360 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



This tree flowers about the end of May, and the cones require 

 eighteen months to mature (G. Gordon, " The Pinetum," 1875). 



This elegant Pine grows from 90 to 100 feet high in its native 

 country, where the timber is in much repute. In Scotland it is 

 found in most collections, and forms a handsome ornamental tree 

 when growing in a light warm soil and sheltered site. It does not 

 thrive in cold damp soils, and bears exposure indifferently. The long 

 slender branches, gracefully clothed with bluish-green glaucous 

 leaves, contrast pleasantly with those of other darker-foliaged trees. 

 The tree is full of clear limpid turpentine, which flows from the 

 slightest incision of the bark (Trans. Eoy. Scot. Arb. Soc. vol. xii. 

 part 2). 



A specimen of Pinus excelsa, i^lanted in 1870, when measured lately 

 showed a height of 20 feet and a circumference of the stem of 3 feet. 

 Larger plants, not so old, have been seen in Denmark, but some of 

 them are not so vigorous. I possess cones ripened in Denmark. 



Finns excelsa has, Prof. Schlibeler says, done well for several years 

 in the Botanic Gardens at Christiania. It is also to be found here 

 and there as far north as Stockholm. 



P. e. longifolia. Seems to be hardy. 



P. fiiifolia, Lindl. Bot. Reg. 1840, app. 61 ; Loud. Encycl. of 

 Trees, 1008, f. 1889-90 ; Spach, Hist. Yeg. Phan. xi. 403 ; Endl. 

 Syn. Conif. 155 ; Knight, Syn. Conif. 33 ; Lindl. and Gord. Journ. 

 Hort. Soc. V. 216 ; Carr. Man. des PI. iv. 350, and Tr. Gen. Conif. 

 320 ; Gord. Pinet. 223 ; Henk, and Hochst. Syn. der Nadelh. 102 

 (excl. syn.) ; J. E. l^Telson, Pinac. 112. P. Skinneri, Forb. ex Gord. 



About a dozen of the names in Roezl's Catalogue (1857-58) might 

 be referred to this species. 



Habitat. — Guatemala. Hartweg saw it near Santiago, on the 

 Yulcan del Fuego, and on the mountains near the town of Guatemala. 



Introduced into Europe in 1840. 



I have only cones of this species. 



P. flexilis, Wislizenus. Long's Exped. ii. 27, 34 ; Torr. in 

 Ann. Lyc. N. York, ii. 249, and Pacific R.R. Pep. iv. 141 ; Eaton, 

 Manual, ed. 6, 265 ; Eaton and Wright, Bot. 359 ; Nutt. Sylv. iii. 

 107, t. 112, and ed. 2, ii. 167, t. 107 ; Lindl. and Gord. in Journ. Hort. 

 Soc. Lond. V. 220 ; Carr. in Fl. des Serres, ix. 200, Pev. Hort. 1854, 

 228, and Tr. Ge'n. Conif. 310, ed. 2, 392; Bigelow in Pacific P.P. 

 Pep. iv. 6, 20; Gord. Pinet. 224, and ed. 2, 302 ; Cooper in Smith- 

 sonian Rep. 1858, 262; Parry in Trans. St. Louis Acad. ii. 121; 

 Engelm. in Am. Journ. Sc. ser. ; 2, xxxiv. 331, Trans. St. Louis 

 Acad. ii. 208, AVheeler's Rep. vi. 257, and Bot. Calif, ii. 124 ; Henk. 

 cind Hochst. Syn. der Kadelh. 126 ; ISTelson, Pinac. 112 ; Bolander 

 in Proc. Calif. Acad, iii, 318 ; Hoopes, Evergreens, 131, f. 18 ; Pari, 

 in DC. Prodr. xvi. 2, 403 : Porter in Hayden's Rep. 1871, 494 ; 

 Watson in King's Rep. xxviii, 332, and PJ, Wheeler, 17 ; P.othrock, 



