TAB. XVIII. 
AsPLENIUM (DiPLAZIUM) CKASSIDENSy Fm. 
Stipite stamineo-fusco spitbamaso nudo^ fronde snbpedali 
coriaceo-membranacea atro-virldi subtus pallidiore opaca 
pinnata, pinnis paucis remotis 10-11 brevi-petiolatis paten- 
tibus remotis 4-uncialibus inaBquilaterali-ovato-lanceolatis 
basi oblique attenuato-cuneatis subito acuminatis subgrosse 
serratis prtecipue supra medium, supremis subdecurrenti» 
sessilibus ultimis tribus in unica hastiformi confluentibus, 
venis approximatis furcatis v. bis-terve dichotomis magis 
ramosis in pinna terminal^ soris obliquis parallelis aequalibus 
e costa ad marginem attingentibus non raro prascipue ad 
apicem frondis diplazioideis, involucris fuscis. 
Diplazium crassidens, Fie^ Sme, Mem, p, 82. Metten, Asplen, 
p, 15L 
Hab. N. Grenada, Paramos of Ocafiaj elev. 10,000 feetj 
Schlim^ n, 393. 
A peculiar looking species, with a costa dividing the pinna 
into 2 unequal portions, the upper half being the broadest. It 
is remarkable for the great regularity and length of the 
brown sori, extending, as they do, from the costa to the 
margin. 
Fig, 1. Terminal fertile pinna seen from beneath : — nat, size, 
f, 2. Portion of the same with sori : — magnified. 
Cent. 2. t. 18. 
