:I 



ri:u\-Kr,()UA of Canada. 233 



C'.KNTS I\'. ronnstadtia, Mi-RNHARni. /)rnns/n//'s Frrn, or Iluy F,r,i. 



n. I'l'Nl'Tll.iMU I.A, Mimrt*, (iossnturr or Hay h\rn, l-'inml two li't-t tM- iniuc" in 

 It>i)j4^tli, with sjoiit, frt'rt, wii-y slipr and rarliis, ami soil, thin, paU»->ffi'tMi, liiu'ly-ilivitloil 

 downy lamina, i-xlialiii);- llu' oilour of swri-t hay wIumi tity. Rhizoint* slt'nd»'r ami 

 bramin'il, fXtiMisivt'ly iifcpiii)^ in soil or anioni; slom's ; lamina i-lon^ato-ohloniir, bii>ail 

 at hasf, );Tailnally alUMiiialtil ill iIh' upprr hall, l)ipimiatf, ilowny ami j^lamliilar ; tlu' 

 si'j4nuMits roimdi'd ; imlusiiim an opt-n, pali'-i-olouivd lU'st-iike cup, tonlaininjf the 

 spore I'ast's. 



Xova Scoiid, Quebec, and \eii< liruns^vuk : — Stony pastures ami waysides, eoinnion. 

 Ontario : — Not eominon, ami ileiTeasin^- westward ; I'ittshnrj^, near Kinj;:stoti ; I'reseott ; 

 Ramsay, ^i-. The tfi-mis was named iti iHo;^ to eommetnorati" August Willu'lm Dennstedt, 

 a (.'uMinan botanist, author of the l-'iora of Weimar. 



GKM'.S v.- CyatoptoriS, Hkknuardi. niadiU-r Fern. 



1. C. iKACll.is, Rernhardi. Brittle Bladder Fern, IVonds from a vimv few inelu>s 

 to a loot in lenj^th, usually brij^ht ^-reen ; rhizome com|viet ; stipe d.irk jiurple at the 

 base, seldom muili eloiij^ated, brittle, and easily broken if specimens are not handleil 

 caret'ully ; lamina broadly lanceolate in outline (the fertile (MU's nairowi-r), glabrous, 

 bipinnate; pinii.e and pinnules ovate-lanceolate ov t)blonj^ ; the latter obtuse, incisi'ly 

 toothed, thin ami veiny ; sori larj^e. 



\'ar. !^i:ntata. Hooker, is a dwarfed form, scarcely bipinnate. 



Var. Mackavii, Lawson, has narrowly lanceolate, dark or tlull j^-reen |iinn.a*, far 

 apart, the |iiniuiles wed^-e-shaped at base, and rounded at apex. 



Widely distributed all over Canada, but only on shady, rockv banks or hillsides, ami 

 chiedy wlu>re the air is kept moist by neig^hborinj; lakes, rivers, or the sea. \'ar. 

 Mackayii is a common form in Nova Scotia. The name of the jfenus is derived from the 

 texture and form of the indusium, which is like a minute intlated ba^ or bladder. 



2. C. BlLBIKKRA, Bernhardi. Bulh-hearimr Bladder Fern. Berry-bear ini^ Fern, 

 of the old botanists,— Fronds verv variable in size, from 5 or 6 inches to \z or iS 

 inches in lent^th, thin, bright j^reen ; rhizome compact, stipe redilish, much shorter 

 than the lamina, lanceolate or linear-lanceolate, bipinnate, often bu lb-hearing- towards 

 the ajiex on the under surface ; pinucU oblons^-lanct'oiale, narrowed at th<* tips ; pinnules 

 oblonj^, obtuse, incisely toothed ; sori small, usually not very numerous ; indusium short. 

 This species produces fronds of two forms, — the one bein^ broad at base and ccmpara- 

 tively short, with horizontal pinna', while the other kind is narrow and drawn out to a 

 great leng'th (six or seven times longer than broad) ar.d with less horizontal pinna?. 



X07 a Scotia, Xciv BtunsTiick, Quel ee, Oiilario:- — In moist woods and shady, rocky 



