FERN FAMILY. 491 



golden-yellow, sometimes paler ; the fertile fronds at length nearly cov- 

 ered with brownish lines of spore oases. Cal. to Ariz. 



* * Fronds obscurely triangular-oblong or narrower. 

 - Twice or less pinnate. 



G. sulphtirea, Desv. West Indies ; fronds narrowly lanceolate in out- 

 line, l c -l.l high, 2'-3' wide, pinnate ; pinnae ovate or ovate-oblong, lower 

 ones gradually smaller and very remote, pinnatifid into ovate, obtuse 

 toothed or ragged lobes, the lower surface covered with sulphur-yellow 

 powder. 



G. calomelanos, Kaulf. Trop. Amer., the commonest Gold and Silver 

 Ferns of the conservatories, and variable ; much like the last, but broader 

 and larger, the lower pinnae largest, and lobes mostly acute. The powder 

 white, or in var. CHUYSOI>HYLLA golden-yellow. 



G. far/area, Desv. (G. DEALBATA). Trop. Amer.; fronds dull green 

 above but snowy- white-powdered below, oblong-triangular, l-2 long 

 and half as broad, the dark-chestiiut-brown stipes 6'-12' long, the spear- 

 lanceolate pinnae largest at the base of the frond and divided into oblong, 

 bluntish, nearly or quite entire segments. There are forms with yellow 

 powder. 



t- -t- Fronds more than twice pinnate. 



G. schizophylla, Moore. Fronds from a central crown, slightly powdered 

 below, about 2 long and 6' broad, on slender reddish stipes, the pinnules 

 divided into ^ery small ultimate segments. Delicate and graceful, often 

 producing young plants from the fronds. Jamaica. 



5. NOTHOLJENA (spelled also NOTHOCHL.\:NA). (Greek, signifying 

 spurious covering, the woolly pubescence of some species concealing 

 the marginal fruit dots.) The following species are small, 4'-8' high, 

 ovate in outline, mostly tripinnate ; their ultimate divisions roundish, 

 ovate or oblong, distinct, stalked, and covered beneath with a waxy 

 powder ; stalk and branches dark brown and polished. 



N. flavens, Moore (N. CHRYSOPHYLLA of gardens). Central Amer. ; 

 powder bright yellow ; fruit dots extending from the. edge almost to the 

 midrib, so that it might equally well be considered a Gymnogramme. 



N. nivea, Desv. Very like the first, but the powder snowy-white, 

 and the fruit dots closer to the margin; pinnules long-stalked, the seg- 

 ments roundish, the terminal ones largest and either entire or 3-lobed. 

 Central Amer.. to N. Mexico, etc. 



N. dealbata, Kunze. Differs from the last (of which it is probably 

 only a variety) in its smaller segments, which are more numerous and 

 longer than broad, the terminal ones rarely lobed. Kan. and Mo., S. W. 



6. ADIAlffTUM, MAIDENHAIR. (Greek, meaning unwetted, the 

 rain dro$grnot adhering to the fronds.) A large genus, most abundant 

 in warm climates. 



* Frond two-forked, with elongated simply pinnate divisions springing 

 from the upper side of the two recurved branches ; midrib of the pinnules 

 none; veins forked from the base. 



A. pedatum, Linn. MAIDENHAIR. In shady woods ; whole plant 

 smooth, l-2 high ; principal divisions 4'-10' long, l'-H' wide ; pinnules 

 very numerous, oblong, broadest at the base, obtuse, lobe"d from the upper 

 edge ; fruit dots at the top of the lobes ; involucres transversely oblong 

 or linear. 



