378 ORCHIDEA. 
teralibus dentiformibus, purpureo-venosis medio cordato paullo 
reflexa, villoso, viride venoso, color viride lutescens, cum co- 
lumnæ basi continua et sacculum parvum efformans, columna 
ereti uscula clavata. Clinandrium obtusum 3-dentatum. 
Anth. carnosa carnea. 
Pollinia indefinite lobulata, hinc sulcata sulco in massulas 
2 inæqualis divid. Gland. vel Rostellum revolutum materia 
viscosa replet. Stigma cordata viridescens materia viscosa 
nulla. у 
Has. Burma at the lower Kioukdweng of the Irrawaddy 
above Ava in sylye arenose. 
ARETHUSA. 
Arethusa ecristaia Gr. 
[Perianthum ringens bilabiatum. 
Labrum superum e sepalo postica et petalis tripartitis, in- 
ferior bilobum. 
Labellum cucullatum intus cristatum cum pede columnz 
articulatum. 
Columnz basi producta, apice dilatata, utrinque auri- 
cula carnosa auriculata. Anthera carnosa, exserta bilocularis. 
Pollinia 4 vix cohzrentia. Stigmatis lob. postica proferens. 
Spithamea. 
Radicum parasitum pallidum. Aphylla: flores albi. 
Genus Arethusz propinque.] 
Explanation of Plates of Arethusa, 
- Plate CCCXLIII. 
1. Young flower bud, posterior view, sepals not yet closed 
up, except at apices. 
la. Same parts spread open, the axils of the lateral petals 
are the young auriculz no trace of a stigma. 
15. Same anther not deflexed. 
2. Lateral view of column and lip at a more advanced step. 
2a. Same lip deflexed, auricule and stigma anterior be- 
