17 
folia disticha siccitate alutacea, sterilium petiolus 13—14" 
longus, bisulcatus, paleis ferrugineis, ovatis, acutis, dense 
laciniatis, longissime subulatis haud sparse obsitus, infra hinc 
inde glandulosus; lamina 9—12" longa, 1" lata, lanceolata, 
utrinque acuminata, paleis ferrugineis, ovatis, valde dilaceratis 
supra sparse infra densius obsita; nervi 1 — 2!" distantes 
subimmersi, liberi rarissime hinc inde arcu intramarginali 
conjuncti, simplices vel bifurcati vel trifurcati. Folia fertilia 
desunt. 
Africa orientalis tropica. In Kilma ad radices montis Kilimandjaro regionis 
Dsehagga. 3—4000 ped. leg. Kersten. 1864. no. 5. 
Platycerium Dsv. 
Platycerium alcicorne Dsv. 
Dsv. Arin. Soc. Linn. VI. 213. Hk. sp. V. 282. 
Africa orientalis tropica. Prope Mombas. Exeunte Januario leg. Kersten. 
no. 6. 
AdiantiJiu L. Sw. 
Adiantum lunulatum Burm. 
Burm. flor. ind. 235. Sw. syn. 121. W. sp. V. 430. Hk. 
spec. II. 11. Ettingh. farn. 85. t. 46. f. 6. 7. Bedd. f. South. 
Ind. 1. t. 1. 
Insula Nossi-beh. ad Madagascariam. Mart. Apr. 1864. leg. Kersten. no. 7. 
Adiantum caudatum. L. 7928. 
Sw. syn. 122. W. sp. V. 431. Hk. sp. II. 13. 
var. hirsutum Mett. msc. 
Adiantum hirsutum Bory it. I. 198. W. sp. V. 432. Klf. en. 
201 . Kze. Linn. 24. 273. 
Insulae Sechellae. In collinis, Aug. 1863. leg. Kersten. no. 9. — Ins. Co- 
morae. Prope Kitandam insulae Angasiliae. VII. Majo 1864. leg. Kersten. 
no. 8. 
Adiantum hispidulum Sw. 
Sw. Schrad. journ. 1800. II. 82. syn. 124. 321. W. sp. V. 
444. B. Br. prodr. 155. Hk. sp. II. 31. Mett. fil. h. Lips. 
47. Moore ind. 28. Ettingh. farn. 84. t. 44. f. 1. 3. 16. 
Ins. Comorae. In colle meridiem versus prope Kitanda-Mdjini insulae Anga¬ 
siliae. VIII. Majo 1864. leg. Kersten. no. 10. 
Lindsaya Dryand. 
Lindsaya Pervillei Mett. 
Mett. in hb. propr. Berol. Paris. Boiss. — Linds. Kirkii. Hb. 
Hook. 
2 
