96 
REVIEW. 
and sometimes surrounding fruits, as the calyx does the corolla. This, which 
botanists call by more than one name, according to its situation, I shall, for the ease 
and convenience of the learner, call the Scale. 
" Now these dozen terms — 
1. Calyx, 4. Stamen, 7. Pollen, 10. Style, 
2. Corolla, 5. Filament, 8. Pistil, 11. Stigma, 
3. Petal, 6. Anther, 9. Ovary, 12. Scale, 
are all which I shall trouble the learner to get perfectly, to begin with. One or 
two others, but not, I think, more than half a dozen, may be wanted as we proceed 
and these I shall explain as they occur. 
" It will make it easier for the learner to master these dozen terms, to consider 
the several parts as placed in five circles, one within the other. 
<c On the outer circle place the scale, whether it be leaf-scale, flower-scale, or 
fruit-scale. 
" On the second circle place the flower-cup, or calyx, whether it consists of one 
piece or several pieces. 
" On the third circle place the blossom, or corolla, whether it consists of one 
petal or several. 
"On the fourth circle place the males or stamens, whatever be their number, 
with their stalks or filaments, and their tips, or anthers, containing the tip dust, or 
pollen . 
" On the inner circle place the female part, or pistil, with the seed-organ, or 
ovary, at the base, the pillar, or style, in the middle, and the summit, or stigma, on 
the top. 
" When the learner examines any flower, these five circles must be kept in 
mind, and the parts placed on each of them must be examined in their order, begin- 
ning with the outer circle. 
" It will sometimes happen, however, that all the parts belonging to the five 
circles will not be found ; but after a little experience, the learner will easily distin- 
guish whether it be the calyx or the corolla, or any other part which is wanting to 
complete all the circles. 
" The dozen terms having been got perfectly, by going over them once and 
again, as well as the order in which the parts of the flower are placed on the five 
circles, the learner may next be taught how to find the class in which any flower is 
ranked by Linnaeus." 
