更多placentation例句

1. To Santalaceæ they approach in processes, valvate corolla, and placentation, also to Loranthaceæ.
2. In the flowers of Saponaria officinalis Dr. Masters has observed instances of both marginal and free central placentation.
3. The disjunction or dialysis of the carpels, for instance, frequently renders axile placentation marginal.
4. In double flowers of Primulaceæ similar alterations in the placentation may often be observed.
5. The same excellent observer has recorded the occurrence of free central placentation in malformed flowers of Trifolium repens.