oe sgn 
104 BOTANICAL GAZETTE [AUGUST 
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LITERATURE CITED 
. BRONGNIART, A., Recherches sur l’organization des tiges des Cycadées. 
Ann. Sci. Nat. Bot. I. 16:389-402. pls. 20-22. 182 
Q. 
. Von Mout, Huco, Ueber den Bau des Cycadeenstammes. Abhandl. K. 
Acad. Miinchen 1:397-424. 1832 
. Metrentvus, G. H., Beitrige zur Anatomie der Cycadeen. Abh. K. Sachs. 
Gesell. Wiss. '7:565-608. pls. 1-5. 1861. 
. Sotms-Lausacu, H., Die Sprossfolge der Stangeria und der iibrigen Cyca- 
890. 
deen. Bot. Zeit. 48:177-187, 193-199, 209-215, 225-230. pl. 2. 1890 
STRASBURGER, EDUARD, Histologische Beitrage III. 1891. 
. WorsvELL, W. C., Anatomy of stems of Macrozamia compared with that 
of other genera of Cycadeae. Annals of Botany 10:601-620. pls. 27, 28. 
1896. 
age Cuas. J., Dioon spinulosum. Bot. GAZETTE 48:401-413. 
* 
Sigs. 1-7: 
8. SMITH, eile GRraAcE, Morphology of the trunk and development of the 
microsporangium of cycads. Bor. GAZETTE 43:187-204. pl. 10. 1907. 
E THUR J., On the origin of the broad ray in Quercus. Bot. 
Gaseere 49:161-167. pis. 8, 9. 1910. 
