. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. Pollen grains. 867, Finns larico. 363, Basella rubra. 869, Eanunoulus repena. mufl grandiHorus. 871, Passiflora incarnata. 509. Each grain of pollen is a mem- branous cell or sack containing a fluid. Its coat is double, the outer is more thick and firm, exhibiting one or more breaks where the inner coat, which is very thin and expansible, is uncovered. In the fluid are suspended molecules of inconceivable minute- ), sai
. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. Pollen grains. 867, Finns larico. 363, Basella rubra. 869, Eanunoulus repena. mufl grandiHorus. 871, Passiflora incarnata. 509. Each grain of pollen is a mem- branous cell or sack containing a fluid. Its coat is double, the outer is more thick and firm, exhibiting one or more breaks where the inner coat, which is very thin and expansible, is uncovered. In the fluid are suspended molecules of inconceivable minute- ), said to possess a tre- mulous motion. When the membrane is exposed to moisture it swells and bursts, discharging its contents. 510. POLLINIA. In the Orchids and Silkweed. 3T« ST2, Section of the Passion-flower (Passiflora ctcrnlea); 6, bracts of the involucre ; «, sepals ; ^, petals; a,«, stami nodiaor sterile Olaments ; f, stipe; o, ovary; <f,stamens; 1, 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 Wood, Alphonso, 1810-1881. New York : A. S. Barnes & Burr
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisher, booksubjectbotany
