. The natural history of plants. Botany. ¥m. 16. Flower. Fig. 18. Diagram. Fm. 17. Longitudinal section of flower. Adenamtherd dehisces longitudinally,^ and is surmounted by a prolongation of the connective, forming a little caducous glandular ball. The gynseceum, inserted in the very bottom of the receptacle, consists of a single carpel superposed to one of the sepals. Its ovary, subsessile free and one-celled, tapers above into a slender style, scarcely dilated at the stigmatiferous apex. Inside the cell of the ovary and opposite to one of the petals* is a longitudinal parietal placenta, who
. The natural history of plants. Botany. ¥m. 16. Flower. Fig. 18. Diagram. Fm. 17. Longitudinal section of flower. Adenamtherd dehisces longitudinally,^ and is surmounted by a prolongation of the connective, forming a little caducous glandular ball. The gynseceum, inserted in the very bottom of the receptacle, consists of a single carpel superposed to one of the sepals. Its ovary, subsessile free and one-celled, tapers above into a slender style, scarcely dilated at the stigmatiferous apex. Inside the cell of the ovary and opposite to one of the petals* is a longitudinal parietal placenta, whose two vertical lips bear each a variable number of ovules in a row.^ They are descending and anatro- pous, with the micropyles upwards and outwards. The fruit is a narrow elongated pod, straight or curved. The pericarp opens lengthwise into two valves which usually curl back, their inner faces presenting the ru- dimentary false dissepiment which had hitherto sepa- rated the seeds (fig. 15). These are thick and sublenticular, containing in their coats a nearly horny albumen surrounding a Fio. 19. Ijongitudinal section' of seed. ' Their edges may sometimes stick together for a variable distance. ^ Or slightly imbricate near the apex. 3 The insertion of the filament is peculiar, as will be seen on referring to fig. IV. The corolla and androceum rise in fact from the rim of a little obconical common tube, inserted below, and external to the foot of the ovary ; and at the same point comes off the base of the calyx, seated evidently much lower down than the point where the stamens and petals separate, this peculiar insertion of the floral verticils is yet more marked in certain other Mimosem. * The pollen consists of a large nutaber of free grains, as is the case in all which this point has been studied. ' Called the vexillary petal. ^ There are five or six in each row in J_. pmonina L. {Spec, 550;—J acq., Collect., iv 212, t. 23;—DC, Frodr., n. 1).. Please note that these imag
Size: 1475px × 1694px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1871
