soll 
344. Dryopteris villosa (L.) O. Ktze. Rev. Gen. 
Pl. 2: 814. 1891; C. Chr. Ind. 300. — Fig. 19. 
Syn. Polypodium villosam L. sp. 2: 1098. 1753. 
Aspidium villosum Sw. Schrad. Journ. 1800?: 39. 
1801; Syn. Fil. 56!; Schkuhr, Kr. Gew. 194 
t. 46 B. 
Nephrodium villosum Pr. Rel. Henk. 1: 38. 1825; 
Hook. sp. 4: 134 t. 264; Jenman, Bull. 
bot. Dept. Jam. 3: 114 et W. Ind. and 
Guiana Ferns 222, excl. varr. 
Type from Jamaica? — LINNAEUS quoted 
besides Pet. fil. 52 t. 4 f..10 and Sloane: jam. 23 
also PLumieR tab. 27; this plate illustrates a plant 
from Santo Domingo. I have seen specimens from 
both islands and they are rather alike. In the fol- 
lowing I describe the Jamaican form. 
Rhizome or caudex erect, up to 25 em thick and 
nearly one meter high, at last prostrate, together with 
the lower part of the stipes clothed with many lan- 
ceolate-linear, dark-brown, sometimes glossy-castaneous 
- scales, 2 cm long, 2 mm broad, which are toothe 
with short, subulate often retrorse teeth especially 
towards the hair-pointed apex. Stipes up to 1'/: m 
long, 1 cm thick, sulcate above, upwards laxly pale- 
aceous with large scales like rachis. Lamina deltoid, 
up to 2 m long and broad, chartaceous, dark-brown 
green, quadripinnatifid below, tripinnatifid at the 
middle. Basal pinnz the largest, 1 m or more long 
with the basiscopic side much produced, the basal 
pinnula reaching 50—70 cm in length, about opposite 
to the second acroscopic pinnula. Middle pinne oblong- 
acuminate, 40—60 cm long, shortly petiolate. Pinnules 
at nearly right angles to the costa, the lower ones 
Shortly stalked, oblong, often abruptly acuminate, 
10 cm long, 2'/2 cm. broad, the uppermost ones 
Shortly adnate at the posterior base, the larger ones 
incised to the midrib at the lower third. Tertiary 
segments or pinnules oblong, broadly obtuse, 3—4 mm 
broad, entire, crenate or of large specimens rather 
deeply lobed below the rounded, entire apex; lobes 
5—6 jugate, truncate. Veins of ultimate lobes once 
e 
7) a —— 
: Ss 
e x fA 2 a) fay 
* oo ; ' 4 not c 
33 VAs yey 2) t 
oS “y Vg) . S 
FL m™ 
ee 
SY 
GS Sie 
“ee 
ek 
‘4, 
Se 
> 
{ 
fh 
rf 
A 
} 
Fig. 19. D. villosa (L.) O. Ktze. Se- 
condary pinna, nat. size, and two 
tertiary pinnules, < 2. 
