[ 771 ] 
Maidenhair r the whole Surface of the Leaf on the 
Infide feems covered, fo the Seeds guard one another 
in fome meafure, though in thefe I find, after the 
Seed velfels are {hook off, fmall Membranes here- 
and-there on the Surface, a little curled, looking as 
if they had been raifed with the Edge of a fharp Pen- 
knife, from the Skin of the Leaf, not altogether 
unlike the Pieces, of Skin we are wont to raife in 
trying a Penknife on ones Hand. 
The Plant which I have attempted a Figure of at 
B, Tab. IT. with its Seed-velfels, &c. is the Filix mas 
‘ Dodontei ; on the Infide of the Leaves of which are 
ufually feen feveral Spots placed in a regular manner, 
of a Light-brown or Rulfet. In this Plant the prin- 
cipal Part of thefe Spots is the Fungus before-men- 
tioned, around which the Seed-velfels are inferted. 
The Seed-velfels confift of a Stalk, by which they 
are inferted into the Leaf, as c c, of a fpringy ribbed 
Chord ee , having a great Number of annular Ribs, 
exa&ly refembling the annular Cartilages in the 
Afpera Arterial and I know nothing in Nature fo 
aptly refembling this Chord, as the AJ'pera Arteria 
of a fmall Bird, as a Robin or Nightingale, &c. 
This Chord incircles the globular membranaceous 
Pod, wherein the Seed lies, adhering to it, and 
dividing it into Two Hemifpheres. The Pod ff is, 
in Appearance, compofed of a fine whitifh Mem- 
brane, fomewhat like that which lines the Infide of 
a Pca-lhcll. The Seeds, Fig. 3. k, are irregular in 
Shape, and in the Surface ol them, a little refembling 
a fort of Net- work, which I have endeavoured, in my 
rude Manner, to mimic. 
In 
