext. connata, plana, 
nitida basi producta, apice tridentata, dentibus lateralibus rotundatis,inter- 
medid antkeriferd, in medio stigma minutum intrusum fovente. Anthera 
minima, planiuscula, persistens, unilocularis, cristata. Pollinia 4, cereacea, 
binatim coheerentia, lutea, compressa, glandula et caudicula nullis. 
Sent to the Horticultural Society from Sierra Leone, 
in 1822, by Mr. George Don. It flowered, for the first 
