11. WOODSIA, PHYSEMATIUM. 47 



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

 nated ; pinnce 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. kyperborea ; and there is a subglabrous Arctic American plant which closely 

 resembles W. ilvensis. 



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

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

 pinnce subcordate, dentate or lobato-dentate, scarcely pinnatind (the rest as in 



W. hyperborea}. 



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

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

 very uniform in the indument ; still, if W. glabdla 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 ; pinnce sessile, 

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

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

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

 Liebm. W. guatemalensis, Hk. Sp. l.p.Gl.t. 21. A. 



Hab. Mexico ; Guatemala ; Minas Geraes, Brazil ; 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. instilaris, Hance ; rhizome short ; scales 2-3 lin., oblong-lanceolate, red- 

 dish ; st. 1-1^ in., articulated near apex ; fr. oblong-lanceolate, 1^-3 in. 1., bipin- 

 natifid ; pinnce 6-8-jugate, bluntly lobed, lower reduced ; texture firm ; both sides 

 pubescent ; sori s"ubmarginal, 1-4 to a lobe ; inv. large, membranous, persistent, 

 with ciliated lobes. W. macroclilsena, Mett. Kuhn. Linn. 36. p. 126. 



Hab. Sea of Ochotsk, Dr. Clarice ; China, ScJiottmuller, 191. 



7. W. caucasica, J. Sm.; fr. lanceolate, a span long, glanduloso-hirsute on 

 the rachises and costce, firm-membranaceous, bipinnate ; prim, pinnce 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. W. fragilis (Trev.) Moore, oldest name. 



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



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

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

 oblong obtuse, pinnatind 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. 1. p. 62. t. 21. C. 



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



