342 FILICES. [Scolopendrium. 



pinnae oblong, obtuse, inciso-serrate, the superior base rounded 

 and subauriculated, the inferior one truncated. Br. Fl. ed. 3. 

 p. 453. E. FL v. iv. p. 307. E. Bot. t. 392. 



In clefts and caves of rocks near the sea. Howth, Killiney-hill, 

 and abundant on the southern and western coasts. 



4. A. Ruta muraria, Linn. Wall-rue Spleen-icort. Fronds 

 bipinnate, especially below ; pinnules obovato-cuneate, lobed 

 or bluntly toothed ; involucre jagged at the margin. Br. Fl. 

 ed. 3. p. 453. E. Fl. v. iv. p. 309. E. Bot. t. 150. 



Walls and fissures of rocks, frequent. Three to four inches high, 

 somewhat glaucous. Fruit about the middle of the pinmdes, after- 

 ■wards covering the whole of their surface. 



5. A. Adiantum nigrum, Linn. Black-stalked Spleen-wort. 

 Fronds ovate or deltoid, tripinnate below ; pinnules ovato-lan- 

 ceolate, inciso-pinnatifid, toothed ; principal rachis winged ; 

 sori at length confluent. Br. Fl. ed. 3. p. 453. E. Fl. v. iv. 

 p. 310. E. Bot. t. 1950. 



Banks and fissures of rocks, common. Stipes purplish-black. I 

 found in 1805, on the limestone rocks at Mucruss, a beautiful and de- 

 licate variety, with fronds tripinnate throughout, or with pinnules 

 deeply and finely laciniated ; it was subsequently found by Miss Hut- 

 chins and Doctor Taylor ; and Mr. W. Andrews lately gave me a 

 specimen, collected by him in 1835, on a mountain called Cahir-Couree, 

 six miles from Tralee. 



6. A. Filix famiina, Bernh. Short-fruited Spleen-toort. 

 Fronds broadly lanceolate, bipinnate ; pinnules linear, oblong, 

 acute, often drooping, inciso-serrate ; serratures bi-tridentate, 

 acute ; lower one at the upper margin large, auricled ; sori 

 oblong, at length arched at the base. Br. VI. ed. 3. p. 453. — 

 Athyrium Filix fcemi?ia, Roth. — Aspidium Filix fcemina, Sw. — 

 E. Bot. t. 1459, (not good.) E. Fl. v. iv. p. 295.— Polt/po- 

 dium Filix fcemina, Linn. — /?. smaller. Aspidium irriguum, 

 E. Bot. t. 2199. E. Fl. v. iv. p. 296. 



Moist shady places, abundant. /3. found by the sides of large stones 

 in a marsh at Mucruss, along with Aspid. Thelypteris. 



6. Scolopendrium. Sm. Hart's-tongue. 



Sori linear, transverse, on lateral nerves. Involucre double, 

 occupying both sides of the sorus, superficial, opening, as it 

 were, by a longitudinal suture. — Named from the lines of 

 fructification resembling the feet of a Scolopendra. 



1. S. vulgare, Sym. Common Hart's-tongue. Fronds sim- 

 ple, oblongo-ligulate, acute, heart-shaped at the base ; stipes 

 scaly. Br. Fl. ed. 3. p. 454. E. FL v. iv. p. 314. E. Bot. t. 1150. 

 — &'- °fficinarum, Sio. — Willd. — Asplcnium Scolopendrium, Linn. 



Shady banks, moist rocks, the insides of wells, and in caverns where 



