390 
FILICES. 
Tribe V. Adiantarite. 
11. Blechnum Linn. 
1. B. boreale (Sw.) ; barren fronds pectinate- pinnatifid with, 
broadly-linear rather obtuse pinnae, fertile frond pinnate pinnae 
linear acute. — E. B. 1159- Lomaria Spicant Newm. 11. — Each 
lateral nerve of the fertile pinnae extending half-way to the margin 
and then turning at right angles and proceeding up the pinna 
until it reaches the next nerve. Thecas attached in a continuous 
row to the longitudinal portions of the combined lateral nerves. 
This appears to be rather a Blechnum than a Lomaria. — Stony 
and heathy places. P. VII. 
12. Pteris Linn. 
1. P. aquilina (L.); fronds tripartite, branches bipinnate, pin- 
nules linear-lanceolate the lower ones pinnatifid, segments oblong 
obtuse. — E.B. 1679. Newm. 13.— Fronds annual, 1 — 5 feet high, 
very much divided with spreading branches. A transverse sec- 
tion of the stipes presents a figure resembling the imperial eagle. 
— Woods and heaths. P. VII. Brakes or Bracken. 
13. Adiantum Linn. 
1. A. Capillus- Veneris (L.) ; frond bipinnate, pinnae alternate 
roundish-wedgeshaped lobed thin, lobes of the fertile pinnae ter- 
minated by a transversely linear-oblong sorus, sterile lobes 
serrated. — E. B. 1564. Newm,. 9- — Rhizoma blackish, shaggy. 
Fronds 6 — 12 in. high. Stipes and rachis slender, nearly black. 
Pinnae not jointed to the partial stalks. — Damp rocks near the 
sea. P. V. — IX. Maiden-hair. 
Subor.II. Hymenophyllacece. Tr.VI. Hymenophyllece. 
14. Trichomanes Linn. 
1. T. speciosum (Willd.) ; fronds 3 or 4 times pinnatifid gla- 
brous, segments uniform linear, involucres solitary in the axils 
of the upper segments, seta at first included ultimately very pro- 
minent. — E. B. 1417- Newm. 89. — The frond in fact consists of 
hard wiry branched ribs each furnished throughout with a rather 
membranous wing. Rhizoma black, downy, very long. Fronds 
rather triangular, very much divided, 4 — 8 in. long. — In the 
name of this plant I have adopted the views of Mr. Newman in 
his beautiful Hist, of Brit. Ferns, in which he was supported by 
the opinion of my lamented friend Prof. Don. — Very damp shady 
places. Extremely rare. Turk waterfall, &c, Killarney. Glen- 
dine, Youghal. County Wicklow. P. IX. X. I. 
