Text-book of botany, morphological and physiological . Fig. 48.—Cells of a very thin section through a cotyledonof the embryo in a ripe seed o{Pisum sativum; the largeconcentrically stratified grains st are starch-grains (cutthrough); the small granules a are aleurone, consistingprincipally of legumine with a little oily matter; zthe inter-cellular spaces. Fig. 49.—Cells from the cotyledon of the ripe seed oi Lupin us varius; A in alcohol containing iodine ; B after destruction ofthe grains by sulphuric acid; z the cell-wall; / the protoplasmic principal mass, containing but little oily matter
Text-book of botany, morphological and physiological . Fig. 48.—Cells of a very thin section through a cotyledonof the embryo in a ripe seed o{Pisum sativum; the largeconcentrically stratified grains st are starch-grains (cutthrough); the small granules a are aleurone, consistingprincipally of legumine with a little oily matter; zthe inter-cellular spaces. Fig. 49.—Cells from the cotyledon of the ripe seed oi Lupin us varius; A in alcohol containing iodine ; B after destruction ofthe grains by sulphuric acid; z the cell-wall; / the protoplasmic principal mass, containing but little oily matter ; y the aleurone-grains; a drops of oil expelled from the principal mass by action of the sulphuric acid; m empty spaces from which the aleurone-grains have been dissolved (x8oo). homogeneous matrix, which, as closer investigation shows, consists, according to theoiliness of the seed, of more or less oil combined with albuminoids. The grainsthemselves, on the other hand, consist, independently of certain enclosed matters,of albuminoids. In the g
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875
