TAB. LXXVL 



Lygodium (Etjlygodium) polystachyum, Walt 



Villosulum, longe scandens, ramis bipinnatis, pinnis remotis- 

 geminatis 1-1 j pedalibus ad basin saepe gemmiferis, pinnulis 

 alternis remotis petiolulatis in petiolulum articulatis, ste- 

 rilibus fertilibus conformibus oblongis vel ovato-lanceola- 

 tis pinnatifidis, segmentis oblongis obtnsis, fertilium laciniis 

 soriferis, rachibus pubescentibus bine longeque ferrugineo- 

 villosis, venis liberis. 



Lygoditvm polystachyum, Wall. Cat. n. 2200. 



Hab. Malayan Archipelago and Peninsula. Woody moun- 

 tains of Pulo-Penang, Wallich. Mergui (Griffith) and 

 Tonglow, and Mergui, Rev. C. S. P. Parish, n. 46, Moul- 

 maine, Thos. Lobb. 



An undescribed species of Lygodium, and unquestionably 

 among the most distinct of tbe Genus. Dr. Wallich was the 

 first to discover it, and we have specimens also from Griffith, 

 and from Mr. Parish. It appears to be an extensive climber, 

 the main rachis is deciduously villous and pubescent. The 

 primary pinnas spring in pairs from one point or side of the 

 main rachis, and often bear a shaggy gemma between them 

 at the base. The pinnae are 2-2^ inches long, and what is, as 

 far as I know, peculiar to this species, the fertile pinna? do not 

 essentially differ from the 6terile ones, they are merely a 

 little narrower, and the segments, somewhat contracted, bear 

 the two rows of capsules on the underside. 



TAB. LXXVL Fig. 1. Portion of a fertile plant, of 

 Lygodium. polystachyum, Wall. ; natural size. f. 2. Sterile 

 pinna; nat. size. f. 3. Sterile segment; magnified, f. 4. 

 Fertile segment ; magnified, f. 5. Sorus ; and/. 6. Capsule ; 

 more magnified. 



Cent. 2. t. 78 



