1214: filices (Cairuthers). [Xephrodium 
Princes Island. — By springs on shady rocks near the sea ; Sept. 
1853. No. 12. Gregarious, but in few woody places about 1500 ft. 
between the city and Monte Caffe ; in fr. Dec. 1860. No. 62. 
PUNGO ANDONGO. — Sparsely in shady places of Mata de Pungo ; in 
fr. middle of March 1857. No. 102 
GrOLTJNGO Alto. — Very abundant at the falls of the river Coango in 
shady woods. Specimens with round tubercles on the main rachis on 
the upper or under surface of the frond are intermixed with the usual 
forms : in fr. Aug. 1855. No. 103. and 103''. 
A beautiful fern with csespitose stipes and fronds 3 and 4 ft. high. 
The stipes and rachises in all the specimens collected in Golungo Alto 
were without glandulose hairs, while the specimens in No. G2 have them. 
Two young plants belonging probably to Nephrodium were in Dr. 
Welwitsch's Herb. : one. No. 131, from the banks of the river Casabala 
Sobato de Bumba, July 1856, the other, No. 184, found near the cataract 
of Ferrao da Sola ; April 1860. 
17. NEPHR0LEPIS Schott, Gen. Fil. (1834). 
1. N. tuberosa Presl, Tent. Pter. p. 79 (1836). 
Aspidium tuberosum Bory in Willd. Sp. PI. v. p. 234 (1810). 
SlERRA Leone. — Frequent on old shady walls in Freetown, growing 
with various Hepatics and species of Scytonerna : Sept. 1853. No. 8- 
Welwitsch notes that the sori in his specimens are on the margin of 
the pinnae. 
2. N. exaltata Schott, Gen Fil. (1834). 
Golungo Alto. — Not infrequent on the old trunks of Elects 
guineensis and other trees between Bango and Sange ; in fr. Jan. and 
May 1855, and June 1856. No. 144. 
Pungo Andongo. — On decaying bare trunks of Melia Bombolo 
Welw. in the presidium itself ; Dec. 1856. No. 145. 
These plants are always tuberifous ; the tubers are ellipsoid, and 
contain a dense subflavescent flesh. Welwitsch considered the speci- 
mens to be only a variety of N. tuberosa Presl. 
3. N. biserrata Schott, Gen. Fil. (1834). 
JV. acuta Presl, Tent. Pter. p. 79 (1836). 
Pkince's Island. — In dense humid woods, frequent. Full grown 
plants 6 to 7 ft. high ; Sept. 1853. No. 23. 
Golungo Alto. — Very common in the shady woods of Quilombo 
Quiacatubia, about 2000 ft. altitude ; in fr. Jan. 1855. In the 
primitive forests on p;dms, growing among the bases of the petioles, 
in the Serra do Alto Queta ; in fr. June 1856. No. 108. 
Var. /3, diplotis Welw. The base of the pinnae equally auriculate 
on both sides. 
Prince's Island.— From 100 to 500 ft. altitude; Sept. 1853. 
No. 236. 
4. N. trichomanoides J. Sm. in Hk. Journ. Bot. iii. p. 413 
(1841); in Presl, Epim. Bot. p. 44 (with descr.) (1849). 
iV. repens Brack. U.S. Expl. Exped., Botany p. 209 (1854). 
V. ramosa T. Moore, Ind. Fil. p. 102 (1858). .V. obliterata Hook 
(non Sephrodium obliteratum It. Br.) Sp. Fil. iv. p. 154 (1862). 
St. Thomas. — Climbing on old living trunks in woods, to about 
