| It is sometimes difficult to say whether these structures are to be referred to the corolline or to the staminal row. |
| The staminal nature of this pseudo-corolla is inferred from the occasional presence of anthers on it. |
| The staminal row is more liable to multiplication of parts than the outer whorls. |
| In other cases, however, he observed that the pollen grains occurred on the inner side of what we now know as the staminal tube. |
| If the pistil protrudes beyond the staminal tube, cross-pollination may also occur. |
| Especially attend about the nectary exterior to the staminal tube. |
