926 
DISA ° grandiflora. 
Large-flowered Disa. 
——>—__ 
GYNANDRIA MONANDRIA. 
Nat. ord. Oncutpem. Sect. 1. Orchidee vere. 
DISA L.— Perianthium explanatum ; laciniis exterioribus liberis : pos- 
tic galeata I-calcarat4; interioribus nanis basi columne accretis, Label- 
dum basi columne insertum liberum integrum.  Coluwmna utrinque alata: 
alis petaloideis. Clinandrium dilatatum anticé supra stigma prominens tri- 
lobum: lobo intermedio inflexo. Anthera verticalis, loculis basi divaricatis 
solutis in clinandrio incumbentibus. Glandule nude. Stigma ad basin 
columnee, Oxs. Disa cornuta que clinandrio non dilatato et presertim 
anthera horizontali differt, forte genus proprium Pterygodio affine (RuPan- 
DRAM) indicat, cut species multe alie spicate referende sunt. 
D. grandiflora ; laciniis perianthii exterioribus maximis oyali-lanceolatis acu- 
_ minatis, calcare conico nutante, caule subbifloro. 
Disa uniflora. Berg. cap. 348. t. 4. f. 7. 
Disa grandiflora. Linn. suppl. 406. Swartz. act. holm. 1800. p. 210. 
Willd. sp. pl. 4.45. Pers. syn. 2.507. Ker in Journ. se. vol. 4,p. 205. 
tab. 5. f. 1. 
Satyrium grandiflorum. Thunb. prodr. 4, 
Caulis glaber, pedalis, foliosus, erectus. Folia lanceolata, acuminata, 
patentia, bast vaginantia, caulis longitudine, superiora sensim minora. Flores 
terminales, 1-3, maximi, spectost. Bracteze ovato-lanceolate, acuminate, 
nervose, ovarii longitudine. Perianthium explanatum, patens, laciniis exte- 
rloribus maximis, ovali-lanceolatis, acuminatis, lateralibus coccineis planis, 
superiore (galed) rubescente, venosd, cucullatd, supra basin calcare brevi obtuso 
vie tpsd galed longiore ; interioribus minimis ovatis ad basin columne. Label- 
lum anticum, lineare, acuminatum, laciniis exterioribus brevius, Columna 
erecta utrinque appendiculata : appendicibus ovalibus dimidiatis erectis cum 
antherd parallelis, margine laterali replicato, dentato, et cum dorso columne 
bast adnato ; clinandrium magnum dilatatum, antice declive, carnosum, supra 
stigma prominens, trilobum: lobo medio mflexo. Anthera terminalis, erecta, 
apiculata, in parte posteriore clinandrii inserta, connectivo carnoso rigido, 
loculis parallelis, basi divaricatis, solutis, in lobis lateralibus clinandrii in- 
cumbentibus. Pollinia gracilia, granulosa, sulcata: glandulis nudis. Stigma 
carnosum, concavum, ad basin columne. ‘Obs. In estivatione columna arcu- 
atur et clinandrii complicati lobi laterales tali modo supra stigma invertuntur, 
ut glandule polliniorum faciem stigmatis viscosam tangunt. — 
eee 
For this truly splendid plant, sabia has now flowered, 
probably, for the first time in Europe, we are indebted to 
VOL xt. M 
