SUB-SECTION LASTREA. 
141 
Fronds dividing into two or three at the base of the stem, and each 
again dividing 2 or 3 inches higher, and becoming very ramose 
3 or 4 inches below the apex, making the frond as broad as it is long. 
The tips of the pinnae crested. Length, 1 foot 6 inches. 
32. ramulosissimum, Wollaston. Raised from spores in 1865 
by Mr. Sim, of Foots Cray. Avery curious dwarf variety. More 
than half the length of the frond consists of its naked stem, above 
which it is a diminutive grandiceps. Length, 3J inches. 
33. recurvum, Moore. Found in 1857, near Doncaster, by Mr. 
S. Appleby. Recurved. Length, 18 inches. 
*34. revolvens, Wollaston. Found at Troutbeck Bridge, West- 
moreland, by Mr. F. Clowes. A remarkable, thin-textured variety. 
Owing to the pinnae curling round the back of the frond, the width 
is only 2 inches. Length, 1 foot. 
35. rotundatum, Phillips. Found at Ligoniel by Mr. W. H. 
Phillips. Pinnules rounded and denticulate. Very distinct. 18x4 
inches. 
36. Sangii, Lowe (crispa-cristata-angustata, Sang). A distinct, 
dwarf, very narrow, crisp, and well-crested variety, with thick stem. 
Length, 6 inches. 
37. Schofieldii, Moore (ramulosa, Wollaston). Found in 1855, 
at Derby, by Mr. J. Schofield, of Rochdale. The stem divides 
into two foliose fronds, and these again divide at the tips. Length, 
2 to 3 inches. Var. ramulosissimum was raised from this variety. 
38. Stableri, Moore. Raised by Mr. Stabler, of Levens. Not 
unlike Pinderi, but in every way larger. 
39. Willsii, Lowe. Found in South Devon by the late Mr. Wills. 
A grand polydactylous fern. 
40. Wilsoni, Lwwe (cristata Wilsoni, Wollaston). Found in 
1871, in Langdale, by Mr. J. A. Wilson. Distinct from all other 
crested forms, having golden-coloured, pendulous pinnules. 
ALLIED MALE FERN. 
Nephrodium propinquum. — Lowe. 
(LASTREA PROPINQUA.— Wollaston.) 
A perfectly deciduous species, with fronds and pinnae concave ; 
pinnules biserrate. Indusium embracing spore-cases, persistent, 
and entire. Fronds dull pale-green, and of a soft texture. This 
fern approaches nearer to N. paleaceum. than to N. Filix-mas , and 
may eventually prove to be a mountain form of the former. 
Varieties. 
1. abbreviatum, Babington. Considered the normal form of 
the species. It has been found on Snowdon by the Rev. J. M. 
Chanter, in Teesdale by Mr. Backhouse, on Cronkley Fell by my- 
self, Ingleborough by the Rev. G. Pinder, Coniston by Miss Beever, 
in Westmoreland by Mr. G. B. Wollaston, Glen Isla by Mr. J. 
Backhouse, on Ben Lawers by Mr. P. Neill Fraser and myself, at 
