. Agricultural botany, theoretical and practical. Botany, Economic; Botany. lOO THE FRUIT : DISPERSAL OF SEEDS (iii) The pome, of which an apple or pear are good examples, is an indehiscent fleshy pseudocarp whose gynseciura or true fruit is em- bedded in the re- ceptacle. When the pseudocarp is ripe the pericarp belong- ing to each carpel of the gynsecium Fig. 46.—Flower and fruit of gooseberry. A the flower, dcVClopS a tOUgh, __i ^__i_ _ _ '.—C ; . /^ 1 '.^ ir 1 —».:„.. ^e*\,^ . .«. calyx-tube, o inferior ovary ; C longitudinal section of the 1 pa tji pry nv boDV flower; 5 transverse section
. Agricultural botany, theoretical and practical. Botany, Economic; Botany. lOO THE FRUIT : DISPERSAL OF SEEDS (iii) The pome, of which an apple or pear are good examples, is an indehiscent fleshy pseudocarp whose gynseciura or true fruit is em- bedded in the re- ceptacle. When the pseudocarp is ripe the pericarp belong- ing to each carpel of the gynsecium Fig. 46.—Flower and fruit of gooseberry. A the flower, dcVClopS a tOUgh, __i ^__i_ _ _ '.—C ; . /^ 1 '.^ ir 1 —».:„.. ^e*\,^ . .«. calyx-tube, o inferior ovary ; C longitudinal section of the 1 pa tji pry nv boDV flower; 5 transverse section of the young ovary, / placenta " J with ovules attached ; D half-ripe inner Wall itS Cndo- carp—the rest of the pericarp being in some cases fleshy, in others hard and bony. Surrounding and united with these fleshy or bony carpels is the thick, fleshy receptacle of the flower which forms the chief edible portion of the pome (see Fig. 126 and chapter on Rosaceae, p. 387)- ^ Ex. 46.—The student should watch the development Qf the common fruits of the garden from the opening of the flowers to the ripe fruit. Observe what becomes of the receptacle, calyx, corolla, and androecium in each case. He should also examine the fruits of all useful plants of the farm, and those of common weeds. Careful descriptions of each should be made, noting whether they are:— (1) Dry or succulent. (2) Dehiscent or indehiscent and manner of dehiscence. (3) Developed from an apocarpous or a syncarpous gynjecium. (4) Developed from a superior or an inferior ovary. (5) One or many-celled, and the number of seeds in each. 3. Dispersal of Seeds.—In some cases the ripe seeds or the fruits containing them fall to the ground in the immediate neighbourhood of the parent plant; it will however, be observed, that by far the larger proportion of plants exhibit. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability -
Size: 1961px × 1275px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
