Weeds of the Farm and GardenOrange Judd Company, 1912 - 281 páginas |
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Página 125
... stamens and pistils ; complete when they have all the floral envelopes , calyx , corolla , and stamens and pistils ; regular when all the parts of each set are of the same shape and size , like the rose ; irregular when some of the dif ...
... stamens and pistils ; complete when they have all the floral envelopes , calyx , corolla , and stamens and pistils ; regular when all the parts of each set are of the same shape and size , like the rose ; irregular when some of the dif ...
Página 126
... stamens only . Flowers in which the petals are sepa- Fig . 65. Inflorescence . rate are called polypetalous ; when the Head of wild lettuce . petals are united , gamopetalous ; when The type of inflores- the petals are wanting ...
... stamens only . Flowers in which the petals are sepa- Fig . 65. Inflorescence . rate are called polypetalous ; when the Head of wild lettuce . petals are united , gamopetalous ; when The type of inflores- the petals are wanting ...
Página 127
... stamens are inserted on the calyx ; occasionally they are borne from the very summit ; I J T.Q Fig . 66. Flowers of barberry : c , sepals ; c ' , petals ; s , stamens ; P , pis- til ; a , anther ; n , nectar gland ; s ' , stamen . Fig ...
... stamens are inserted on the calyx ; occasionally they are borne from the very summit ; I J T.Q Fig . 66. Flowers of barberry : c , sepals ; c ' , petals ; s , stamens ; P , pis- til ; a , anther ; n , nectar gland ; s ' , stamen . Fig ...
Página 128
... stamens are in- serted upon the petals , they are called epipetalous ; when the pistils and stamens are united , they are gynandrous ; when the stamens are entire- ly separate , they are said to be distinct ; when the stamens are united ...
... stamens are in- serted upon the petals , they are called epipetalous ; when the pistils and stamens are united , they are gynandrous ; when the stamens are entire- ly separate , they are said to be distinct ; when the stamens are united ...
Página 129
... stamen , the flow- er is monandrous ; two , diandrous ; and so on . The parts of the stamen are the filament , anther , and pollen . When the pollen is united in a mass it is spoken of as a pollinium , Fig . 73. Regular flower of rose ...
... stamen , the flow- er is monandrous ; two , diandrous ; and so on . The parts of the stamen are the filament , anther , and pollen . When the pollen is united in a mass it is spoken of as a pollinium , Fig . 73. Regular flower of rose ...
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Términos y frases comunes
achenes alfalfa annual awned biennial blue grass bracts branched brome grass bull thistle C. M. King calyx Canada thistle carpels cent Cirsium clover seed clusters cocklebur common weed corn corolla crab grass crop cultivated curled dock dodder erect Europe five five-lobed four foxtail fruit germination glabrous glumes hairy herb horse nettle impurities inches long involucre Iowa lanceolate leaf leaves linear lobes marsh elder meadows milkweed Minnesota Missouri morning glory mustard native North numerous oats oblong ovary ovate ovules panicles pappus pastures pepper grass perennial petals petioled pigweed pinnately pistil Plantago plantain plants plowing poisonous Polygonum prickly pubescent purple quack grass racemes ragweed roadsides roots rootstocks Rumex sepals sessile sheaths sheep sorrel slender smartweed smooth soil species spikelets spikes spreading Spurge squirrel-tail stamens stem stipules sulphate Sunflower sweet clover Texas three feet high toothed troublesome weed U. S. Dept upper waste places weed seeds wild yellow