^8. ASPLENIUM. § 3. Et-ASPLENltM. 44'? 



^. Son at length confluent. (25a) A. trichomanes. 



*.*. Sari not confluent. (236) A. exiguuoi. 



$.$. Fronds broader, 2—4 c.M. broad when fully developed. 



X. Stipe and rachis naked. (24) A. normale 



X.X. Stipe and rachis densely fibrillose. (25) A subaveniurii. 

 . h.b. Pinnae linear or linear-oblong, acute or acuminate, rarely obtuse, more 

 than 2 c.M. long in the fully developed plants. 

 c. Pinnae ± equally cuneate or truncate on both sides at the base. 

 d. Rachis naked. 



e. Pinnae few, not more than + 5 on each side. 



5)t. Pinnae cuneate at the base. (26) A. salignum. 



*.:tc. Pinnae cordate at the base. (27) A. diversifolium. 

 e.e. Pinnae 6 or more on each si le. 



f. Texture + herbaceous or membranaceous. 

 g. Pinnae not deeply toothed. 



h. Sori few, distant. (28) A. Labillardierii. 

 ft.b. Son numerous, close. (29) A. remotum. 

 ff.g. Pinnae deeply toothed. (30) A. subaqualile. 

 f.f. Texture + coriaceous. 



X. Rachis narrowly winged in the upper part. 



(31) A. sumatrarium. 

 X.X. Rachis not winded. (32) A. vulcanicum. 



d.d. Rachis scaly, chaffy or flbrillose. 



$. Pinnae broadly adnate to the rachis. Rachis^ fibrillose. 



(33) A. fuliginosum. 

 $.$. Pinnae not or narrowly adnate to the rachis. Rachis 

 chaffy or scaly. 



•J- Pinnae cordate at the base. (34) A. horizontale. 

 •J-f Pinnae not cordate at the base. 



(35) A. longissimum. 



c.c. Pinnae unegual-sided at the base, i. e. the acroscopical side broadly 

 cuneate or truncate and the basiscopical + narrowly cuneate. 

 1. Texture + herbaceous or merribranaceous. 



a. Fronds dimorphous, the fertile ones much longer and 

 broader than the barren ones. (36) A. monotis. 



a.a. Fronds uniform, the fertile ones + as large as the barren ones< or sn 

 j3. Pinnae bluntly rounded or mbtruncate at the apex.] 



