BUTTERFLY WEED. 61 
the segments subulate, reflexed and concealed by 
the corolla. Corolla five parted, reflexed, the seg- 
ments oblong. The nectary or stamineal crown 
is formed of five erect, cucullate leaves or cups, 
with an oblique mouth, having a small, incurved, 
acute horn proceeding from the base of the cavity 
of each and meeting at the centre of the flower. 
The mass of stamens is a tough, horny, somewhat 
pyramidal substance, separable into five anthers. 
Each of these is bordered by membranous, reflect- 
ed edges contiguous to those of the next, and ter- 
minated by a membranous, reflected summit. In- 
ternally they have two cells. The pollen forms 
ten distinct, yellowish, transparent bodies, of a flat 
and spatulate form, ending in curved filaments, 
which unite them by pairs to a minute dark tuber- 
cle at top. Each pair is suspended in the cells of 
two adjoining ‘anthers, so that if a needle be in- 
~ gerted between the membranous edges of two an- 
thers and forced out at top, it carries with it a pair 
of the pollen masses.  Pistils two, completely con- 
cealed within the mass of ‘anthers. Germs ovate, 
‘with erect styles. The’ fruit, as in other ‘spe- 
cies, is ‘an erect lanceolate follicle on a sigmoid pe- 
duncle, In this it is green, with a reddish tinge 
and downy. Seeds ovate, flat, margined, connect- 
ed to the receptacle by long silken hairs. Recep- 
tacle longitudinal, loose, chaffy. 
