NEPHRODIUM. 



569 



Though generally considered as an evergreen greenhouse species, 

 N. Sieholdii is sufficiently hardy to withstand the severity of the English 

 climate, as it is reported by Lowe to have survived the winter of 1854-55 in 

 the open air, while it also withstood the rigours of the winter of 1889-90 

 unprotected, in the neighbourhood of London. 



N. (Sagenia) Simonsii— Sag-e'-ni-a ; Sim-ons'-i-i (Simons'), Baker. 



A greenhouse species, native of the Eastern Himalayas, with fronds 

 bipinnatifid (twice divided nearly to the midrib), and borne on naked, blackish 

 stalks lift, to 2ft. long ; they are deltoid (in shape of the Greek delta. A), 

 1ft. to lift, each way, of a bright green colour, and smooth on both surfaces. 

 The small sori (spore masses), irregularly disposed between the main ribs, 

 are covered with a minute involucre of a fugacious nature. — Hooker^ Synopsis 

 Filicum, p. 504. 



N. (Sagenia) Singaporianum— Sag-e'-ni-a ; sing-ap-or-i-a'-num (from 

 Singapore), Baker. 



A stove sjDecies, of medium dimensions, native of the Malayan Peninsula 

 and Islands, with fronds 1ft. or more long, 2in. to 4in. broad, produced from 

 a creeping rhizome (prostrate stem), and borne on stalks 6in. to 12in. long. 

 These fronds are of a somewhat papery texture, oblong, entire, pointed at 

 the summit, narrowed rather suddenly, and then decurrent (running down) 

 gradually at the base. The closely-set sori (spore masses) are disposed four 

 to six m a line between the midveins. — Hooker, Species Filicum, iv., p. 42. 

 Hooker and Greville, Icones Filicum, t. 26. 



N. (Eunephrodium) Skinneri — Eu-neph-ro'-di -um : Skin'-ner-i 

 (Skinner's), Hooker. 

 This stove species, native of Guatemala and the Andes of Ecuador, is of 

 small dimensions, its sharply-pointed, spear-shaped fronds, borne on slender, 

 tufted stalks 2in. to oin. long and hairy, being seldom more than 8in. long 

 and lin. broad. They terminate abruptly below, and have oblong- sickle - 

 shaped, nearly entire lobes reaching half-way down in the centre, and often 

 quite to the midrib at the base, of a soft, papery texture, hairy underneath, 

 and with sori (spore masses) close to the edge. — Hooker, Species Filicum, 

 iv., p. 64 ; Second Century of Ferns, t. 25. 



