EXPLANATION OF THE PLATES. 
264? 
PLATE THE EIGHTEENTH. 
Fruits. 
* 
.Fig. 1. Rubus Idaeus.' Dryadece. Fruit cut lengthways ; 
polycfalorion succulent, composed of several drupeolated 
akenia soldered together, one-seeded; seed coated, with- 
out a perisperm, hanging. 
Fig. 2. Rosa canina. Rosacea ?. Hip cut longitudinally ; 
calyx become fleshy, ovate; utricles in pits on thminternal 
surface of the hip, the central utricles pedicelled; pedicells 
fleshy, yellow, rather hairy; style persisting. 
Fig. 3. Agrimonia repens. Agrinionacece. The amalthsea 
cut transversely; calyx five-toothed, echinated; seeds three, 
ovate, not fleshy, slightly compressed, pointed at top, blunt 
at bottom. 
Fig. 4. Ranunculus muricatus. Ranunculacece . The poly- 
chlorion formed of many cariopsides, prickly on both sides. 
Fig. 5. Cariopsis of the same cut lengthways; embryo 
very small, in the base of the seed. 
Fig. 6. Fragaria vesca. Dryadece. The polychlorion. 
Calyx ten-cut; receptacle fleshy, wider than the calyx, 
ovate, globular, very large ; akenia numerous, small, ovate, 
acuminate, slightly compressed. 
Fig. 7. An akenium of the same. 
Fig. 8. Morus alba. Urticece. The sorose composed of 
several fleshy utricles, soldered with the calycine segments 
of the several flowers. 
Fig. 9. A single utricle of the same, with the fleshy seg- 
ments of its calyx displayed, magnified. 
Fig. 10. An utricle of the same opened and magnified. 
Fig. 11. Ambora Tamburissa. Urticece. Sycone, or fig, 
cut transversely, to show the several carcerules, immersed 
in the internal surface of the involucrum. 
Fig. 12. Pinus Americana. Abietidece. Strobile egg- 
shape ; cupules leatherlike, thick, triangular, rounded on 
the outer edge. 
Fig. 13. A cupuie of the same; nucules two, winged 
upon the outward side. 
Fig. 14. Embryo of the same, magnified; cotyledons 
four. 
Fig. 15. Cupressus sempervirens. Cupressidece. Galbule 
ovate, globular ; cupuie angular, upright, headed, edge of 
the head oblique and jagged, centre radiated. 
Fig. 16. A cupuie of the same. 
