Filices Deckenianae, 
1. Polypodiaceae R. Br. 
Acrostichum L. 
Acrostichum hybridum Bory. 
Bory voy. III. 96. Sw. syn. f. 11. W. sp. V. 107. Fee 
Acrost. 40. t. 9. f. 4. gen. fil. 43. Hk. spec. V. 210. 
Ettingh. farn. 4. t. 4. f. 6. 
/?. Vulcani Leperv. in Fee Acrost. 41. t. 9. f. 3. Hk. spec. 
V. 211. 
Ins. Comorae. In insulae Angasiliae monte ignivomo circa stationem noctur¬ 
nam 6000 ped. et inter 6000 atque 9000 ped. Majo. 1864. leg. Kersten. 
no. 1. 2. 
Acrostichum splendens Bory. 
Bory in W. sp. V. 104. Fee Acrost. 60. t. 21. f. 2. gen. 
43. Hk. sp. V. 239 (partim). 
var. Angasiliensis. 
Differt a forma typica paleis rhizomatis nigricantibus, niti¬ 
dissimis, lanceolatis, longe acuminatis, sparse dentatis, den¬ 
tibus obtusis, brevissimis. 
Ins. Comorae. In monte ignivomo insulae Angasiliae 6000—9000 ped. Majo. 
1864. leg. Kersten. no. 3. 
Acrostichum viscosum Sw. 
Sw. syn. 10. 193. W. sp. V. 103. Fee Acrost. 45. Hk. sp. 
V. 220. Ettingh. farn. 3. t. 1. f. 15. t. 2. f. 1. 
var. salicifolium (Klf.) Klf. en. 58. 
Ins. Comorae. In insulae Angasiliae monte ignovomo 3600—6000 ped. Majo. 
1864. leg. Kersten. no. 4. 
Acrostichum Deckenii. 
Rhizoma repens paleis nigricantibus, nitidissimis, lanceolatis, 
acuminatis, laciniatis, laciniis longe subulatis dense vestitum; 
