. Collected papers on tropical fruits in California. Pomona College Journal of Economic Botany 293 surface is smooth and the carpellary areas are defined by raised lines, or in which the carpellary areas are individually concave. There are, of course, many forms intermediate between these two, and extreme forms of each. While both smooth and rough fruits are sometimes produced by the same tree, and some trees produce fruits which are covered with protuberances when young but become smooth at maturity, there are many which uniformly produce fruits of one type. Thus in the Mammillaris variety th
. Collected papers on tropical fruits in California. Pomona College Journal of Economic Botany 293 surface is smooth and the carpellary areas are defined by raised lines, or in which the carpellary areas are individually concave. There are, of course, many forms intermediate between these two, and extreme forms of each. While both smooth and rough fruits are sometimes produced by the same tree, and some trees produce fruits which are covered with protuberances when young but become smooth at maturity, there are many which uniformly produce fruits of one type. Thus in the Mammillaris variety the mammiform protuberances are present on all speci- mens, and in the Golden Russet the protuberances near the base, which disappear towards the apex and are replaced by concavity of the carpellary areas, are char- acteristics which are almost always present. 2. Size. In this respect the Cherimoya is extraordinary, it being possible to find mature fruits all the way from an inch to six inches in diameter on many trees, whether seedling or budded. Ordinarily, only a small percentage of the fruits. Figure 132. On the left a view in the huerta of Herman Evers, at Mazatlan, Mexico, showing a young Cherimoya in bearing; on the right, a large tree near Colima, Mexico, photographed during the winter season and showing the deciduous nature of the tree in cold climates. attain large size, although some trees are more uniform in this respect than others. 3. Form. The commonest form is conical or oblong-conical, but some varie- ties are normally cordate and there are many seedlings among whose fruits it would be difficult to determine a normal form. Rarely is there a tree whose fruits are all of uniform shape. Even among perfect specimens there is considerable variation, and many malformed fruits are produced, due^ without doubt, to imper- fect fertilization of the flowers. 4. Color. Although commonly a dull green, there is considerable variation in coloring, some varieties being light rus
Size: 2078px × 1202px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcoll, bookcontributorthelibraryofcongress, bookpublisherslsn
