DESCRIPTIONS OF THE SPECIES 
213 
109. Pellaea Swynnertoniana Sim. (New species.) 1 
Plate 101. Nat. size. B Margin of frond, x 2. 
Frond rigid, two-pinnate, deltoid, six to eight inches long, 
six inches wide, on a stout stipe ; upper pinnae simple, lower 
pinnae three-foliate, each pinnule on a half to one inch petiole; 
pinnules ivy-leaved, three to five lobed from a cordate base, 
one to two inches wide, three-quarter to one and a half inches 
long, coriaceous, glabrous, very distinctly flabellately veined, 
and with wide indusium. Stipe, rachis and petioles stout, 
wiry, glabrous, black and shining. Resembles P. hastata 
(Thbg) Pr., but is much larger, less divided and less glaucous. 
Chirinda Forest, Rhodesia (Swynnerton, 850). 
no. Pellaea pteroides (Linn.) Prantl. (The Myrtle 
Fern.) 
Plate 103. Nat. size. 
Crown procumbent, paleaceous. Frond coriaceous, three- 
pinnate, triangular, nine to fifteen inches broad, twelve to 
eighteen inches long, on a naked, shining, nearly black stipe 
nine to twelve inches long. Lower pinnae largest, deltoid, 
simply pinnate toward the point, two-pinnate below. Other 
pinnae mostly simply pinnate, and decreasing to the simply 
pinnate point of the frond. Pinnules shortly stalked, glabrous, 
oblong, rounded or cordate at the base, rounded at the apex, 
a half to three-quarter inch long, two to five lines broad, 
crenate. Rachis shining, but woolly at the axils, or at first 
all along. Sori small, roundish, or crescent-shaped, on notches 
1 109. Pellaea Swynnertoniana Sim. (Species nova.) 
Tab. 101. Mag. nat. b Folii margo x 2. 
Folia rigida, bipinnata, deltoidea, 6 — 8" longa, 6" lata, stipiti robusto imposita ; 
pinnae superiores simplices, inferiores trifoliatae, pinnulis singulis petiolo \ — 1" 
longo insidentibus ; pinnulae hedero-foliatae, tri-quinque-lobatae, e basi cordata, 
1 — 2" latae, f — ij" longae, coriaceae, glabrae; nervi manifestissime flabellati; 
indusium latum; stipes, rhachis, petioli robusti, rigiduli, glabri, nigri, nitidi. 
Similis P. hastatae (Thbg) Pr., multo tamen maior, minus divisa minusque 
glauca. 
Rhodesia, in Silva Chirinda (Swynnerton, 850). 
