1428 The Trees of Great Britain and Ireland 



mountains of Comboire, Neron, and Saint Eynard. In the valley of the Durance 

 it is more abundant, and grows at Guillestre, Saint Clement, Saint Crepin, in the 

 valley of Ubaye, near Gap, and at Remollon. M. Ph. Guinier informs us that in 

 all these localities it grows on dry limestone soil, and usually as isolated trees. 

 At Saint Crepin, however, it forms a small wood above the village, at 3500 ft. 

 to 4000 ft. altitude. It is usually a small tree, 20 ft. to 25 ft. high, but in rare cases 

 attains 40 ft. in height. The trunk is short, irregular, and deeply furrowed ; and is 

 frequently 6 ft. to 10 ft. in girth — one tree at Saint Crepin being as much as 17 ft. 

 in girth. It attains a great age, a section in the Museum of the Forestry School 

 at Nancy, 0.94 metres in girth, showing 175 annual rings, and another 1.48 metres 

 in circumference showing 169 annual rings. 



/. thurifera is a native of south-eastern France, Spain, Portugal, Sardinia,^ 

 Morocco, and Algeria. It is common in the mountains of central and southern 

 Spain, occasionally forming pure open woods, one of which in the Sierra de 

 Albarracin is figured by Willkomm ; ^ or growing mixed with other conifers, as in 

 the fine forests of Pinus Laricio in the Serrania de Cuen9a. Here,^ on the Muela 

 de S. Juan, near Tragacete, it attains 25 ft. to 35 ft. high, and 10 ft. to 13 ft. 

 girth.^ Laguna, who gives many localities for this species in Spain, states that it 

 never ascends to the high altitudes occupied by J. Sabina, nor descends to the hot 

 and sandy plains, where J. phoenicea is often seen. It inhabits the zone between 

 2500 and 3500 ft. altitude, where there are abrupt changes of temperature, which it 

 supports well. It is always met with on soils which are either pure limestone, or 

 contain lime in considerable quantity. 



In Algeria,* y. thurifera grows mainly in the cedar forests at high elevations, 

 where it is usually a small tree, not exceeding 20 ft. in height. It was collected in 

 southern Morocco by Sir J. D. Hooker, (A. H.) 



Although this species was cultivated by Miller in 1752, it has never become 

 common, and according to Kent only thrives in warm and sheltered situations. 

 Loudon records a tree at Boyton 28 ft. high in 1837, and another at Croome, forty 

 years planted, which was 30 ft. high in 1838, but we have not found these specimens 

 now living. The largest tree in England is one at Bicton, about 40 ft. high, 

 4 ft, 4 in, in girth, conical in shape, and bearing male flowers in April 191 1, 



There are two trees at Kew, about 30 ft. high, which were planted in 1870. 

 Another at Bayfordbury, 30 ft. high, was planted in 1841, Smaller trees exist at 

 Highnam and Leonardslee, I saw a tree bearing ripe fruit at Simon-Louis's 

 nursery, Metz, which was about 40 ft, by 3 ft. in 1908. (H, J. E.) 



1 Grisebach, Veg. der Erde, i. 572 (1872), .states that it occurs in Sardinia. Cf. Nyman, Consp. Fl. Eur. iii. 676 

 (1881). 



2 Willkomm, Pflanzenverb. Iber. Halbinsel, 160, 185, fig. 11 (1896). 



' Dillwyn, Hort. CoUinson. 27 (1843), quotes a letter written to CoUinson in 1766 by Bowles, an engineer in Spain, who 

 states that large trees, girthing 14 ft., with wide-spreading branches like a beech, grew in the mountains near the source of the 

 Tagus. Willkomm confirms this. < Lefebvre, Forlts de I'Algirie, 431 (1900). 



