60 
HISTORY OF BRITISH FERNS. 
var. rhseticTim. — Pinnules narrow, distinct, linear, con- 
vex, lobed. 
mr. latifolium. — Pinnules broad ovate, crowded, irre- 
gularly lobed. 
mr. molle. — Pinnules oblong, flat, lobed, connected by 
wing of rachis. 
mr, marinum. — Fronds narrowed to tbe base, decum- 
bent, pinnules oblong, with simple marginal teeth, 
rachis winged. 
mr, multifidum. — Pinnm and frond tasselled at the 
extremities. Plate XL, upper figure. 
mr. crispum. — Dwarf, irregularly branched, with the 
ends tasselled. 
Genus 7. ASPLENIUM, Linnceus, 
1. A. septentrionale, Hull — Frond linear-lanceolate, two- 
three-cleft. Plate XII. fig. 3. 
2. A, germanicum, Weiss . — Fronds linear, alternately pin- 
nate, pinnae narrow wedge-shaped ; indusium entire. 
Plate XIII. fig. 3. 
3. A. Ruta-muraria, Linnoem . — Fronds bipinnate, pinnules 
wedge-shaped at the base ; indusium jagged. Plate 
XIII. fig. 1. 
