DESMID FLORA OF DARTMOOR. 249 



Assy combe Hill, yet others are on the eastern slope of Long 

 Kidge. On the northern side of the South Teign river the 

 bogs extend up the "slopes of Thornworthy Tor. All these bogs 

 drain into the South Teign river or its tributaries. The Metherall 

 district is bounded on the south by Water Hill, south-west by 

 Assycombe Hill, west by Long Ridge and north by Thornworthy 

 Tor, and forms a very natural basin. The average altitude of 

 the bogs is about 1,250 feet. 



II. GiDLEiGH. — This district is bounded on the north by 

 Cawsand Beacon, on the south by Thornworthy and Kestor, on 

 the west by Watern Tor and on the south-west by White Horse 

 Hill. In it is situated one of the two principal bogs of the 

 moor, the well-known Raybarrow Mire. This bog streams down 

 the southern slope of Cawsand Beacon, past Kennon Hill and 

 Ruelake Pit until it reaches the Wallabrook on Gidleigh Common 

 near its junction with the North Teign river, altogether a dis- 

 tance of about three miles. More or less connected with this 

 vast bog are those on the slopes of Hound Tor to the north-west 

 and Watern Tor to the west. These important bogs drain into 

 the North Teign river and its tributary the Wallabrook, and 

 make it one of the best collecting districts on the moor. South 

 of the North Teign river are the bogs on Shovel Down which 

 drain Stanetor Hill. This district also forms a very natural 

 basin with its bogs averaging from 1,200 to 1,300 feet in altitude. 



III. Lydford. — This district on the western side of Dartmoor 

 extends from Black Down on the fringe of the moor to the 

 central ridge composed of the Cranmere and Cut Hill eminences 

 where it joins with sections I and II. It is bounded on the 

 north by Great and Little Links Tors and Amicombe Hill and 

 extends to Nat Tor and Staindon Hill in the south. The bogs in 

 this district drain into the rivers Lyd and Tavy and their 

 tributaries. Compared with the other districts mentioned in 

 this paper the bogs here are of less extent and the collecting 

 altogether poorer. Their altitude ranges from about 900 feet 

 on Black Down to 1,250 on Ger Tor. 



IV. Haytor. — This section was less thoroughly worked than 

 any of the others, owing chiefly to bad weather and limited time. 

 The bog^ examined were principally around Haytor, Rippon Tor 



