34 



THE BOOK OF CHOICE FERNS. 



C. a. chrysophylla — chry-soph-yr-la (golden-leaved), Hooker. 



A variety with pinnules (leafits) more nearly equal, disposed in numerous 

 opposite pairs, tlie frond narrower and longer, densely coated with yellow, 

 not white, ceraceous (waxy) powder on the under-side. — Hooker.^ Species 

 Filicum, ii., p. 113. 



C. (Aleuritopteris) aurantiaca — Al-eu-ri-top'-ter-is ; aur-an'-ti-ac-a 

 (orange-coloured), Moore. 

 A very handsome, greenhouse species, native of Mexico, with fronds 4in. 

 to Sin. long and 2in. to Sin. broad, borne on pohshed stalks lin. or 2in. long 

 and of a chestnut-brown colour. They are bipinnate (twice divided to the 

 midrib), with opposite leaflets, the lower ones spreading, spear-shaped, lin. to 

 IJin. long, fin. broad, cut down nearly to the midrib into numerous, linear- 

 oblong, entire or shghtly-notched pinnules (leafits). The upper surface is 

 naked, and the lower one densely coated with bright orange meal. — Hooker, 

 Species Filicum, ii., p. 114. 



C. (Aleuritopteris) aurea — Al-eu-ri-top'-ter-is ; au'-re-a (golden). 

 Baker. 



This lovely, divarf-growing, stove species, more generally known under the 

 name of C. Borsigia?ia, is a native of Peru and Guatemala. Its fronds, about 

 oin. long and deltoid (in the shape of the Greek delta. A), are borne on tufted 

 stalks 2in. to Sin, long, ebeneous and slightly scaly. They are twice or three 

 times pinnatifid (cut nearly to the midrib), with leaflets deltoid, the lowest 

 much the largest, decreasing in length towards the summit of the frond. 

 The under-surface is densely covered with a rich yellow powder, while the 

 upper one is sparingly covered with yellow meal, especially along the 

 veins. The involucres (coverings of the spore masses) are broad and of 

 a membranous (parchment-hke) nature. — Hooker, Synopsis Filicum, p. 476. 

 Lowe, New and Rare Ferns, t. 16a. 



C. (Aleuritopteris) Borsigiana — Al-eu-ri-top'-ter-is ; Bor-sig-i-a'-na 

 (Borsig's). Synonymous with C. aurea. 



C. Bradburii — Brad-bu'-ri-i (Bradbury's). Synonymous with C. tomentosa. 



