. Flowers and their pedigrees . Fig. of flower of Wheat. Fig. 39,Flower of Wheat ( removed). distinctly like ribs on its flat outer surface. Here, itwill immediately be apparent, the traces of the originaltrinary arrangement are very slight indeed. But when we come to inquire into the rationaleand genesis of these curiously one-sided flowers, it isnot difficult to see that they have been ultimately 162 Flowers and their Pedigrees. derived from trinary blossoms of the rush-like first and most marked divergence from that type,for which the analogy of the sedges has alre
. Flowers and their pedigrees . Fig. of flower of Wheat. Fig. 39,Flower of Wheat ( removed). distinctly like ribs on its flat outer surface. Here, itwill immediately be apparent, the traces of the originaltrinary arrangement are very slight indeed. But when we come to inquire into the rationaleand genesis of these curiously one-sided flowers, it isnot difficult to see that they have been ultimately 162 Flowers and their Pedigrees. derived from trinary blossoms of the rush-like first and most marked divergence from that type,for which the analogy of the sedges has already pre-pared us, is the reduction of the ovary to a single one-seeded cell, whose ripe fruity form is known as agrain. At one time, we may feel pretty sure, theremust have existed a group of nascent grasses, whichonly differed from the wood-rush genus in having asingle-celled ovary instead of a three-celled pistil withone seed in each cell ; and even the ovary of thisprimitive grass must have retained one mark of itstrinary or
Size: 1157px × 2159px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1884
