FILICES PURDOMIANAE 
CarL CHRISTENSEN 
(The ferns collected by Mr. Witt1am Purpow in r910 in Shensi during 
the Arnold Arboretum expedition to northern China have been placed in the 
hands of Dr. Cart. CHRISTENSEN of Copenhagen. His report upon them is 
found in the following paper.—C, S. SARGENT, Arnold Arboretum.) 
Alphabetical list of species 
The species marked by an asterisk are probably new to the 
province of Shensi. 
1. Adiantum aristatum Christ.—Tai-pei-shan, no. 79. 
2. A. erythrochlamys Diels.—Tai-pei-shan, no. 78. 
3. A. pedatum L.—Tai-pei-shan, nos. 71, 80. 
4. Asplenium adiantum nigrum L.—No. 74. 
5. A. Sarelii Hook.—Nos. 73, 76. 
6. A. varians Hook. et Grev.—No. hee 
7- A. trichomanes L.—Tai-pei-shan, no. 77. 
8. *Athyrium acrostichoides (Sw.) Diels—No. 409. 
9. A. Biondii Christ.—Tai-pei-shan, no. 43. 
10. A. crenatum (Sommerf.) Rupr.—Northern Chili, no. 64. 
11a. A. filix-femina (L.) Roth—No. 48. 
1b. A. filix-femina (L.) Roth var. multidentatum (Déll).— 
No. 62. 
12. *A. Henryi (Bak.) Diels —Tai-pei-shan, no. 42. 
13. “A. mongolicum (Franch.) Diels var. Purdomii, var. nov.— 
Nos. 13, 20, 
14. *A. Sargentii, sp. nov.—Tai-pei-shan, no. 10. 
15. A. spinulosum (Maxim.) Milde.—Tai-pei-shan, nos. 57, 
58, 60. 
16. (2) A. subsimile Christ.—No. 50. 
17. Blechnum eburneum Christ —WILSON no. 4723. 
18. Cheilanthes argentea (Christ) Hook.—WILSoN no. 4724. 
19. C. lanceolata, sp. nov.—Tai-pei-shan, nos. 24, 25- 
20. Cheilanthes sp.—No. 15. 
331] [Botanical Gazette, vol. 56 
