1043 
SPIRANTHES grandiflora. 
Large-flowered Spiranthes. 
GYNANDRIA MONANDRIA. 
Nat. ord. Orchide*. Tribus Neotheee Lindl. 
SPIRANTHES. Suprd, vol. 10 .fol. 823. 
S. grandiflora; foliis obovato-lanceolatis obtusis glabris maculatis, scapo 
piloso, bracteis ovato-lanceolatis ovarii longitudine, perianthii laciniis 
inferioribus longissimk cum ovario connatis, labello cuneato-cucullato 
viridi-venoso apice deltoideo basi sagittato. 
Folia radicalia sublucida, hie illic colore pallidiore nebulosa, obovato- 
lanceolata, obtusa, patentia. Scapus erectus, 2-pedalis, basi glaber vaginatus, 
sursiim cum Jloribus pilosus. Bractese ovato-lanceolatcc, rig idee, pilosce, basi 
glabrae, viridi venosce , ovarii longitudine. Ovarium unciam feri! longum 
villosum. Perianthium connivens, laciniis camosis, parallelis; superiore basi 
corrugata, oblonga, apice recurva, intits nitida; lateralibus interioribus 
paulb brevioribus, obtusis, appressis, lucidis , atro-viridibus; lateralibus infe¬ 
rioribus basi in ovario per totam longitudinem decurrentibus, margine antico 
discretis, lamina eblonga, obtusa, labello longiore. Labellum cucullatum, 
cuneatum, pedicellatum, basi sagittatum, marginibus columnee arctissime 
agglutinatis, apice deltoideo, viridi-venoso. Columna brevis postice ad mar- 
ginem dentatus, antick pubescens. Stigma verticale, reniforme, semiclausum, 
rostratum, emarginatum. Anthera pedunculata, rostrata, bilocularis. Pol- 
Iinia duo, biloba, caudiculata, glandules emarginatae adheerentia. 
This new species was found near Rio Janeiro, by 
Mr. David Douglas, by whom roots were sent to the Hor¬ 
ticultural Society, in 1824. It grows freely in rotten 
mould in the stove, and flowers in October. It is the 
largest and most remarkable of the genus, except Spiran¬ 
thes elata, from which it is obviously distinguished. 
The cohesion of the labellum with the sides of the 
columna, which is very firm in all the species, is in this so 
powerful, that it may easily be mistaken for actual union 
of the parts. 
Leaves radical, somewhat shining, clouded here and 
