Plate XIX a. 



THE WALL RUE OR SPLEENWORT 



(ASPLENIDM RiJTA-MURARIa). 



ASPLENUIM, Linnteu*. 



Clusters of StHtrc-cas€$ linear, oblong or elongate, straight, attached along the inner or 

 anterior side of the veins or venules, furnished with an indusium or membranous 

 cover. Indnsium of the same form, entire or somewhat jagged on the margin, 

 opening along the inward side, or that toward* the inidveiu or axis of venation. 

 Veins disunited at their extremities their branches (venules) simple or forked ; 

 sometimes furcately branched without a uiidvcin. 



A. euta-muraria: fronds deltoid, bi-tri-pinnate ; pinnules obovate, or rhomboid, wedge- 

 shaped and entire at the base, the anterior margins acute rounded or truncate, 

 toothed ; wri linear, crowded, central : indusium va-uulate on the free margin, 



ftylUk Jfefi*iij», iii.t.160; JuajtVit /V^it.M Il<nl*r t ffr*™ IWrn^LM iMter **& At**t % 



ffrif,Jh Ftfita, 573. RatiAffan. JJvnazl *f Briritk Jt&t*nj f 111- Dt*bin r FMgnphia lfrit**miat> it. 75. 

 Xc&man, Ifitt&ry of HritM Prrar, 201- J/berr, JfttJtJb^k <*/" JtfitUl /Vi**tf t 1C7. &<r*/4r, Fcr*4 of Gr&it 



Britain 55. t. 31 ff7/«*no*\ $mw ffatfanw, v. 311. $tkk*hr t £rypts$*nittle Gf*orl*r, 75, t. SO *. 

 $prr*pr! t Sfittm* Fi^Mi'Im, «* (art. bjii. Kitaibd), Pmt, Ttnttmeit JVmky^W, 10$. fiV ( Gt**r* 



Fitkmm, im Grvy t /Maty of -Y*r7ta*« Umitfi Rait*, 627. 



A>rn;Miu mnotiu, Aavwrvt, /7ov* /rjnpiur. i. 2$. 



AilUnVV tii'ftALK, Jftv»A*rtf.; Sthrtder** Journal JZr di* fUiotih, 1901, i* 10. oVitfafy, /Voj'fv . vj r 403. 



Omy, JW-rnif ^/roa^meni ofllrituh Plant*, ii. 14. jfafct, Iktamictt Afaforia ,IW«m, iv. CIO* 

 ScotorE^puicu KctA-ui'iiLuiA, /f<*fA, f "for* IfrnwuiiVrf* iii 52. 

 AvniUX Hi-ta-MiTfuvU, *\>«n*M, History of JtritUh IW/u, l! cd. 10; ft«d.tU( JppttJix to Pfyfofcjitt. 



ISM, TtiL 

 T«w»m Krr*-«cfcAuu. ftaaA AJuW/mj /Sofoniar, 81, 



AiniMlH rYOU.lCHt Li*****. if&, /a Hero. 



EXPLANATION OF THE PLATE. 



Pi.atv XI*1* A* — Ammxiifu IUta*w*aki* j 1, from Groat Orawi H<*kri t Canurvunthiro ; S. 0. Or*y. 2, from Alburr, 

 Surrey; T.J/. 3,4, from Arundel, Suwox; G. J/cftma, 5 t from Ktawick, Cumberland; MUt IVrifU* G.frotoTowa 

 Mailing KvnX 1 J>r* AlUHm- 7. A* RrrA-Mcaxau CBimxiiaft from SL^Iord, Surrey; I>r. Atltlti*, & A. l£t n-ui baku 



CMl.iTEKtl.T, from Muffliw, Ireland , Dr. Alkhim, 



HABITAT.— Tho Wall Kuc U generally diUrlbute.1 through Oimt Ilrilain and Ireland, !«■ frequent on tlio owtem aide 

 of England, according to Mr. Newman, ami nro in the Highland*, accenting to Mr. Wnisoa, It grows oa rock* 

 lib! ^11 rum» r *it4 in almwUnor oa oltl unlli. Its rnn^t* of altitude ii ottinxxtod lu cxt<ml frotn tbo eoAtt l*id, about 

 000 fivi or ujfflnrtlB above it. 



GEOGRAPHICAL DI8TEIBUHON.— lWi F«*ii m »pr«*d owr tl«- whxJo of Europe, from Hwtttril to Oro«c. U b 

 found in Koihrntr, cm J Tfeibrt (Wo. Httlxr) \ nod in the C*uc*iim provinow of Asiatic Kua«m, a» veil ai oo tho AitAtic 

 udo of ibo Urel Mountains and In llio mnoit* of tin* AlUi t ai»d of L&ko lbiln) r in Liberia* According to Itunbv^ 

 it grom* in Alexia. It i* alto rod with in Nortli Auwriva^iii ronHavlruii^ Virginia^ suid Kentucky (//* t Hwktr), 



Caudex sliort, thick, tufted, seal)". Scales small, very dark brown, narrow lanceolate, striato-reticulate. 

 Fibres wiry, branched* 



Stipes as long as, or longer than tho frond, smooth, dark purple at the base, green above* Itachis 

 smooth, green. 



Vernation circiiiatc. 



Fronds one to six inches long, numerous ; terminal, adherent to the caudex ; deep green, sul)- coriaceous, 

 often coriaceous, deltoid, hi -tri- pinnate ; when young, simple and reniform, or trifoliately pinnate, with 

 roundish or sub-rcniform leallets, tho latter state fertile. Pinnw alternate. Pinnules obovate or 

 rliomboidal, the base we^Ige^shaircd, entire, and tapering into a more or less distinct petiole, the apex 

 rounded, or acutely prolonged, or truncate, always toothed, with the teeth small and nearly equal- 





