326 OPHRYDEX. 
sepalo supremo plano: lateralibus duplo majoribus, calcare cylindraceo 
apice obtuso inflexo ovario brevius. 
Platanthera acuifera. Lindl. in Wall, Cat. no. 7045. 
Hab. in regno Burmano ; Tavoy, Wallich. (hab. s. sp. e Mus. Angl. Ind.) 
Spithamea. Spica brevis. Bases anthere liberi elongati. Processus 
carnosi parvi, os calcaris ambientes. Anth. steriles ovate, elongate. 
Sepala lateralia labelli longitudine. 
85. Hasenaria densa, Wall. MSS. 
H. caule folioso, foliis oblongis acuminatis, spicà longissima cylindraceà 
densà, bracteis acuminatis ovarii longitudine, labello lineari obtuso 
indiviso, petalis sepalisque conformibus ovatis acutis conniventibus, 
calcare clavato ventricoso ovario breviore. 
Platanthera densa, Lindl. in Wall. Cat. no. 7046. 
Hab. in Napalia, Wallich. (hab. s. sp. e Mus. Angl. Ind.) 
Caulis 2-pedalis et ultra. Folia 5 poll.longa. Spica fere sesquipedalis. 
Flores parvi. Capsule ovate, brevirostrate, hexagone, angulis tribus 
costatis. Processus carnosi oblongi obtusi divergentes. 
Species facie propria. Perianthium campanulatum cum Habenaria male 
quadrat; sed notam nullam inveni ad genus novum conficiendum 
idoneam. 
Species dubia ; forte diversi generis. 
Hapenaria Sigillum. Thouars. Orch. Afr. t. 20. 
Hab. in Borbonia, Thouars. 
Folia in medio tantum caulis bipedalis, oblonga, acuminata, nervosa. 
Racemus laxus multiflorus. Bractez brevissime, squamiformes. Flores 
albi. Sepala ovata, patula, subaqualia. Petala postice emarginata, 
sepalis paulo minora. Labellum 5-fidum: laciniis linearibus basilaribus 
nanis, intermediis latioribus subfalcatis, intermedia e lata basi projiciente. 
Calcar filiforme, ovarii longitudine. Ad ic. Thouarsii. 
CLXXXVIII. ATE. 
Perianthium Orchidis. Anthera basibus divergentibus attenuatis cine 
stigmaticis adnatis. Glandule nude. Processus carnosi liberi, lamin 
cornea, spatulatà, deflexà, canaliculatà interposità. Anthere steriles 9 
lata basi angustata, fertilis fer& longitudine, apice incrassatæ. 
Herba radice tuberculos4, caule folioso, floribus herbaceis galeatis. 
This very distinct genus differs from Habenaria in having a ve 
horny, channelled, recurved tooth, arising from the anterior edge of p 
orifice of the spur, and curved down upon thelip: its use is unknown iet 
me. On account of its situation it cannot be considered analogous to the 
little appendage we find at the base of the lip of H. crinifera and —— 
petala ; whatever it may be, it is an organ so very highly developed, yet 
considering the great length of the sterile stamens, and the peculiar habi 
of this plant, I think we must admit it as a good generic character. 
