l'l';UN-Kr,()|{A OF CANADA. 



239 



c; K M • S X \' 11 . — PolysticllUia , Sc 1 k>tt. S/i /,•/</ Fm: 



iming' 

 ;tock. 



en, a 



mina 



ase, 



|ster ; 

 itain. 



1. P. Ai Kixs 1 ii iitMDKS. Si'hoft. Chnsfnnis Ftf>i. — Rhizoiiu> stout; lVi>iuls pale 

 ffreen, souu'what piilislunl, cHniai-i'Oiis ; stipo jirofusely (.•liafiy, with pali* siak-s ; lamina 

 Ions' 'I"'-' narrow, lin(.'ar-lanci'olate, siin|)ly pinnate ; pinna' lont;- ami narrow, lint-ar- 

 lancfolatt*, shortlv stalki-il, with a projtHMinic aurirk- at tlu' base on tlu' upper (anterior) 

 side, more or less distinetly serrate, with hair-tippeil teetli ; fertile (upper) pinna' sli^Iuly 

 eontraeted, eovereil beneath by the larm' i'i\nvtletl or eonlluent sori. I'' ronds evergreen. 



On /(trio, .Wtv' Jiiiiiisii.'ii /c, Oucbcc, .Wnui Smtia. Connnon in tin* woods in Xov.a 

 Scotia, southern New Brunswick, (^}uebec, and Ontario. 



2. V. Ml NiTi .M, Presl. lirilisli Cdlunib'ui S/iic/tl Fern. Rhizome stout, with ok! 

 sli|ie stulis, (endini;- in a crown ), frond biitls scaly; stipi's, covi-ri'il with iiri>wn scales, 

 one-third teniiCth o'i lamina ; lamina lanceolate, i to 2 or 3 feet loni;- by 3 to 5 inches 

 wide. Fionds evert^'reen. 



British Colunihitt : — \'ancouver Island, not rare tla-n-, but contined entiri'ly to the 

 Pacific L\>ast, beini^- unknown in tiie other I'rovinces. 



3. P. LONCIIITIS, Roth. Alpine Sliicld Fcr)i. IhiUy /•"(■/'//.Rhizome vi>ry stt)ut, 

 covered with wiry root-Hbres ; stipe very short with lart^e pale scales which extend, 

 but <^i sniaik'r sizi\ (o the rachis ; frontls ()~ icS inches or mi>re, ri^id, brij^ht mri'en 

 piilishetl, coriaceous, linear-lanceolate, simply pinnati-, pinn.'e mimcnnis, distant below in 

 yinmjii'er fronils, with hair-like scales beneath, above crowdetl, often imbricated, lance- 

 olate, falcate, an inch lonj^, acute, prominently auricled at the base on the upper (.-mterivir) 

 side, tiie mart,^ins with spin}' serratures and intervenint;' teeth. Sori on the upper portion 

 o'( the fronil, indusium rounded, peltate, denticulate. I-"ronds everi^'reen. 



Xova Scotia: — Aspey Hav, Cape Breton. Ontario: — Below the whirlpool, Bruce 

 Peninsula, Owen Sound. Also Rocky Mountains ami Cascatles. 



4. P. Br.M'NII, I.awson. Dr. Braiin's Sliirld Fern. — Rhizome stout ; fronds in 

 circular tufts with a larg'e central crown c»f frond buds ; frond al)out two feet hi^'h ; stipe 

 exceediiii^ly short, scaly, rachis scaly io the apex, with intermixed Iart;e and small pale 

 ferruginous scales ; lamina soft-herbaceous, lanceolate, shortly acuminate, much 

 narrowed below, bipinnate ; pinnules stalked, serrate, the small teeth tij-)pt>d bv soft 

 bristles. This species is related to the English P. arirulare, but is very different from 

 the northern European species, /'. aciilcattini, to which, however, forms from the Pacific 

 coast have recently beer referred. 



Xova Scotia: — Mabou ; Bras d'Or Lake; Canso ; Blomidon. AVtc lyrtiiiswick : — 

 Fredericton ; Andover. Quebec: — Gaspe and Silver Mountain; near Ouebec City; 

 Temiscouata ; River Roug-e. British Columbia: — Vancouver. 



