 | Jacob Bigelow - 1817 - 736 σελίδες
...have two cells. The pollen forms ten distinct, yellowish, transparent bodies, of a flat and spatulate form, ending in curved filaments, which unite them...long silken hairs. Receptacle longitudinal, loose, chaffy. The down or silk of the seeds, in this and other species, furnishes an admirable mechanism... | |
 | Jacob Bigelow - 1824 - 440 σελίδες
...have two cells. The pollen forms ten distinct, yellowish, transparent bodies, of a flat and spatulate form, ending in curved filaments, which unite them...long silken hairs. Receptacle longitudinal, loose, chaffy. — Dry soil. — Woburn, Newton. — August. — Perennial. ASCLEPIAS SYRIACA. L. Common Silk... | |
 | John Lindley - 1838 - 706 σελίδες
...the cells of 2 adjoining anthers, so that if a needle be inserted between the membranous edges of 2 anthers and forced out at top, it carries with it a pair of the pollen masses. Carpels 2, completely concealed beneath the stigma and anthers, ovate, with erect styles, terminated... | |
 | John Lindley - 1838 - 686 σελίδες
...the cells of 2 adjoining anthers, so that if a needle be inserted between the membranous edges of 2 anthers and forced out at top, it carries with it a pair of the pollen masses. Carpels 2, completely concealed beneath the stigma and anthers, ovate, with erect styles, terminated... | |
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The pollen forms ten distinct, yellowish, transparent bodies, of a flat and spatulate form, ending in curved filaments, which unite them by pairs to a minute dark tubercle at top. Each pair is suspended in the cells of two adjoining anthers, so that if... 