88 DEVELOPMENT OF THE FLOWER. 
vascular bundles large, two of them less papillose at apex. 
Receptacle of central flowers fleshy, rugose, concave, barren 
flowers arranged outside, under and all round it. “Odor La- 
biatoid. The greater perfection of the central flowers in this 
case shews that the spike is compound ? PI. 34.— Fig. 13. a. 
involucre. 
In Villarsia grandiflora, the placental tissue may be seen 
converging towards the opening of the stigmatic canal in a 
marked manner. [No glands, is there any relation between 
the want of these and the abundant cellular hairs of corolla ?] 
The stigmata in this are as many as there are placente, 
they are folded outwards; all the inner surface is stigmatic, 
as well as the outer, except the central line, or midrib. 
The stigmatic canal is well developed, but little papillose 
tissue occurs. The lateral ovarial vessels run up into the 
base of the style irregularly, presenting above only one fas- 
cicle, as usual clavate: and a laminar stigmatic surface, 
dentate or lobate, folded together outwardly. FV. cristata, 
presents a cordate stigmatic surface, with a tendency to 
recurve at the sides. Externally the surface is marginal, 
confluent at the apex, and internally covers the whole sur- 
face, the raphe is complete, but the crest is not formed till 
long after. 
Pladera. Juice of ovary sub milky, stigmatic surface right 
and left, laminar, style vessels 2, very small. Corolla 4-par- 
tite, 2 smaller lobes oblique, united one-third up; contigu- 
ous halves folded back, forming a niche in which the anther 
is sheltered. Tendency to irregular flower, in one addition- 
al stamen, petaloid in one sinus. 
T'acca pinnatifida. Perigonium herbaceum superum, ultra 
medium 6-partitum, laciniis lineari-oblongis, exterioribus ma- 
joribus. Stamina 6, sepalis opposita et adnata. Filamentis 
latis marginibus cohcerentibus, incrassatis, lividis; parte li- - 
bera, deflexo-inflexa in cucullum album, antheras fere omnino 
obtegentem ; apice 3-dentata, dente medio, e connectivo. 
Antheris bilocularibus, loculis linearibus, arcuatis (the 
arch pointing outwards, owing to deflexion) apicem cuculli 
fere attingentibus. Ovarium fere — parte liberà apice 
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