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129. Alnus glutinnsn. The Black Alder. 1. Twig: with leaves, and the germs of male 

 and female blossoms of the next year. 2. Mule catkin in full bloom. 3, 4, 5, 6. A 

 full-blossomed capsule, from different points of view. 7,8. A four-lobed single 

 blossom, side and upper points of view. 9. Female catkin, enlarged. 30,11/12, 

 d view of fe 



13, 14, 15, 16. Enlarge 



male blossom, with appendages, and the fruit. 



17. The ripe fruit-capsule. IS. The same, opened. l'.>. A twig, with leaf-buds. 

 20. Cross-section of a twig. Of the above figures, only 1, 2, 17, 18, 19, and 20 are 

 of the natural size, the remainder being enlarged. 



