: POINSET'TIA PULCHERRIMA. 
var. Albida. 
' SHOWY POIN SETTIA. 
Variety, White-bracted. 
EXOGENZ, DICOTYLEDONE &. 
ee} VY —WY 
NATURAL ORDER, EUPHORBIACE, 
MONOCHLAMYDEZ, ‘ Artificial divisions DECANDRIA, 
OF te which TRIGYNIA. 
DECANDOLLE. this Plant belongs. OF LINNE us, 
No. 70. 
PornserriaA. Granam. InvotucruM mono a ovatum 
andro ogynum, basi 5-loculare, extus appendiculo unico nectarif Fores 
pedicellati, nudi; masculi bifariam in singulis loculis ontthidl, ‘anonaniaeh; 
foeminei nee , centrales, germen trilobum; ovulum solitarium singulis lobis. 
GraHam in 
eyes OF THE GENUS, Porarrru. INVOLUCRE mono- 
phyllous, ovate, androgynous (bearing both male and female flowers), 
5-celled at the base, having a single external nectariferous appendix 
near the top. F.Lowers pedicellate, naked ; the staminiferous flowers 
arranged in two rows in each compartment, each flower consisting of 
one stamen (monandrous); the pistilliferous flowers solitary ; ovary 
three-lobed, containing one ovulum in each lobe. 
DESCRIPTION. OF THE Species, POINSETTIA PULCHERRIMA, 
VAR. ALBIDA, Sarvs erect, branched, branches hollow, round, 
when Jaane, obscurely four-angled. Leaves alternate, sometimes 
op >, petiolate, ovate, acute, unequally lobed, veined, veins often 
parallel, limb of the largest leayes about five inches long, and three 
broad, the mid-rib not in the centre, pubescent on both sides, but espe- 
cially the under, which is.of a lighter green. Bracts resembling the 
leaves, but smaller, the largest three inches long, not so much lobed, 
but unequal, and in the present variety of a white, or yery pale yellow 
colour, PaNnicLE cymose; pedicels articulated ; involucres likewise 
articulated, greenish yellow, turbinate, or ovate, toothed, externally 
marked by five furrows, with which internally alternate five falcate 
processes, which are narrow at the mouth of the involucre, but become 
broader as they descend towards the lower part, where they meet ina 
REFERENCE TO THE DissEcrTIONs. 
I, External view of involucre, es tiande its articulated pedicel. 2, Sections of involucre, showing 
the pistilliferous flower in centre, surrounded by the staminiferous 3, Pistilliferous 
* ttn hk 
mower 
appendage. a eimaatmesatiadipn etiam memtied, 
