oe 
ee 
TE Se = MN ee ee ey: oe ea eS FS ee, nee Se er ee 
93 
Brazil: Brazilian Guiana, Huser nr. 751, 1064, Alto Amazonas, Martius nr. 321 (B, RB), Para, STiper 
nr. 1140 (B), Bahia, BLANcHET nr. 2485 (B, CC, RB), Luscunats nr. 114 (B), Matto Grosso, Grillos, 
LinpMAN nr. A. 3251 (Rg, S, U). Iheos Rrepex (Rg, RB): without locality Giaziou nr. 10187 (H), 
15757 (B, H) 
var. dicksonioides (Fée). 
Syn. Aspidium dicksonioides Fée, Cr. vase. Brés. 1: 148 t. 49 f. 1. 1869. 
The most divided form, apparently very different from the more common 
var. funesta, but it is connected with it by some of the larger forms mentioned 
above. It is fully quadripinnate below, quadripinnatifid at the middle, the free 
tertiary pinnule of a middle pinne being again pinnatifid or lobed on the anterior 
side. Underside rather glandular by glistening, sessile glands. Such glands are 
- occasionally found in the var. funesta but they are always few. Sori near the 
margin. — This variety is a parallel to the African Nephrodium variabile Hook. sp. 
4: 135, but I cannot follow Hooker in considering it identical with it; the position 
of the sori is different and there are other differences. 
Brazil: Amazonas, San Gabriel, Spruce nr. 2129 (Kew. — FéeE by a mistake quotes Giaziov nr. 2129). 
French Guiana, Leprieur nr. 8 (B, W — less glandular). 
Subgenus X. Parapolystichum Keyserling emend. C. Chr. 
Polystichum § Parapolystichum Keyserling, Pol. Cyath. Herb. Bung. 11, 45. 1873. 
Rhizome short-creeping; lamina often large, deltoid, tripinnatifid to quadri- 
pinnate, thin or chartaceous, catadromous in its secondary divisions, variable in 
the tertiary, but ultimate pinnules more or less polystichoid in habit, i. e. their 
posterior basal segment being somewhat reduced with the lower base cuneate and 
decurrent, forming a narrow wing to the costa, the anterior basal segment enlarged ; 
margins acutely toothed. Scales of lamina few or none, those of the rhizome thin, 
often large. Simple, whitish hairs absent but coste and costules (D. acufa excepted) 
shortly tomentose with articulated hairs similar to those of Cfenitis, and longer sep- 
tate hairs may be found on the ribs beneath; underside, especially on the ribs, 
furnished with few or many red or yellow, cylindrical, glandular hairs which often 
resemble certain eggs of insects. Sori small, indusiate or not; sporangia small, on . 
long pedicels which bear a stalked capitate or oblong gland. Spores coarsely verru- 
cose. — The rachis often produces at the axil of an upper pinne a scaly bud from 
which small leaves grow out; sometimes buds are produced on the midribs of 
the pinne. 
This subgenus has the articulated hairs in common with Ctenitis, the more or 
less polystichoid habit in common with Polystichopsis, but it cannot naturally be united 
with either of these subgenera, at least not with Cienitis, from which it differs in 
