. Lessons in botany. Botany. MYRTIFLORjE. 271 The fruit.âWhat parts of the flower are united in the fruit ? Describe the fruit. What is such a fruit called ? How are the seeds freed ? What is the difference between a fruit and a seed in the pea plant ? The clover (irifolium,.âIf it is desired to study a clover, study one in a similar way. Nitrogen gatherers. â The pea, clovers, etc., are often called nitrogen gatherers (see Chapter XV). During an excursion let the pupils dig up dif- ferent leguminous plants, like the pea, clover, lupine, etc., and search for the "tubercles" on their
. Lessons in botany. Botany. MYRTIFLORjE. 271 The fruit.âWhat parts of the flower are united in the fruit ? Describe the fruit. What is such a fruit called ? How are the seeds freed ? What is the difference between a fruit and a seed in the pea plant ? The clover (irifolium,.âIf it is desired to study a clover, study one in a similar way. Nitrogen gatherers. â The pea, clovers, etc., are often called nitrogen gatherers (see Chapter XV). During an excursion let the pupils dig up dif- ferent leguminous plants, like the pea, clover, lupine, etc., and search for the "tubercles" on their roots, compar- ing the form of the tubercles on the different kinds of plants. Pollination. â If the flowers of cy- tisus from a conservatory are at hand attempt to press the point of a pencil in between the parts of the keel in the case of flowers where these parts are still closed ; describe the action of the stamens in throwing the pollen. How could cross-pollination be brought about in such a flower by the visits of insects ? Study the common lupine (Lupinus perennis) in the same way. Study the pea flower with the same â object in view; has the pea flower become adapted to self-pollination ? Material.âSprays of leaves and flowers ; fruit. Material can usually be obtained fresh early in the spring ,,, ... , Mw Flg- 2» and for some time later. Ugf Section of flower f ( Topic VII: Dicotyledons with distinct petals and epigynous flowers. Order Myrtiflor^e. (The study of the evening primrose may be omitted.) 434. Lesson XV. The evening-primrose family (onograceae). âIn the evening-primrose (Oenothera) the flowers are arranged. 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 Atkinson, George Francis, 1854-1918. New York, H. Holt and company
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