THE BROAD PRICKLY-TOOTHED BUCKLER FERN. 
an ovate outline broadest at the base, the stipes forming nearly half the entire heigl 
t Both the stipes 
and rachis, as well as the under side of the veins, 
е sparingly clothed with short-stalked glands. The 
stipes is clothed thickly at the base, more sparin 
ly upwards, with lanceolate seales having the usual 
dark central mark. The lowest pinnae are unequal-sided, but the rest are nearly equal. The fronds are 
bipinnate, but the pinnules are de 
ent, more or less convex, the larger ones somewhat lobed, with 
serrated lobes, the rest merely serrate with spinulose teeth. ‘The sori are most copious in the upper part 
of the frond, and form a line on each side the midvein of the pinnules nearer the rib than the margin ; 
the 
are rather small, formed of roundish obovate spore-cases, which are almost black when fresh, and 
are covered by а small, delicate, somewhat glandular-margined indusium, which soon shrivels and 
becomes concealed among the spore-eases 
Miss Boover’s, or the Thicket Prickl 
toothed Buckler Fern—L. DILATATA DUNETORUN—(PLATR 
XXV.) is a dwarf or dwarfish 
orm, with broad ovate, or clongate-triangula 
or sometimes, deltoid fronds, 
remarkable for their 
ndular surface, and their large abundant sori produced freely on plants of ve 
immature age, 
"This form of the plant, which appears to us entitled to specific distinction, occurs under 
several modifications, some of which have been referred to the var. collina, with which, however, they 
do not agree. 
Of these modifications, one discovered in the Lake district by Miss Beover, to whom we 
aro indebted for specimens and plants, is the most marked with which we are acquainted, and like the 
rest, sufficiently accords with the imperfect specimens of Sir J. E. Smith's Aspidium dumetorum, to be 
found in his herbarium, This plant has elongate-triangular-ovate fronds growing about а foot high, 
and very glandular, especially on the stipes, rachis, and lower surface of the veins ; they are bipinnate, 
the pinnas concave and bluntish; the pinnules broad oblong, or oblong. 
р p 
ovate, convex, eri 
у, and 
coarsely toothed, the teeth broad. 
acuminately tipped by a small bristle. The stipes is sparingly 
clothed with lanceolate scales of variable width, and of a pale-brown colour, scarcely at all darker in 
the centre, and having their margin fimbriate. The sori are lar 
с, distinct, produced over the whole 
under surface, and covered by indusia, which are prominently fringe 
d with stalked glands, Young 
plants of this form, but a few months old, and three or four inches high, bear fronds which are 
abundantly fertile, With this we associate 
following, which agree in the pale-coloured, broad 
Tance-shaped, sparingly fimbriated scales of the stipes and crown, in the dwarf habit, the subtriangular 
fronds, in the glanduloso surface, and th 
large distinct sori:—(1) a Fern found at Festiniog 
by Dr. Allchin, somewhat larger in growth under cultivation, less concave in the pinnæ, and therefore 
fader, found by Mr. J. R. Cobb; 
(3) Dr. Deakin’s Z. maculata, found on Goatfell, Arran, which is also a dwarf glandular form of the species, 
less crispy 2) another similar, from the hills above Rha 
with a more ovate outline of frond ; (4) a similar plant, which we gathered at Tarbet, in Glen Croe, 
and on the coast of Arran; (5) a form having the same general characteristics, found by the 
Rey. J. М. Chanter, in the vicinity of Ilfracombe in Devonshire ; and (6) a similar form found in the 
Isle of Man, by Dr. Allchin. ‘These all differ 
from that first described in little but the absence of the 
crispy aspect of the pinnules, which has been already mentioned; and do not differ among themselves 
more than the forms of many other Ferns. 
ickly-toothed Buckler Fe 
Mr. Pinder's, or the Hill P 
n—LASTHEA DILATATA сомлха—(Ртдтв XXVI, 
Am) was first brought 
о notice by the Rev. G. Pinder, to whom we are indebted for specimens and 
much information concerning it, It is a remarka 
neat-looking form of the species, having sometimes 
an ovate outline of frond, attenuately elongated at the apex, but also occurring in а more elongated, 
п oblong-lanceolate or ovate-lanceolate form. The fronds are dark-green, one to two feet high, 
smooth 
or sparingly glandular, bipinnate. The stipes is variable in length, both in wild specimens, 
some of which are found beneath masses of rock, and under cultivation ; from one-half to one-third 
the length of the fronds, 
ven above, tinged with dark purple-brown at the base, scaly, with entin 
lanceolate dark-brown scales, which have а conspicuous darker central mai 
; the scales at the base 
of the stipes, where th i numerous, are narrow, and have a N 
subulate point ; hig 
er up 
