352 ADDITIONAL SPECIES, ETC. 



416*. Sedum rufestre, Linn. 



Area 1 [2] * * 5 6 7 [8 * 10] * (12) 13. 



South limit in Somerset. [Devon ? Dorset ?] 



North limit in Caernarvon, Denbigh, Wigton ? 



Estimate of provinces 5. Estimate of counties 10. 



Latitude 51 — 55. Atlantic type of distribution. 



Agrarian region. Inferagrarian — Midagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 350 or 400 yards, in North Wales. 



Range of mean annual temperature 50 — 46. 



Native. Rupestral. The stations recorded for this 

 and S. Forsterianum, are still so confused together as to 

 render their correct assignment to the respective species 

 quite impossible until most of them shall have been veri- 

 fied afresh ; while some few among them very probably 

 belong to S. reflexum or glaucum. Judging of the two 

 alleged species from garden examples kindly given to me 

 by Mr. Borrer, S. rupestre is quite distinct from S. Fors- 

 terianum ; though I judge from imperfect knowledge, tlie 

 latter species having not yet flowered with me. I fear 

 that all the native examples kept in my herbarium, sent 

 under either name, must be referred to S. rupestre. Se- 

 veral of the stations have been reported for both species, 

 though usually by different collectors, that is, one record- 

 ing S. rupestre, another recording S. Forsterianum, from 

 the same spot. But Mr. Anderson (Linn. Trans, xi. 225) 

 and Mrs. Eussell (Phj^tol. iii. 7 7) believed that they found 

 both species intermingled in Somerset and Merioneth. 

 The Eev. W. A. Leighton refers all the Salopian stations 

 (Flora of Shropshire) to S. Forsterianum : I suspect still 

 that all may belong rather to S. rupestre, which would 



