492 The Cryptogamous Plants of Dr. Roxburgh. 



Nat. of the tops of the highest mountains of Amboyna^ 

 It differs from all I have yet found, in having the fructifi- 

 cations close to the veins, (nerves of the serratures or seg- 

 ments.) 



26. P. parasiticum. Aspidium parasiticum, Hb. Madras, 

 Wall. Cat. 67, No. 2239 ? 



Stipes sometimes pubescent; fronds lanceolate, (3-4-feet 

 high,) pinnate ; leaflets subalternate, ensiform, pinnatifid (to 

 the middle,) apices fine, and entire ; barren segments obtuse, 

 entire, the lower pair larger. Fructifications in two rows, 

 parallel with the nerves of the segments. Involucres round- 

 reniform. 



Nat. of various parts of India. The above definition is 

 taken from Molucca plants. 



27. P. longifoUum R. 



Fronds linear, (3-4 feet high,) pinnate leaflets ; alternate, 

 and opposite, ensiform, pinnatifid, apices rather obtuse ; 

 entire, and fertile throughout ; segments entire, incurved, 

 obtuse. Fructifications in two lines, of numerous spots, 

 parallel with the nerves of the segments. Involucre round- 

 reniform, uncommonly permanent. 



Nat. Amboyna. 



28. P. acutum. R. 



Stipes smooth, channelled ; fronds (3-4 feet high,) lanceo- 

 late, a little hairy, sub-bipinnate ; leaflets subalternate, linear- 

 lanceolate, and ensiform, pinnatifid to near the base ; most 

 acute, segments linear, incurved, entire, rather obtuse. 

 Fructifications in two fines, parallel with the nerves of the 

 segments. Involucre round, 2-lobed. 



Nat. of Amboyna. 



Differs from P. longifoUum^ in the leaflets having exceeding 

 acute, sterile apices ; and in being more deeply pinnatifid. 



29. P. pilosum. R. 



Fronds (12-18 inches high,) hairy bipinnate at the base, 

 middle pinnate, top pinnatifid, leaflets acute, their lobes 



