< 
Benepict: Cart FREDERIK ALBERT CHRISTENSEN 57 
On the American species of —— sect. Bolbitis. 
Bot. Tidsskr. 26: 283-297. f. 1-8. 30 N 1904 
3. A new Elaphoglossum from caer Bot. Tidsskr. 26: 
299, 300. 30 N 1904. | 
4. Index Filicum i-lx+1-744. 1905. 
5. Revision of the American species of Dryopteris ofthe 
group of D. opposita. 1-90. 1907. (Kgl. Danske S 
= Tidensk. Selsk. Skrifter VIL. 4: 247-386.) 
_ 6. Dryopteris nova brasiliensis. Repert. oP Nov. 6: 380, . 
ae 381. 1Mrl eS 
-4. On Stigmatopteris a new _— of ferns eS a 
Bot. wien bide: 
The American eats of the group DY) 
contained i in the U. 8. — 
berg in temperate e South ne 
1-82. pl. 1. f. 1-4. 98 1910. 
. Am. F 
