AN ENUMERATION OF CULTIVATED FERNS. 79 
Var. Cambricum, Willd. ; Bolt. Fil. Brit. t. 2, f. 
5 A ; Lindl. and Moore, Nat. Print. Ferns, t. 3, /. A. 
P. Cambricum, Linn. 
Var. semilacerum, Link. ; Lindl. and Moore, Nat. 
Print. Ferns, t. 2 A (bis). P. vulgare, var. Hiber- 
nicum, Sowerby, Ferns of Gr. Brit. t. 10. 
Var. acutum, Lindl. and Moore, Nat. Print. Ferns, 
t. 1 E. 
Var. serratum, Willd.; Lindl. and Moore, Nat. 
Print. Ferns, t. 2 B (bis). 
Var. crenatum, Lindl. and Moore, Nat. Print. 
Ferns, t. 3 B. 
Var. bifidum, Lindl. and Moore, Nat. Print. Ferns, 
t.lF. 
Var. crist at urn, Linn. ; Lowe’s New Ferns, t. 26 B. 
6. P. plebejum, Schlecht.; Hook. Gard . Ferns, t. 48; Lowe’s 
New Ferns, t. 33. P. Kav-winskianum, A. Braun; 
J. Sm. Cat. Cult. Ferns, 1857. — Tropical America. T. 
** Fronds pinnate. 
7. P. Henchmanii, J. Sm. ; Moore and Houlst. in May. of 
Bot. ; Lowe’s Ferns, 1, t. 30. P. fraternum, J. Sm. Cat. 
Cult. Ferns, 1857 (? Schlecht .). — Mexico. 
8. P. subpetiolatum, Hook. Ic. PI. t. 391, 392. P. biser- 
ratum, Mart, et Gal. Fil. Me x. t. 9,/. 1. — Mexico. 
1. P. sororium, II. B.K. — West Indies and Tropical America. 
6. LEPICYSTIS, J. Sm. 
Bhizome short and rigid, or slender and surculose. Fronds 
pinnatifid, 6 — 18 inches high, densely covered with round or 
elongated ciliated scales. Veins pinnately forked, anastomosing, 
Genus 6.— Portion of fertile frond, under side. No. 3. 
