6 
PL end . cr. 
4s Aspidium. 1. FILICES. 
P. Dryopteris, Dickson , Dried PI. 16; Bolt. Fil. 53. 
Dryopteris Tragi, Ger. em. 1135. 
Filix putnila saxatilis prima Clusii, Park. 1043. 
Pol. calcareum, Smithy Ft. Br. 1117. 
Treefern. Rigid 3-branched polypody. 
Mountainous heaths in chalky soils; peren. July. 
Root shorter and thicker than P. pulchellum ; frond stiffer 
and more scaly at the base; leaves half the size, rather 
upright. 
C. Aspidiace^s. Sori round ; mvolucrum umbilicated 
or reniform, and either attached by the centre and open 
all round, or attached by one side and open on the other 
side. 
IV. 4. ASPIDIUM. Swartz, Schrad. Journ. Sh ; eldfern. 
Sori round; involu.cra kidneyshape, umbilicate, fixed in 
the centre, open all round. 
1. Aspidium asperum. Rough shield fern. 
Frond pinnate; stipes scaly; pinnce lanceolate, falcate, 
acute, ciliate, serrate, the base eared above, cut out below, 
upper ones only fruitbearing, under surface chaffy; son 
solitary. 
Lonchitis asperg, major, Rail Syn. 1 18, 2 • Ger. em. Il40. 
Polypotlium Lonchitis, Linn. S. P. 1548. 
Polystichum Lonchitis, Roth Germ. 3, 71. 
Royal polypody. Great spleenwort. Spleenwort polypody. 
Cleft of rocks; perennial; May, June. 
Frond 4 — 6 in. high, erect, narrow. 
2. Aspidium odoriferum. Scented shieldfern . 
Frond pinnate; pinnce lanceolate, smooth, beneath resino- 
glandular, pinnatifid ; lobes lanceolate, obtuse, not notched, 
the lower ones rather longer ; sori marginal, running to- 
gether. 
Filix mas ericeti Dunsmore Petiveri, Raii Syn. 122. 
Polypodium Thelypteris, ffuds. 457. 
P. Oreopteris, Ehrh. Cryp. 
P. montanum, Willd. Prod. 883. 
Polystichum montanum, Roth Germ. 3, 74. 
Aspidium Oreopteris, Swartz Syn. Fil. 50, 
Heath polypody. 
Mountainous heaths and dry woods ; peren. July. 
Root large, fibrous, scaly ; frond 3-4 feet high, lanceo- 
late; pinnce beneath smooth, covered with numerous golden 
resinous spots; sori numerous; involucra extremely thin, 
umbilicate, torn, withering quickly. 
