TAB. XVIII- 



Asplenium (Diplazium) crassidens, Fee, 



Stipite stamineo-fusco spithamaeo nudo, fronde subpedali 

 coriaceo-membranacea atro-viridi subtus pallidiore opaca 

 pinnata, pinnis paucis remotis 10-11 brevi-petiolatis paten- 

 tibus remotis 4-uncialibus injequilaterali-ovato-lanceolatia 

 basi oblique attenuato-cuneatis subito aeuminatis subgrosse 

 serratis pnecipue supra medium, supremis subdecurrenti- 

 sessilibus ultimis tribus in unica hastiformi confluentibus, 

 venis approximatis furcatis v. bis-terve dichotomis magis 

 ramosis in pinna terminali, soris obliquis parallelis asqualibus 

 e costa ad marginem attingentibus non raro prsecipue ad 

 apicem frondis diplazioideis, involucris fuscis. 



Diplazium crassidens, Fee, 8me. M6m. p. 82. Metten. Asplen. 

 p. 151. 



Hab. N. Grenada, Paramos of Ocafia, 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. 



Cehi. 2. t, 18. 



