y6 BEAUTIFUL FERNS. 
Nephrodium Goldianum, Hooker & Greville, Ic. Fil. t. cii. — Hooker, 
Sp. Fil., iv., p. 1 2 1. — Hooker & Baker, Syn. Fil., p. 272. 
Lastrea Goldiana, Presl, Tent. Pterid., p. 76. — Lawson, in Canad. 
Nat. i., p. 282. 
Dryopteris Goldiana, Gray, Manual, ed. i., p. 631. 
Aspidimn Filix-inas, PuRSii, FI. Am. Sept., ii., p. 662. 
Hab. — Deep, rocky woods, from Canada and Maine to Indiana, 
Virginia and Kentucky. It is also named in local catalogues of the 
flora of Wisconsin and Kansas. Not known in the Old World. 
Description; — The root-stock is creeping or ascending, 
several inches long, and nearly an inch thick. This thickness 
is made up, in considerable part, by the adherent bases of old 
stalks; the stalks being perfectly continuous with the root- 
stock, and so much crowded as to overlap each other. When 
fresh the root-stock is fleshy, and a longitudinal section of it 
shows that its* substance passes so gradually into that of the 
stalk-bases, that no point of separation or distinction between 
the two can be selected. This kind of root-stock is found 
also in Aspidium spinidostmi and its allies, in A. Filix-mas, 
A. cristatum, A . marginale, A . Nevadense, A. fvagrans, and 
A. rigidum, and in very many exotic species, and it is very 
unlike the root-stocks of A. Thelypteris, A. Noveboracense, 
and A. imitum, species which have been already described 
and figured in the present work. The parenchymatous por- 
tion of the root-stock is loaded with starch in very minute 
grains, as may be easily proved by adding a drop of alcoholic 
solution of iodine to a thin slice of the root-stock placed 
