GENUS, MADOTHECA, Dumortier.

LEVIGATA, Schrad.

Hooker, Brit. Jung. pl. 35; Cooke, Brit. Hepat. f. 141.

On shady rocks near Lydford.-Mr. Holmes.

Holne

Chase. Dr. Parsons. Torquay among Neckera-crispa.
Horrabridge.—Mr. Marquand.

-E. P.

RIVULARIS, Nees.

Cooke, Brit. Hepat. f. 142.

On alder trunks near Fingle Bridge; rare.-Mr. Holmes. Chagford.-Mr. Marquand.

PLATYPHYLLA, Linn.

Hooker, Brit. Jung. pl. 40; Cooke, Brit. Hepat. f. 143.

A generally distributed species, Plymouth.-Mr. Holmes. Dunsford, Ugbrooke Park, Heavitree Quarry, near Exeter, &c.-E. P.

GENUS, PHRAGMICOMA, Dumortier.

MACKAII, Hooker.

Brit. Jung. pl. 53; Cooke, Brit. Hepat. f. 147.

In chasms of the limestone rocks at Babbacombe; also at the Devil's Bridge, Lydford; Mount Edgcumbe.-Mr. Lyell. On trees, Egg Buckland.-Mr. Holmes. Hooelake.-North Devon Guide. Chudleigh Rocks.—Mr. Marquand.

GENUS, LEJEUNIA, Libert.

NEMATIFOLIA, Dumort.

Hooker, Brit. Jung. pl. 51; Cooke, Brit. Hepat. f. 149. Coombemartin.-North Devon Guide.

Var. B. ECHINATA, FOLIIS ELEGANTISSIME ECHIMATIS.

On trunks of trees, Torquay.

Jungermannia.

SERPYLLIFOLIA, Dicks.

See Hooker's British

Hooker, Brit. Jung. pl. 42; Cooke, Brit. Hepat. f. 153.

On rocks by the side of the Tavy, and amongst mosses on various parts of Dartmoor.-E. P. Buckland Monachorum. Mr. Marquand.

MINUTISSIMA, Auct.

Hooker, Brit. Jung. pl. 52; Eng. Bot. 1633; Cooke, 155.

On trees near the ground. On fir-trees, Mount Edgcumbe. -Mr. C. Lyell. Shaugh Bridge.-Mr. Marquand.

GENUS, FRULLANIA, Nees von Esenbeck.

DILATATA, Linn.

Hooker, Brit. Jung. pl. 5; Cooke, Brit. Hepat. f. 157.

On trunks of trees; common, and generally distributed.

Var. B. With obcordate, dentate stipules. This variety differs only from the typical species in the form of the stipules, being broadest at the top, with a deep indentation, and in having a small tooth on each side. On the bark of trees, Exeter district; apparently rare.-E. P.

HUTCHINSIÆ, Hooker.

Brit. Jung. pl. 1; Cooke, Brit. Hepat. f. 159.

This rare and beautiful species has been found at Lydford by Mr. Holmes.

FRAGILIFOLIA, Taylor.

Cooke, Brit. Hepat. f. 160.

On shady rocks and trees. Dartmoor.-Dr. Carrington. TAMARISCI, Linn.

Hooker, Brit. Jung. pl. 6; Cooke, Brit. Hepat. f. 162.

On rocks and trees; common, and generally distributed.— E. P.

SECTION III.-FRONDOSE, OR WITH A DISTINCT STEM AND LEAVES.

PUSILLA, Linn.

GENUS, FOSSOMBRONIA, Raddi.

Hooker, Brit. Jung. pl. 69; Cooke, Brit. Hepat. f. 164.

On wet clayey banks. Brook near Tamerton Foliot.—Mr. Holmes.

LYELLII, Hooker.

GENUS, BLYTIA, Endlicher.

Brit. Jung. pl. 77; Cooke, Brit. Hepat. f. 168.

On boggy ground, Devonshire.-Dr. Carrington.

EPIPHYLLA, Linn.

GENUS, PELLIA, Raddi.

Hooker, Brit. Jung. pl. 47; Cooke, Brit. Hepat. f. 171.

Exwick (wet rock); Stoke Wood, near Exeter; banks of the Tavy, &c.-E. P.

GENUS, BLASIA, Micheli.

PUSILLA, Linn.

Eng. Bot. 1328; Hooker, Brit. Jung. t. 82, 83, 84; Cooke, Brit. Hepat. f. 173.

Grows in large and dense masses on a dripping rock facing the sea at Dawlish, near the entrance to the gentlemen's bathing ground; in fine fruit, April 21st, 1885.-E. P.

PINGUIS, Linn.

GENUS, ANEURA, Dumortier.

Hooker, Brit. Jung. pl. 46; Cooke, Brit. Hepat. f.

Bogs on Dartmoor; common. Mr. Holmes. Bogs on Woodbury Common.-E. P. Bog near Rippon Tor.Dr. Greville.

PINNATIFIDA, Nees.

Cooke, Brit. Hepat. f. 175.

On a wet clay bank in a lane leading to Marypole Head, near Exeter.-E. P.

MULTIFIDA, Linn.

Hooker, Brit. Jung. pl. 45; Cooke, Brit. Hepat. f. 17; Eng. Bot. t. 186. On wet banks and dripping rocks; frequent. Lydford, Plymouth, and Totnes.-Mr. Holmes. Exwick (wet rock), Haldon, &c., fruiting abundantly in April. A form of this species grows to several inches in length in the "Holy Well," or Spring in Ugbrooke Park, the seat of Lord Clifford. It grows attached to stones and limestone rock, entirely submerged; is of a bright emerald-green when seen under water, and has a rough feeling when handled, probably from minute crystals of lime, as the water is more or less charged with the carbonate; the spring rises in the limestone rock.-E. P.

FURCATA, Linn.

GENUS, METZGERIA, Corda.

Hooker, Brit. Jung. pl. 55, 56; Cooke, Brit. Hepat. f. 180. Most abundant on trees in damp woods, producing male perigonii in great numbers in the autumn; the female fructification is produced in the spring.-E. P.

Family, MARCHANTIACEAE, Corda.
GENUS, LUNULARIA, Michel.

VULGARIS, Mich.

North Devon Guide.

Cooke, Brit. Hepat. f. 185.

Rare.

GENUS, MARCHANTIA, March.

POLYMORPHA, Linn.

Eng. Bot. t. 210; Cooke, Brit. Hepat. f. 186.

Common everywhere. On the sides of damp ditches, and near waterfalls.-E. P.

GENUS, DUMORTIERIA, Nees von Esenbeck.

IRRIGUA, Nees.

Eng. Bot. t. 2545; Cooke, Brit. Hepat. f. 189.

Damp places by streams. Torquay, Dartmoor.-Dr. Carrington.

CONICA, Linn.

GENUS, FEGATELLA, Raddi.

Eng. Bot. t. 504; Cooke, Brit. Hepat. f. 190.

Near Marsh Mills; in fruit.-Mr. Holmes. Exwick (wet rock), dripping places, and sides of streams; frequent.-E. P.

GENUS, REBOUILLIA, Raddi.

HEMISPHÆRICA, Rad.

Eng. Bot. t. 503; Cooke, Brit. Hepat. f. 191.

Common everywhere, on damp hedges and ditches, waterfalls, &c.-E. P.

GENUS, TARGIONIA, Micheli.

MICHELLII, Corda.

Eng. Bot. t. 287; Cooke, Brit. Hepat. f. 192.

Liverton and Ilsington.—Mr. Marquand. Devon.—Mr. Hudson, in English Botany.

GLAUCA, Linn.

Order, RICCIACEA, Nees von Esenbeck.
GENUS, RICCIA, Micheli.

Eng. Bot. t. 2456.

On damp earth in Mr. Sclater's nursery (April); in fine fruit. As the spores ripen, so the frond decays, until only the apices are left with any vitality in them.-E. P.

FLUITANS, Linn.

GENUS, RICCIELLA, Al Braun.

Eng. Bot. t. 251.

In railway ponds and sides of ditches, creeping over mud, and partly floating, in the Exeter district.-E. P.

NOTES ON NOTICES OF THE GEOLOGY AND

PALEONTOLOGY OF DEVONSHIRE.

PART XII.

BY W. PENGELLY, F. R. S., F. G. S.

(Read at Seaton, July, 1885.)

KENT'S Hole and the Caverns at Oreston will be found to occupy a large place in this batch of Notes.

I. THE CLIFFS FROM HARTLAND TO CLOVELLY: The English Illustrated Magazine on. 1884.

An Article on Clovelly, in The English Illustrated Magazine for December 1884 (ii. 151-163) is not quite free from Slips, as has been pointed out elsewhere (See pp. 313-316 in the present Volume). It is here proposed to Note the only Geological Notice in the Article, which is as follows::

"Steep limestone cliffs, broken by rugged combes full of wild vegetation (the delight of the painter and the plague of the pedestrian everywhere on this coast), run westward" [from Clovelly]" to Hartland Point, a mighty promontory of contorted rocks." (p. 156.)

I have no manner of doubt that the word "limestone," which I have italicised in the foregoing quotation, is a Slip. No limestone is indicated there in the map of the Geological Survey; I have neither detected nor had reason to suspect the presence of limestone when personally investigating the district; if there be limestone there, it has been treated with neglect by all the numerous writers on North Devon geology -including such practised observers as De la Beche, Murchison, and Sedgwick-as they have all failed to mention its existence; Mr. Townshend M. Hall, F.G.S., who lives almost