. A manual of Indian botany. Botany. 2l6 CLASSIFICATION ferior, seeds germinating while tlie fruits still remain attached to the tree. The Order is well known from the Mangrove trees that grow in the swamps of the Sunderban. The germination of the seeds is most peculiar (fig. 185). The radicle perforates the apex of the fruit and elongates while the fruit still remains on trees. The elongated ra- dicle is often i to 2 feet long, cliib- shaped, and pointed at the apex. When the radicle is fully de- veloped, the embryo separates from the tree and falls per- pendicularly down into the mud below b
. A manual of Indian botany. Botany. 2l6 CLASSIFICATION ferior, seeds germinating while tlie fruits still remain attached to the tree. The Order is well known from the Mangrove trees that grow in the swamps of the Sunderban. The germination of the seeds is most peculiar (fig. 185). The radicle perforates the apex of the fruit and elongates while the fruit still remains on trees. The elongated ra- dicle is often i to 2 feet long, cliib- shaped, and pointed at the apex. When the radicle is fully de- veloped, the embryo separates from the tree and falls per- pendicularly down into the mud below by its own weight, and fixes itself there by its pointed and heavy end. Man-- grove trees also produce abundant breathing-roots—an adaptation to their environment. The Mangrove trees belong to the genus Hhizophora. Kandelia, Bruguiera, and Ceriops are other common genera of the Sunderban. Nat. Order 7. Combretacece.—Trees or shrubs, often climbing. Leaves usually simple. Flowers polygamo- dioecious or bisexual. Sepals usually connate, in a 4- to 5-lobed superior calyx. Petals usually 4 to 5, epigynous. Stamens 4 to 5 in i whorl, or 8 to 10 in. Fig. 185.—Mangrove—Chora {Rhizophora conjugata) r, Radicle Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bose, G. C. London, Blackie & Son Ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
