16 
RIGIDELLA flammea. 
Flame-coloured Stiff-stalk. 
a ——— 
MONADELPHIA TRIANDRIA. 
| Naf. ord. ÍRIDACEZA. 
RIGIDELLA. Folia equitantia, plicata, vaginantia. Wlores fascicu- 
lati, terminales, intra spatham bivalvem ; pedunculi sub anthesi decurvi, mox 
fructu maturescente strictissimê erecti. Perianthium triphyllum; foliolis 
basi imbricatis, convolutis, infra medium constrictis, limbo concavo revoluto, 
post anthesin spiraliter tortis. Stamina 3, in tubum exsertum connata, an- 
theris tantum linearibus, erectis, liberis. Stigmata 3, bipartita, dorso appen- 
diculata, antheris opposita; laciniis linearibus, apice papillosis. Capsula 
papyracea, apice 3-valvis, polysperma. Semina subglobosa, punctata, raphe 
et chalazà conspicuis. 
Rigidella flammea. 
This very pretty plant was found by Mr. Hartweg in the 
earlier of his excursions in Mexico, and was by him sent to 
the Horticultural Society, where it proves to be of easy culti- 
vation, requiring exactly the same treatment as a Tigridia. 
It grows from three to five feet high, with broad equitant 
strongly plaited leaves, which are dilated at the base where 
they sheath the stem. The flowers grow in a dense umbel 
from within a two-valved spathe, and open singly day by day ; 
they are drooping, and ofa bright flame colour, with a com- 
panulate tube, and a reflexed limb strongly marked at the 
base with short deep purple stripes. After flowering, the 
stalks, which are long and slender, become erect, and so 
rigid as to bear the seed vessel perfectly erect, even when 
gravid with seeds; from which circumstance the generic 
name has been contrived. ; 
Upon submitting the drawing to the Hon. and Rev. Wm. 
Herbert, who is now making this subject his peculiar study, 
that gentleman favoured me with a note, of which the follow- 
ing is an extract. 
