IX. ASPLENIUM. 155 
is rather a handsome fern. The soil should be well in- 
termixed with porous material to secure perfect drainage. 
It may be propagated by division, when more than one 
crown is formed. 
3. Asplenlum Adiantum-nigrum, Linnaeus. 
Black Spleenwort. Fronds deltoid or ovate, bi-tri-piunate ; 
piniue triangular ; pinnules ovate or ovate-lanceolate in- 
ciso-pinnatiiid, sharply toothed ; sori linear-elongate, dis- 
tant from the margin. 
ASPLEMUM ADIANTUM-MGRUM, Linnaeus : Sm. Eng. Fl.iv., 297: 
En;,'. Hot. IWSO: Hook and Arn, Fl. 673: Bab. Man. 414: Florigr. 
lirit. iv., 64: Franc. 49, Ncwui. 255. ASPLEMUM MGRUM, Bern- 
Imrdi. TARACHIA ADIANTUM-NIGBUM, Presl. PUILLITU LANCI- 
FOLIA, Moench. 
ft. obtuxum ; fronds smaller, less divided, the divisions 
more ovate obtuse ; rachis winged. 
AspLmiuM ADIANTUM-NIGBUM var. OBTUSUM, Newra. 258. 
ASPLEMUM OBTUSUM, Willdeuow. 
f[. acutum ; fronds tripinnate throughout ; ultimate 
pinnules cut into linear sharply-toothed segments. 
ASPLENIUM ADIANTUM-NIGRUM var. ACUTUM, Newm. 259. As- 
PLENIUM ACUTUM, Hory. AsPLEKiLM ViKGiLii, Bory. TARACUIA 
ACUTAi Pres). 
D. variegatum ; fronds distinctly variegated with 
yellowish white. 
ASPLENIUM ADI ANTCM-NIGBUM var. VARIEGATUM. Moore in! ed. 
The Black Spleenwort has a tufted caudex, furnished 
with wiry roots, and bristly scales, a few of which latter 
are scattered on the base of the stipes. The fronds, which 
are adherent to the caudex, and terminal, vary much in 
size ; being sometimes not more than three or four inches 
