Some botanical works of 



CARL CHRISTENSEN. 



Index Filicum. Hafniae (H. Hagerup). 1906. 



. Supplementum 1906 — 12. Hafniae (H. Hage- 

 rup). 1913. 



. Supplementum preliminaire pour les Annees 

 1913—16. Hafniae (H. Hagerup). 1917. 



Revision of the American species of Dryopteris of the group 

 of D. opposita. (Vid. Selsk. Skr. VII. 4). Kobenhavn 

 (Host & Son). 1907. 



A monograph of the genus Dryopteris. Part I. Ibid. VII. 



10. 1913. 



. Part II. Ibid. VIII. 

 6. 1920. 



Taxonomic fern-studies I — II. (Dansk Bot. Arkiv 6 no. 3). 

 Kobenhavn (H. Hagerup). 1929. 



The Pteridophyta of Madagascar. 80 plates. (Dansk Bot. Ar- 

 kiv 7). Kobenhavn H. Hagerup). 1932. 



Den danske botaniske Litteratur 1880 — 1911. Kobenhavn (H. 

 Hagerup). 1913. 



Den danske Botaniks Historie. 2 vols. Kobenhavn (H. Hage- 



rup). 1924—26. 



iEgypt 



Arabien 1761 — 63 og hans botaniske Arbejder og Sam- 

 linger. Kobenhavn (H. Hagerup). 1918. 



£ to Pehr Forsskal: Flora aegyptiaco-arabica 1775 with a 

 revision of Herbarium Forssk&lei contained in the Bo- 

 tanical Museum of Copenhagen. (Dansk Bot. Arkiv 4 

 no. 3). Kobenhavn (H. Hagerup). 1922. 



