资讯

The blue atlas cedar (Cedrus atlantica ‘Glauca’) is a lovely evergreen tree. The conifer has a medium to fine texture with half-inch to 1-inch blue-gray-green needles in small tufts along the ...
1. The ripe microspore contains two much reduced prothallial cells, and body, stalk, and tube cells. 2. There is a single deeply placed megaspore mother cell. 3. Pollination occurs about the first of ...