NEPHRODIUM. 



529 



N. (Lastrea) guatemalense — Las'-tre-a ; gua-tem-a-len'-se (from 

 Guatemala), Baker. 

 This stove species, whicli is also found at Chiapas, South Mexico, has 

 the external appearance of a diminutive form of iV. effiisum ; but its narrowly- 

 triangular fronds, three times divided nearly to the midrib, and borne on 

 glossy, brown stalks 9in. to 12in. long and downy upwards, are seldom 1ft. 

 in length, being of a rigid but thin texture and dull green on both surfaces. 

 The sori (spore masses), of medium size, are disposed along the mid vein and 

 covered with a smooth, persistent involucre. — Hooker^ Sy7iopsis Filicum, p. 498. 



N. (Eunephrodium) Haenkeanum — Eu-neph-ro'-di-um ; Haenk-e-a'- 

 num (Haenke's), Presl. 

 A stove species, native of Ceylon and the Malayan and Fiji Islands. It 

 resembles the better-known cucullatum, but is of much larger dimensions ; 

 its fronds, borne on strong, upright, slightly hairy stalks 2ft. long, some- 

 times measuring 4ft. in length and IJft. in breadth. It is also of a less hairy 

 nature than that species, and its sori (spore masses) are provided with an 

 involucre of a very fugacious nature. — Hooker, Synopsis Filicum, p. 290. 



N. (Lastrea) Harveyi — Las'-tre-a ; Har-vey'-i (Harvey's), Baker. 



This stove species, native of Viti and Samoa, produces from a wide- 

 creeping rhizome (prostrate stem) its oblong- spear- shaped fronds, which are 

 2ft. to 3ft. long, Ift. to IJft. broad, bipinnatifid (twice divided nearly to the 

 midrib), and borne on grey stalks 6in. to 12in. long and slightly scaly at 

 the base. The stalkless leaflets are narrow -strap -shaped, 6in. to 9in. long, 

 Jin. broad, closely set, and cut down to a narrow wing into close, strap- 

 shaped lobes of a parchment- like texture and of a bright green colour on 

 both surfaces. The sori (spore masses), disposed on the margins, are 

 furnished with a persistent involucre. — Hooker, Synopsis Filicum, jd. 497. 



N. (Pleocnemia) heterophyllum — Ple-oc-ne'-mi-a ; het-er-oph-yr-lum 

 (variable-leaved). Hooker. 

 A small- growing, stove species, native of the Philippine Islands, with 

 fronds oin. to 6in. long, divided into blunt, oblong or slightly sickle-shaped 

 lobes reaching a quarter of the distance to the midrib. These fronds are 



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