ACROSTICHUM. 



225 



A. (Chrysodium) semicordatum — Chry-so'-di-uin ; se-mic-or-da'-tuza 

 (heart-shaped on one side only). 

 This greenhouse species, native of the Neilgherries and Ceylon, has a 

 most peculiar appearance on account of its barren fronds, Sin. to 12in. long 

 by 3in. to 4in. broad, and sometimes proliferous (bearing young plants) 

 at their extremity, being entirely different in shape to all other kinds ; the 

 base of their upper side is cordate (heart-shaped), while the base of the 

 lower side is truncate (terminating abruptly) ; the fertile pinna} (leaflets), 

 lin. to ljin. long, are seldom more than one line broad. The fronds are 

 produced from a short-creeping rhizome (prostrate stem) of a woody nature. 

 — Hooker, Synopsis Filicum, p. 422. 



A. (Chrysodium) serratifolium — Chry-so'-di-um ; ser-ra-tif-or-i-um 

 (having fronds toothed like a saw), Mertens. 

 A stove species, of medium dimensions, native of Venezuela, Brazil, 

 Peru, Mexico, &c. Its barren fronds, which are borne on stipes (stalks) 

 lft. to lift, long, are fully 2ft. in length and Sin. to 12m. in breadth, and 

 are furnished on each side with numerous sessile (stalkless) pinnae (leaflets), 

 4dn. to Gin. long and lin. or more broad, and of a leathery texture. They 

 are produced from a short- creeping rhizome (prostrate stem) of a woody 

 nature, and slightly scaly. — Hooker, Species Filicum, v., p. 263. Nicholson, 

 Dictionary of Gardening, i., p. 20. 



A. (Chrysodium) serratum — Chry-so'-di-um; ser-ra'-tum (toothed), Baker. 



A stove species, of small dimensions and of purely botanical interest ; a 

 native of Tarapoto, East Peru. — Hooker, Synopsis Filicum, p. 524. 



A. Sieberi — Sie'-ber-i (Sieber's), Hooker and Greville. 



A stove species, which, although attaining medium dimensions, is of but 

 little decorative value ; a native of Mauritius and the Bourbon Islands. — 

 Hooker, Synopsis Filicum, p. 403. 



A. simplex— sim'-plex (undivided), Smarts, 



This stove species, which is found wild from Cuba to Brazil, is character- 

 ised by its firm, leathery barren fronds, Sin. to 12in. long and about IJin. 



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