. A text-book of botany for secondary schools. Botany. SEED-DISPEUSAL 201 (Fig. 257), beggar-ticks (Fig. 258), stick seeds, etc.; and similar appendages are developed in connection with the involucres of cockle-bur (Fig. 259, A), burdock (Fig. 259, B), etc. Fleshy fruits are at- tractive as food to cer- tain birds and mam- mals. Many of the seeds (such as those of grapes) may be able to resist the attacks of the digestive fluids and es- cape from the alimentary tract in a condition to germi- nate. As if to attract the attention of fruit-eating ani- mals, fleshy fruits usually become brightly c
. A text-book of botany for secondary schools. Botany. SEED-DISPEUSAL 201 (Fig. 257), beggar-ticks (Fig. 258), stick seeds, etc.; and similar appendages are developed in connection with the involucres of cockle-bur (Fig. 259, A), burdock (Fig. 259, B), etc. Fleshy fruits are at- tractive as food to cer- tain birds and mam- mals. Many of the seeds (such as those of grapes) may be able to resist the attacks of the digestive fluids and es- cape from the alimentary tract in a condition to germi- nate. As if to attract the attention of fruit-eating ani- mals, fleshy fruits usually become brightly colored when ripe, so that they are plainly seen in contrast with the Fig. 259.—Heads of cockle-bur {A ) and burdock C-B), showing grappling appendages of the involucre.—After 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 Coulter, John Merle, 1851-1928. New York, D. Appleton
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1906
