658 FLOWERS OF GARDEN AND GREENHOUSE 
pinnate. Lower pinne 12 to 18 inches long, wedge-shaped; pinnules 
wedge-shaped. Sori numerous, somewhat kidney-shaped. Greenhouse. 
A. GLAUCOPHYLLUM (glaucous-leaved). Similar to A. cuneatum, 
except that it is one-third larger in all respects, and that the under side 
is of a glaucous hue. A Mexican plant. Greenhouse. 
A. HISPIDULUM (somewhat bristly). Stipes erect, 6 to 15 inches 
long. Fronds forking, each division being fan-shaped. Pinne 6 to 9 
inches long. Pinnules oblique; outer edge bluntly rounded, finely 
toothed ; upper margin also finely toothed. Sori numerous and continuous, 
roundish. Greenhouse. 
A. MACROPHYLLUM (large-leaved). Stipes 6 to 12 inches long, erect, 
nearly black. Fronds 9 to 15 inches long, 4 to 8 inches broad, pinnate. 
Lower pinne, 3 or 4 inches long, the base overlapping the rachis; margin 
deeply lobed. Sori in marginal lines, continuous or interrupted. 
Stove. 
A. PEDATUM (footed). Stipes 1 to 2 feet long, erect, polished. 
Frond fan-shaped, the rachis dividing into two main branches, which 
are each recurved, and bear on the outside of the curve a number of 
nearly straight, pinnate branchlets. The largest of these pinne are 6 to 
12 inches long, with about thirty pairs of one-sided, oblong pinnules, 
whose upper margin is lobed and bears the roundish sori. Hardy. 
A. RENIFORME (kidney-shaped). Stipes tufted, 4 to 9 inches long. 
Fronds kidney-shaped, undivided, 2 to 4 inches across. Sori all around 
the margin, $ to } inch broad. Greenhouse. 
A. RUBELLUM (reddish). Stipes 4 to 6 inches long. Fronds wedge- 
shaped, 4 to 6 inches long, twice pinnate, purplish crimson when young, 
changing to green with a pinkish tinge. Sori round, in the lobes of 
pinnules. Greenhouse. 
A. TENERUM (tender). Stipes erect, 1 foot long. Fronds 1 to 3 
feet long, 9 to 18 inches broad, wedge-shaped; three or four times 
pinnate. Pinnules stalked, wedge-shaped to rhomboid, upper edge 
deeply lobed. Sori roundish in the lobes of upper pinnules. Stove. 
There are several varieties, of which Farleyense is exceedingly popular ; 
other good varieties are Lathomii, scutwm, and Victorve. 
A. TRAPEZIFORME (rhomb-shaped). Stipes 6 to 12 inches long, 
erect. Fronds 1 to 2 feet long, with a central pinna 4 to 6 inches long, 
and on each side two to four large, spreading ones, the lowest of which 
are often branched again. Pinnules oblique, the sides nearly parallel. 
Sori numerous, round upper and outer edges. Stove. Plate 311. 
A. Wituiamstr (Williams’), Stipes 6 to 8 inches long. Fronds 
triangular, 9 to 18 inches long, thrice pinnate ; when young, dusted with 
