* * * * * DOCHNAHL’S CLASSIFICATION. SECTION I. PLEUROIDEA.--_ANGULAR OR RIBBED APPLES._ Having sharp or flat ribs, which extend over the length of the fruit, and are most prominent round the eye, where they are most generally situated. CLASS I. MALA CYDONARIA.--QUINCE-SHAPED APPLES. ORDER I. CALVILLA,--_CALVILLES._ 1. They have large heart-shaped cells, open towards the axis, or often entirely torn; the cells extend very often from the stalk, even to the tube of the calyx.--2. They diminish from about the middle of the fruit, or a little above it towards the eye.--3. They are regular, and provided generally with fine ribs, which do not disfigure the fruit.--4. On the tree the fruit is covered with bloom.--5. They are never distinctly striped.--6. Their flesh is soft, loose, fine, and light, of a balsamic flavor, similar to that of strawberries or raspberries.--7. The eye is frequently closed.--8. Many of them acquire by keeping, an oily or unctuous skin. GROUP I. FRUCTUS RUBRI--_FRUIT RED._ The fruit almost entirely covered with red. GROUP 2. FRUCTUS BICOLORES.--_FRUIT TWO-COLORED._ Yellow, very much striped or washed with red. GROUP 3. FRUCTUS LUTEI.--_FRUIT YELLOW._ Of a whitish, greenish, or golden yellow. ORDER II. PSEUDO-CALVILLA.--_BASTARD CALVILLES._ 1. The cells are the same as the true Calvilles, very large and open.--2. The calycinal tube is wide and generally very short.--3. They are slightly narrowed towards the eye, and flattened towards the stalk.--4. Their ribs are very prominent, especially round the eye.--5. They are aromatic, and have not the balsamic flavor of the true Calvilles.--6. Their flesh is fine, opaque, a little succulent, and almost equal to the Reinettes. _The Groups are the same as in the First Order._ CLASS II. MALA PYRARIA.--_PEAR-SHAPED APPLES._ Their flavor is neither balsamic nor aromatic; they are purely sweet or acid, their flesh is granulous and loose. ORDER I. TREMARIA.--_SEEDS LOOSE._ 1. These are almost always large apples, the skin of which is neither unctuous nor covered with bloom.--2. They are also furnished with ribs, but they are not so regular as in the Calvilles.--3. The cells are very large, irregular, widened, and generally open.--4. The calycinal tube is most generally widely conical, and does not extend to the cells.--5. They are of a flattened, conical, cylindrical, or pointed shape.--6. Their flesh is loose, more often a little coarse, and of a slight balsamic flavor.--7. The leaves of these trees are very large, rather deeply dentated, and less downy than those of the Calvilles and Bastard Calvilles. GROUP 1. FRUCTUS UNICOLORES.--_FRUIT SELF-COLORED._ Green, greenish-yellow, or golden yellow, and lightly tinged with red. GROUP 2. FRUCTUS BICOLORES.--_TWO COLORED._ Yellow or green, and distinctly striped or washed with red. ORDER II. RAMBURA.--_RAMBURES._