TAB. XVIII. 
Asplenium (Diplazium) CRASSIDENS, Fee. 
Stipite stamineo-fusco spithammo nudo, fronde subpedall 
coriaceo-membranacea atro-viridi subtus pallidioie opaca 
pinnata, pinnis panels remotis 10-11 brevi-petiolatis paten- 
tibus remotis 4-uncialibus insequilaterali-ovato-lanceolatis 
basi oblique attenuato-cuneatis subito acuminatis subgrosse 
serratis pracipue supra medium, supremis subdecurrenti- 
sessilibus ultimis tribus in unica hastiformi confluentibus, 
venis approximate furcatis v. bis-terve dichotomis magis 
ramosis in pinna terminali, soris obliquis paiallelis asqualibus 
e costa ad marginem attingentibus non raro praecipue ad 
apicem frondis diplazioideis, involucris fuscis. 
Diplazium crassidens, Fee, 8 me. Mem . p. 82. Metten. Asplen. 
p. 151. 
Hab. N. Grenada, Paramos of Ocana, elev. 10,000 feet, 
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. 
Cist. 2. t. 18. 
