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Vergleichende Untersuchungen liber die Elementarorgane des 



Holzkorpers. Bot. Zeit. 21 : 85-128. 1863. 



Saupe : Der anatomische Bau des Holzes der Leguminosen. Flora 70 : 



259-268, 275-282, 295-306, 307-316, 323-335- 1887. 



Soleredef; Anatomie der Dicotyledonen, 288-319. 1899. 



Strasburger; Ein Beitrag zur Entwicklungsgeschichte der Spaltoffnun- 

 gen. Jahrb. Wiss, Bot, 5: 297-342. 1866. 



Tschirch : Ueber die Entwicklungsgeschicte einiger Sekretbehalter und 

 die Genesis ihrer Sekrete. Ber. Deuts. Bot. Gesells. 6: 2-13. //. 

 I. 1888. 



Trecul ; Du tannin dans les Legumineuses, Compt. Rend. 60; 225- 

 229. 1865. 



Du tannin dans les Legumineuses. Ann. Sci. Nat, V. 4: 378- 



382. 1865. 



— Du tannin dans les Legumineuses. Adansonia 7: 113-117 



1866. 



Vuillemin: Sur revolution de Tappareil secreteur des Papilionacees. 

 BulL Soc. Bot. France 38: 193-200. 1891. 



Weyland : Beitrage zur anatomischen Characteristik der Galegeen. 

 Bull. Herb. Boiss. I : Appendix 3: 1-74. 1893. 



Wittlin: Ueber die Bildung der Kalkoxalat-Taschen. Bot. Centralbl. 

 67: 33-41, 65-73, 97-102. //. I. 1896. 



Hxplaiiatiou of plate 29 



1. Stem in first year, showing distribution of main tissue areas. Chlorenchyma, 

 stippled; stereome, black; vascular bundles indicated in outline. Magnified 12 

 diameters. 



2. Spine in first year^ as above, showing the greater development of the stereome. 

 Magnified 12 diameters. 



3. Surface view of epidermis of leaf. Magnified 250 diameters. 



4. Periderm formation in stem of third year. Magnified 136 diameters, 



5. Transverse section of portion of stem in third year. The vessels indicated by 

 cross-hatching contain the dark brovi^n albuminous substance. Magnified 136 diameters. 



6. Gland in stem. Magnified 250 diameters. 



7. •* Intercellular'' gland of leaf. Magnified 250 diameters. 



The figures were all drawn with the aid of an Abbe camera, and the magnifica- 

 tions given above are | of that of the original drawings. 



