MALAXIDE. PLEUROTHALLE, 15 
X, OBERONIA. 
Sepala patentia v. reflexa, sepius inter se wqualia, libera. Petala sepalis 
minora, nunc iis conformia, nunc linearia, aliquando erosa. Labellum as- 
cendens, cum columnà haud articulatum, formå varia, sepius elongatum, 
semper magis minusve distincte 4-lobum : lobis lateralibus nunc dentifor- 
mibus, intermediis quandoque fer? connatis. Columna minima, libera, 
stigmate elevato. Anthera bilocularis. Pollinia duo, pyriformia, solida. 
—Herbe supra arbores et saxa crescentes, seepius acaules, foliis semper 
distichis. Scapus sepius anceps. Flores nunc racemo longissimo verti- 
cillati, nunc alterni, virides v. lutei. 
This genus is nearly related to Stelis from which it is obviously distin- 
guished by its labellum, and its habit. From Pleurothallis to which one 
species has been lately referred it is distinguished both by its habit and by 
its lateral sepals not cohering in any degree. 
Ut Oberon, regiolus ille Dryadeus, Empusarum septentrionalium princeps, 
in ramos arborum equitat, inter folia vultum multiformem abscondens, 
sic herbiole nostre, facie non minus mutabiles, in Indie sylvis latitant v. in 
curru suo frondoso triumphant. 
1. Oseronta iridifolia. Lindl. in Wall. Cat. no. 1948. 
O. foliis latis ensiformibus, racemo longo basi ancipiti multifloro, floribus 
verticillatis, bracteis fimbriatis, sepalis reflexis, petalis erosis, labello 
subovato obtuso fimbriato basi concavo, obsolete 4-lobo. 
Malaxis ensiformis. Smith. 
Cymbidium iridifolium. Roxb! Hort. Bengal. p. 63. 
Hab. in Zeylona supra arbores, Macrae; in Otaheite, J. Banks; in Indie 
Orientalis agro Napalensi et Sillet. Wallich. (hab.s. sp. e museo Anglo- 
Indico ; etiam e Zeylona.) 
Planta statura variabili nunc 3-unciali nunc sesquipedali. Folia ensiformia, 
recta, Iridis cujusdam facie, racemo, nunc longissimo, nunc abbreviato, 
nutante v. pendulo. Flores numerosissimi, lutei, verticillati, bracteis 
fimbriatis ; quà notà semper, quin defloratà dignoscatur. Sepala arcté 
reflexa, ovata, equalia. Petala minora reflexa. Labellum erectum, 
marginibus fimbriatis involutis, ita ut primá fronte integrum videtur 
(intus barbatum ex Roxb. mss.) Capsule parva obovate angulis 6 ele- 
vatis, 
2. OsEnon1A longibracteata. 
O. foliis rectis ensiformibus racemo nutanti subequalibus, scapo ancipiti, 
ern. subulatis floribus multó longioribus, labello truncato utrinque 
obato. 
Hab. in Zeylona supra rupes, Macrae (hab. s. sp. et v. ic. pict.) 
O. iridifolie similis quA differt foliis magis carnosis, bracteis petalisque 
integerrimis, floribus non verticillatis, demum labelli formå. Racemus 
minus elongatus. Flores virides. 
3. OnEnoN:A caulescens. Lindl, in Wall. Cat. no. 1950. 
O. caulescens, foliis ensiformibus angustis subfalcatis, racemo subflexuoso 
apice evanescente, floribus alternis, labello elongato cuneato bilobo basi 
carnoso obtuse bidentato. 
Hab, in Napalia ; Wallich. (hab. s. sp. e museo Anglo-Indico). 
