COMMON PRICKLY SHIELD FERN. 
THE 
sh 
an considered ns varieios, and one at least of them (оойт) eee 
authors. 
1. Zonclátidivides : this is usually cons o young state of the form 
bri cons eerta {uot ta төзіп corre пара ver old pnt М ма 
A on by Ms, Donne, havo been found родова tho Ionchiiform fronda: Tt would 
ho debilitated and partially Tobatum, whether caused by 
шу other depressing influence, Tt is certainly not permanently distinct from И 
able with it, for cultivated plants of Zonehitidinides may be murtur 
propor may be starved into louchitidioides. Т 1 is dwarf, simply 
much resembling P. Lonehitis, but less spiny, not іші 
become lobed. - Tt is a fertile state 
2 lobatum : this variety, wh the fully developed condition of the previ 
lance-shiaped fronds, one to two feet long, and subbipinnate i few only o 
the anterior basal one ік always distinct, considerably enlarged, and strongly 
Between it and th 
et and 
either decurrent or confluent, and not auriclel, 
broader, and in which most of the pinnules should be di 
сап be developed into aenteatwn by culture, but on the contrary, that it is à perman 
various gradations exist, Tt is a common plant 
з. multifidum : this Mr. Wollaston describes as having the apex of the frond mu 
occasionally dichotomous. 
another of Mr. Wollaston's varieties; it produces bulbils in ti 
pinne 
5. argutum : this has a broad lanceolate frond, with distinct pinnules as in 
diers in the form of the pinnules, which are narrowed and elongated ; they termin 
point, and havo long sp 
information that it had been gathered in some part of Buckinghamshire 
The variety mentioned in the 21 ish Ferns (2 ed, p. 90 
п the Royal Botanie Garden at Kew, cannot raced as a British plant, 
itted, Tt appears from specimens in Sir W and Mr. Howard's her 
American form of the species; and it is therefore not improbable that th 
1 into lobatum proper ; and k 
мей out 
rather seem to b 
im, but interchange 
pinnate, often very 
deve 
species, which is 
js to be found every 
form called Zobutum 
nent variety of which 
ultfid, and the pinne 
the typal plant, and 
nes to the marginal teeth. T ven to us by Mr. Lloyd 
0) as being cultivated 
and is consequently 
baria, to be a North 
