w 



Plate XXL 



THE NARROW PRICKLY-TOOTHED BUCKLER FERN 



(Lastrea spinulosa). 



LASTREA, Pretl 



Cluster* of Spore-cast* circular, medial or subtcrminal on the venules, covered by an 

 indusium, or membranous scale. Indmiurn reniforra, *>., more or less regularly 

 rotundatc with a posterior notch ; attached by the sinus or notch, the margin 

 becoming frea Veins simple, forked, or pinnate; wnuUs direct disunited at 

 their extremities. 



L, snirouu: fronds erect, narrow oblong-lanccolato, bipinnato ; pinna elongate 

 triangular, oblique ; pinnules oblong, acute, inciso-serrato or phmatifid with 

 aristatcly toothed lobes ; posterior basal pinnules of the lower pinna} much 

 larger than the anterior ones : scales of the stipes few, ovate, pallid ; indusium 

 without marginal glands, 



La»T»U *nxVUMA t ite*t t 2krt4menItoridvHpki*76* lTataatai- Afe*a«l tf RriM /?<rf«y, .|ia Sjwrfy. 



Lx»t« A cbi.tata y . «nx^» p J/borc. /Mtafr ffBtitM Am, 1 I6\ p»ftb*«* |tt ftarrr!ftt«XIX.l 

 Umu uiLATATA.mr. uxcaiu^ ITatfiayfa-, &****£ tfBritiA A***?, I <4.» ttO (tad. *yn.) 

 fUhtvu >m^», JVrirmair, flWarfttirft .IAmm-, mi, 21. Jtata, Ftoajrwaitai Mii^ ir. 10k 



FoMronnr* FiLu-rauiK^iar.minMij WVim, i'W* tt^cja-Har. 316\ 



Aarmiiu -n^r^r Mf #„*-. ^^ V Fthcumt m Mkl^ «V^V CnnMa-, 4% t. 48 fowl 



fl*. * c). tyrcaod, S,Wc«a rtgrrMtimm, iv. 100 (to part, ■>., Otd. character of inAiaium, and »™«iyio)« 

 PoLTtnaini mxvMv, /toi, JTm 0™*****, iiL oi. 

 toriioniiru anxoar*, JVnum, PAjYoko.V, fe an 8 Appf«Jis t mil ; //j#fa*-a< oftiritiih Fmu, 1G7. 



EXPLANATION OF THE PLATE. 



Pun XXL— Limit mmom A, from BUri Part, IWttnghainihiroi J> r , Atttli*. 

 $. F. Grey, C, from Gon»hall t Surrey t & F Gruy\ 



I, from WlmbMoa, Sumj- 



HABITAT.— Thii apoci« b eotumon. u»d doubttau ffcncraUy diitribiital, thougli not alwaya well diacritninaW from 

 Indfotol*9 axucquMlr th* record* of It- dbtributioti arc not frw from doubt. It Homer gro«* poorally in 

 damn ahady p!ac«,and ocenra orer the vbdte or England; ipccimona from tl» province or the Tyuo (Oiitintfon 

 wood, XoHbiimbrrland), Hiitrrto unrecorded, bare boon ccanirjuiu\»ted by the lfe v , R. ftplor. In Walta it mm* 

 !«. groornl, and ii thrro nwtt plentiful in tbo loutbrrn part* In Scotland ami in Ireland it « apparently rare. 

 Wo bar*, bowovcr, found U atTarbot OH tbo Dunbortonaluro ■boro of Lodi Lomond; Mr. Tail ha* COm»tttfe*t«d 

 authentic -pocimcuj fr*u DunMd. m Portb-Kir^s and no bm bctn &<o«feJ «kb olbcm bv S:r W. C. Trcrcl™ 

 from near UraHui OMtle, Ito-r^biro. Mr. X«nnui r,wnl* au IruH b^biui al D**troy ( in M«i £ Hui v an U* 

 Utborttj of >fr. L. Darby; Connenara, in Oalway t Md tarn retried; abo Kilhro^*. on tbr autboritr of 

 Mr, B.J, Uwo; Mr.D.MooToin4i it in Wicklow s ami wi* bavo a*vn a IbiRmeiit or what anpnn (o be lh» j^Hul 

 from X««noini p Mount Kennedy, in Widtlfttr, ^tberod by R Barringloo, Ba^. lu rang^ in ekralwn appear, io be 

 betwen tbo coft-t lord, and an altitude of about COO feet in England, or probably cXiiuiaVnWy more in Scotland* 



r.BOGRAPHICAL DlSTRTBUTIOi\.-Tbo range of thi. Fern » not at all accurately knoim, in rona^ueace cbicllv of the 

 confuiton wUob ha* geurralfy axkUd between it and X. JitataU, whieb reader* alntoat alt the published itatcmtot* 

 Op«n to doubt aa to the ipecioa to wbieb tboy really bcIoDp i and the fragmentary condition of too taaay fore^n 

 tpecinjen* preaerwd En herbaria, render* It ii»po»iblc to employ to tbo full extent thai ncurco of information. It 

 would appear to occur in Denmark (Jfa/A FL FriJ r and Ft l*n); in Sweden ; at St, Petenburj (lib. Or**) and 

 )fomw (//*. y/oairr) t in Hu«u; in Great BviUEn and Ireland; in lraace (/)ft J7. lVa*r.>; in Swttreriind 

 (//i. (Xroa) ; iu yuUau part. v f Gcrnunj,'. and in Hungary. Wo belk-w we nmy a1«o lien* refer ap^men* from 

 Ixibrador, Uoatoo, and Canada (//o\ JieaiW) ; though according to l>r. A*a Gray Ibo coaamon Aneitaii plant of ihia 

 aflimty U not J„ rpi*ult*a } but £, lofrrnoia*. 



Caudex sloutisli, decumbent or slowly creeping in an horizontal direction, with the frond* growing 

 erect from iu* npex ; branched, sometimes mom or less tufted, slightly scaly, formed of the enlarged and 

 enduring bases of the decayed fronds, surrounding a woody axis. Scales resembling those of the stipes. 

 Fibre* coarse, numerous branched, dark brown. 



Stipe* tormina] and adherent to the caudcx, nearly as long as the leafy part of the frond, stoutisb, 

 dark brown-purple at the base; sparsely scaly, with broad-ovate membranous pale-brown scales of 



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