205 



99. P.? (Eupolypodium) Struthiotiis, h. ; "fronds deeply 

 y)iniiatifid truncated at the base, segments linear obtuse re- 

 jjaiid approximate horizontal parallel." IVilld. — Liiin. Sp. PL 

 p. 1545. Siv. Sijn. Fil. p. 35. Willd. Sjj. PL v. p. 176. 

 3Ictten. Polypod. p. 60. Flum. FiL p. 64. t. 82. 



Hall. Saint Domingo, Plumier. — This remarkable-looking Fern is only known 

 l)y I'kiniier's figure and description. The former exhibits a large creeping caudex, 

 l)(;aring two fronds and the scars of many fallen ones ; stipes aljout 2 inches 

 long, jointed at the base ; fronds 10-12 inches long, 4-5 inches wide ; in shape it 

 is half of an oblong cut off, as it were, transversely at the base, pinnatifidly di- 

 vided to within ^ of an inch of the rachis, in a pectinated manner, into an immense 

 number of narrow-linear, very close-placed, horizontal, parallel, undulato-crispate, 

 obtuse segments, about a line wide. The author describes the margin of the 

 segments, " horde d'un petit cordon noiratre tirant tant soit peu sur le roux, et 

 qui leur donne un port tout a fait agreable." This is probably merely a coloured 

 and thickened crenated border ; but it seems to have led Willdenow to believe 

 that the plant had some relation to Pteris. 



100. p. (Eupolypodium) vuJgare, L. ; caudex long stout 

 creeping densely ferrugineo-squamose with crisped scales, 

 stipes 2-4-5 inches long stramineous, fronds 6-12 inches 

 long by 3-4 or nearly 5 wide coriaceo-membranaceous ovate 

 or oblong subcaudato-acuminate deeply pinnatifid nearly to 

 the base, sinuses acute above broad and obtuse below, seg- 

 ments horizontal or nearly oblong or linear-oblong obtuse or 

 more or less serrated rarely entire, veins twice forked, sori 

 in two rows subglobose. — Linn. Sp. PL p. 1544. Hio. Syn. 

 FiL t.ll. SchL FiL t.ll. IVilld. Sp. PL v. /?. 1 72. Hook, 

 et Am. Brit. FL ed. 8. p. 1149. Metten. Polypod. p. 61. 

 Hook. Brit. Ferns, t. 2. P. Virginian um, Linn. Sp. PL p. 

 1544. Sw. Syn. FiL p. 34. Willd. Sp. PL v. p. 174. Pursh, 

 Am. ii. JO. 658. P. australe, Fee, Gen. FiL p. 236. t. 20. /. 2. 

 P. cambricum, Limi. Sp. PL p. 1546 [abnormal form, with 

 more or less pinnatifid segments) . P. serratum, Willd. I. c. 

 p. 173. 



Hah. Common throughout most of the cold and temperate regions of the 

 globe : Europe, to its extreme south ; North Africa, Madeira, Canaries, and 

 Azores, where it generally attains a large size ; Siberia, the Amur, Manchuria, 

 Japan (unknown in the tropical continent of Asia, or even in the Himalaya). 

 From Erzeroum, Asiatic Turkey, I possess specimens; North America, United States, 

 and Canada, Uritish North America and north to Sitka, rare in California {A. B. 

 Eaton), Galeolti, mountains, 5000 feet, n. 6552 (frond exactly ovate, 4^ inches 

 long ; segments close, nearly tV an inch broad, very obtuse, two lower segments 

 reflexed), south to Mexico; but I do not know of its existence further south in 

 the new world. It makes its appearance in the Cape Colony, South Africa {Bol- 

 ion). — Although varying a good deal in size, and in greater or less breadth of the 

 segments, etc., this is a species in general easily recognized. 



101. P. (Eupolypodium) ellipsoideum, Yea ;" caudex e\on- 



