11. WOODSIA, PHYSEMATIUM. 47 



3. W. ylabeUa, Br. ; quite glabrous ; fr. linear, tapering a little below, pin- 

 nated ; pinnae very remote towards the short St., all of them deltoid, very obtuse, 

 cut into few (3-7) short-rounded or subcuneate, entire lobes. Br. Hk. Sp, 1. 

 p. 64, and in Fl. B. Am. 2. t. 237. 



Hab. America, from the hills of New York northward to the Arctic regions ; Arak- 

 amtchechene Island, Behring's Straits ; Norway, Tyrol, Carinthia. Possibly a glabrous 

 form of W. hyperborea ; and there is a subglabrous Arctic American plant which closely 

 resembles W. Ihensis. 



4. W. lanosa, Hk. ; fr. oblong pinnated, quite shaggy with most copious, soft, 

 long ferruginous hairs, mixed with very narrow, long, chaffy subulate scales ; 

 pinnae subcordate, dentate or lobato-dentate, scarcely pinnatifid (the rest as in 



W. liyperborea). 



Hab. N. India; Mountains of Kamaoun ; alt. 11-12,000', Strachey and Winter- 

 bottom; Sikkim, alt. 14-16,000', Hooker, ^.Specimens from 3 different localities are 

 very uniform in the indument ; still, if W. glabella should prove a glabrous state of 

 W. hyperborea, this may prove a var. in the opposite extreme, sericeo-tomentose in a 

 very high degree. 



Physematium. Involucre larger than the sorus, not ciliated. Sp. 5-14. 



5. W. mollis, J. Sm. ; fr. lanceolate pinnate, generally densely clothed, espe- 

 cially beneath, with soft jointed hairs, scarcely attenuated below ; pinnae sessile, 

 from a broader base, oblong, obtuse, pinnatifid ; lobes approximate, oval or 

 subrotund, entire or crenate ; sori marginal ; invol. opening with jagged, circular 

 mouth. Hk. Sp. l.p. 60. Physematium, Kze. An. Pter. t. 27. W. fragilis, 

 Liebm. 



Hab. Mexico ; Guatemala, Salvin & Godman, n. 123. Andes of Peru and Quito, 

 Jameson, McLean. Our now copious specimens quite resemble Kunze's figure ; but the 

 involucres are rarely so perfect as he figures them. 



6. W. Guatemalensis, Hk. ; fr. a span to 1-|- ft. 1., lanceolate, firm-mem- 

 braaaceous, much attenuated at the base with the lower pinnse remote, 

 glabrous or villous ; pinnae from a broad base oblong, very obtuse, pinnatifid ; 

 ultimate lobes oval, slightly crenato-serrate ; sori copious, submarginal ; invol 

 whitish, pale, globose, opening irregularly at the summit and very permanent in 

 that form. Hk. Sp. 1. p. 61. t. 21. A. 



Hab. Guatemala (Salvin & Godman), Mexico (Liebmann, Schaffner). What is W. 

 Cumingiana, Kze., Hk. Sp. 1. p. 61, supposed to be from Chili ? 



7. W. Caucasica, J. Sm. ; fr. lanceolate, a span long, gland uloso-hirsute on 

 the rachises and costce, firm-membranaceous, bipinnate ; prim, pinnoe sessile, 

 nearly opposite, lanceolate, broadest at the base, acuminato-pinnatifid or again 

 pinnate ; lobes or ult. pinnl. oblong, acute, serrate ; sori large, 2 on each lobe or 

 pinnule, one on each side near the margin ; invoL globose, membranaceous, lax, 

 at first apparently entire with a central depression, at length opening with a 

 contracted, depressed, irregular and somewhat 2-lobed mouth. Hk. Sp. l.p. 62. 

 Hymenocystis, C. A. Meyer. 



Hab. Eare ; rocky places in the Caucasus, alt. 1,000-6,000 ft. 



8. W. elongata, Hk. ; glanduloso-pilose, especially above ; fr. a span to 1 ft. 1., 

 oblong, pinnated ; pinnce rather distant, alternate, sessile, from a broadish base, 

 oblong obtuse, pinnatifid not more than half-way down ; lobes short, rounded 

 inciso-dentate, each bearing a sorus (rarely more) on the lower anterior veinlet, 

 near the sinus ; invol. lax, very membranaceous, globose, soon bursting with an 

 irregular opening at the apex. Hk. Sp. l.p. 62. t. 21. C. 



Hab. N. W. India, alt. 10,000 ft. ; Edgeworth, Strachey, & Thomson. 



