DESCRIPTION OF THE PLATES. 
Plate 110. — Menispeemem Canadense. 
A portion of a branch of the male plant in flower, and another of the female plant, also 
in flower, together with an analysis of its fruit. 
Fig. 1, a male flower on its bracteatod pedicel, before and after expansion, nat. size. 
Fig. 2, the three outer sepals. Fig. 3, the three inner sepals. Fig. 4, the six petals, 
with inflected margins, in different positions, one being expanded to show their shape. 
Fig. 5, seven of the more numerous stamens, unequal in size, in different series : all 
equally magnified. Fig. 6, four of the anthers, showing how they are afllxed upon their 
filaments, and their marginal dehiscence, more magnified. Fig. 7, a female flower, nat. 
size. Fig. 8, the three external sepals. Fig. 9, the three inner sepals. Fig. 10, the 
six petals. Fig. 11, the six sterile stamens fixed to the claws of the petals. Fig. 12, one 
of the three ovaries fixed upon a raised gynsecium, showing the relative position of the 
stamens and petals : all equally magnified. Fig. 13, one of the drupes, magnified more 
than twice its ruit. size. Fig. 14, the putamen deprived of its pericarp, showing the 
peripherical and one of the lateral prominent crenated rings. Fig. 15, an end view of the 
same, showing the three prominent rings. Fig. 16, a longitudinal section of the same, 
through the sutural line, showing the form of the cell, the laminiform condyle, and the 
aperture leading from the exterior into the internal groove between the two plates of the 
condyle. Fig. 17, the seed extracted, showing the extension of the thin integument, 
intruded between the two plates of the condyle. Fig. 18, the same, shown edgeways and 
dorsally. Fig. 19, the same, deprived of its integument, showing the position of the 
embryo in simple albumen. Fig. 20, the terete hippocrepiform embryo, seen also with 
the cotyledons separated, to show their incumbent position in regard to the radicle : all 
magnified to the same scede. 
Plate 111. — Peeicajiptlus incanus. 
A portion of a branch of the male plant in flower, and another of the female plant in 
flower and in fruit. 
Fig. 1, a male pediceUated flower, nat. size. Fig. 2, the same, with the sepals rotately 
expanded, magnified. Fig. 3, the three external bracteiform sepals. Fig. 4, the three 
intermediate sepals. Fig. 5, the three inner sepals. Fig. 6, the six petals. Fig. 7, the 
six free stamens : all equally magnified. Fig. 8, one of the petals, Avith its margins 
inflected round the stamen. Fig. 9, the petal expanded. Fig. 10, a stamen, seen side- 
ways and in front, showing the transverse mode of dehiseenee : all more magnified. Fig. 11, 
a petal and sterile stamen of the female flower. Fig. 12, the sterile stamen. Fig. 13, 
one of the three ovaries (two removed) upon the raised gynsecium, shoAving the relative 
points of insertion of the petals and stamens. Fig. 14, one of the ovaries, to show the 
form of the style and stigma: all magnified to the same scale. Fig. 15, a drupe, shown 
sideways and edgeways. Fig. 16, a putamen, seen in the same positions : all nat. size. 
Fig. 17, a putamen deprived of its pericarp, showing the three series of external spines 
around the concave, (fiscoid, imperforated condyle. Fig. 18, the same, seen edgeways, 
showing the sutural line. Fig. 19, a longitudinal division of the same through the line 
of suture, showing the form of the ceU round the flat inner face of the condyle. Fig. 20, 
a contrary section of the same, showing the form of the condyle and of the cell containing 
the seed. Fig. 21, a side view of the seed covered by its thin integument, which is 
expanded internally and insinuated between the two plates of the condyle. Fig. 22, an 
