388 FILICES. 



D. III. Morwell Rocks ; Gould, mid Haiyer, S. D. Lit. Chron. 143 ; by 

 the Tamar lower down the river, 1876. Biickland Monachorum ; 

 by the Tavy ; Moore, Hist. Brit. Ferns, 268, 69 ; seen in many 

 places in Buckland Monachorum parish. Virtuous Lady Mine ! 

 abundant ; Keys, ih. Some small plants on a hedge-bank 

 near St. Budeaux, 1879. Sparingly near Blaxton. In small 

 quantity in one place between Denham Bridge and Beer 

 Alston, 1875. In one spot between Horrabridge and Plaster 

 Po^vn. Sampford Spiney. 

 IV. By the Plym, near Cann Quarry ; Bickleigh Vale ; Hare, Moore, 

 Hist. Brit. Ferns, 269 ; I have seen it in the Plym Valley, 

 mostly on rocks in inaccessible places. Shaugh ; Keys, S. D. 

 Lit. Chron. 385 ; seen in different spots in that neighbourhood. 

 Dry bank in the parish of Plymstock. Hemerdon. Upperton, 

 Bickleigh. Goodameavy. Meavy. Lovaton, and elsewhere in 

 the neighbourhood of Sheepstor. 

 V. Near Dalamore, and elsewhere in the parish of Cornwood. 

 VI. Lukesland, sparingly, 1875. In considerable quantity in a lane 

 below the Western Beacon, 1877. Near Stowford; a single 

 plant. 

 Occurs mostly in the semi-moorland parishes, or in places not far from 



tidal waters ; yet, looking at the entu'e area, the distribution of this fern 



is somewhat pecuhar. It has been stated to grow on " wet rocks," which 



it certainly does not here. 



852. A. Adiantum-nigrum, L. Black Spleenv:ort. 



Native ; on hedge-banks, walls, and rocks. Very common. June 



to November. Area general. 



Occurs close to Plymouth, and is one of the commonest ferns between 



the stones and in dry little hollows on the sides of the hedge-banks of 



the enclosed country, extending to the vicinity of Dartmoor. Occasionally 



found, very small, on walls in the town of Plymouth itself. 



ATHYKIUM, Both. 



853. A. Filix-foemina, Bernh. Lady Fern. 



Native ; in damp places and about sprmgs in woods ; by rivers, 



streams, and bogs, and on shady hedge-banks m cool or wet 



situations. Very common. June to September. Area general. 



Extends to Dartmoor, where it occurs by the streams and under the 



shelter of masses of rock. 



Very variable : a small form, with remarkably light yellowish-green 

 fronds and very convex pinnules, is frequent m bogs and open swampy 

 places in words; it appears to be ^. convexum, Nemn., A. rhxxticum, 

 Roth. Another, which seems to come best under A. Filix-foemina, Roth., 



