46 10. HYPODERRIS. 11. WOODSIA, U WOODSIA. 



Euonoclea. Pert. fr. bipinnate ; pinnl. recurvato-globose ; invol. a globose, 

 pellicle, bursting at the summit. Veins of the fertile fr. copiously anastomosing. 



1. O. sensibilis, ~L.Hlc. Sp. Fil. 4. p. 160. 



Hab. N. Am., U. St., from Florida to Canada ; N. Asia, Amur, Japan, and Manchuria. 



Struthiopteris, W. Hk. G. Fil. t. 69. Sp. 2.3. Fert.fr. pinnate; pinnae 

 or flattish. Veins all free pinnated; invol. subhemispherical, very 



2. O. Germanica, W. ; fr. broad-lanceolate, long-attenuated at the base ; fert. 

 pinnae short, much contracted, linear-terete, torulose, lobed and torn at the 

 margin ; invol. cup-shaped, very fragile and soon obsolete. Hk. Sp. 4. p. 161. 



Hab. N. Europe, Scandinavia to Austria ; N. Asia, Manchuria to Altai ; N. America, 

 Canada to Pennsylvania. 



3. 0. orientalis, Hk. ; fr. ovato-oblong, not attenuated at the base ; fert. ones 

 oblong (often 2 ft. 1.) contracted ; pinnae linear-oblong, flattened 2-edged, the 

 broad refracted margins covering the whole back, dark purple-brown, glossy, at 

 length spreading, torn at the margin, inv. 0. ? Hk. 2nd Cent, of F. t. 4. Sp. 4. 

 p. 161. 



Hab. Sikkim, alt. 12,000 ft. ; Assam ; Hakodadi, Japan. I think Mettenius has 

 done well in uniting Onoclea and Struthioptens; and also in placing the genus near 

 Woodsia, on account of the involucre (when present) having its origin beneath the sorus. 



GEN. 10. HYPODERRIS, Br. 



Sori subglobose in lines or series parallel with the second, veins. Invol. calyci- 

 form, thin-membranaceous, fimbriated at the margin. Frond simple, subcordato- 

 hastate, costate, pinnatedly veined, membranaceous; veins alter nato-flexuose. 

 Veinlets copiously anastomosing. TAB. I. f. 10. 



1. H. Brownii, J. Sm. Hk. Sp. p. 57. Ic. PI. t. 675, 676 ; and in Gard. F. 

 t. 24. Woodsia, Mett. 



Hab. Trinidad. Fr. 10-12 in. 1., often hastately 3-lobed. 



GEN. 11. WOODSIA, Br. 



Sori globose. Invol. inferior, soft-membranaceous, from the first calyciform 

 or more or less globose, and sometimes enclosing the sorus, at length opening at 

 the top, the margin or mouth irregular Jobed or fringed. Small herbaceous Ferns 

 of cold or temperate climates, much tufted: the stipes often jointed and separating 

 at the joint. TAB. l.i. 11. 



Euwoodsia. Invol. smaller than the sorus, but fringed with hairs which extend 

 beyond it. TAB. I. f. 11. Sp. 1-3. 



1. W. Ilvensis, Br. ; slightly hairy above, St., rachis, costules, and veins below 

 crinite, with copious, rufous, chaffy scales ; fr. broad-lanceolate ; pinnae oblong, 

 obtuse, broader at the base, sessile, deeply pinnatifid with many oblong, obscurely 

 crenated lobes. Hk. Sp. 1. p. 63, and Brit. F. t. 8. 



Hab. Arctic regions and high mountains in the temperate zone, Europe, Asia, and 

 America. 



2. W. hyperborea, Br. ; glabrous, or with the St., rachis, and costce beneath 

 slightly hairy, mixed with a few scattered scales; fr. linear-lanceolate, pin- 

 nated ; pinnae cordato-ovate, pinnatifid with few (5-7) broadly-obovate, entire 

 lobes ; the inf. lobes distant. Hk. Sp^.p. 64, and Brit. F. t. 7. 



Hab. Similar in its distribution to the preceding. 



