162 FILICES. 



and situated above the point where the veins fork, becoming con- 

 fluent when they attain to maturity ; the fructification is distri- 

 buted over the whole back of the frond. Eocks near the sea by 

 Daddyhole Plain. Babbicombe Down. Old walls about Tor- 

 quay and Cockington. Rocks near Hope's Nose. Wall of Kings- 

 kerswell churchyard, in great abundance. Walls at Paignton, 

 etc. P. Y.-IX. 



5. A. Ruta-muraria (rue-leaved Spleenwort, or Wall-Sue.) 

 In crevices of rocks and on old walls, frequent. " Fronds bi- 

 pinnate ; pinnules rhomboid wedge-shaped, notched or toothed at 

 at the end ; indusium jagged" (Sab. Man. p. 426). (Sm. E. B. t. 

 150. Moore, Nat. Print. Ferns, t. 41 A. Sowerby, Ferns, t. 32. 

 Moore, Handbook, p. 188.) Caudex short and tufted, with nu- 

 merous branching fibres ; fronds growing in tufts, from 1 to 6 or 

 8 inches long, borne on a smooth purplish-brown stipes fully as 

 long as or longer than themselves ; the fronds are of a deep 

 green colour, and of a somewhat leathery substance, deltoid in 

 outline, and usually bipinnate : in young and starved plants the 

 fronds are occasionally simply pinnate, with roundish or kidney- 

 shaped pinnae. Pinnae and pinnules alternate ; pinnules rhom- 

 boidal, wedge-shaped at the base, the upper margin irregularly 

 toothed or serrate. Venation consisting of veins running from 

 the base of the pinnules, and branching above in a forked man- 

 ner, sending a venule to every tooth and serrature, there being no 

 apparent midvein. The sori are situated on the inner side of the 

 veins, occupying the centre of the pinnse or pinnules, they are 

 linear in form, and covered by a narrow white indusium with a 

 wavy or jagged margin which is however not distinguishable 

 after the earlier stages of fructification, the sori in the latter stages 

 becoming confluent. The spore-cases are dark brown. Rocks 

 near the chasm at Daddyhole Plain. Rocks on Babbicombe 

 Down. Walls about Torquay, Cockington, and Shiphay. Old 

 walls, near Paignton. Kingskerswell churchyard wall, etc. P. 

 v.-ix. 



SCOLOPENDRIUM. HART'S-TONGUE FERN. 



" Clusters long, straight, two together. Indusia of each pair 

 opening towards each other." Bab. Man. p. 418. 



S. vulgare (common Hart* s-tongue Fern.) On old walls and 

 ruins, on shady hedge-banks, in woods and thickets, on the sides 

 of wells, and in moist shady places generally. " Fronds oblong- 

 strap-shaped, smooth, simple, with a cordate base, stipes shaggy'* 

 (Bab. Man. p. 427). (Sm. E. B. t. 1150. Moore, Nat. Print. 

 Ferns, t. 42. f. 1. Sowerby, Ferns, t. 35. Moore, Handbook, 



