552 APPENDIX, 



No. IX. 



DESCRIPTION of Pinus Laricio, taken by Mr Bay in 

 Don, from the specimen in the General Jussieuan Ar- 

 rangement, at the Jar din du Rot. 



P. Laricio (Lamarck), foliis geminis praelongis patcntibus, 

 vaginis subintegris, strobilis ovatis rectis subsolitariis : squa- 

 mis depressis obsolete 4-angulis. 



Arbor altit. 56 pcd., pulcherrima, pyramidata, ad apicem at- 

 tenuata, cortice badio intcgro et epidermide decidua squa- 

 mosa tecta. Rami 8-10 in verticillis digesti, brcviores et 

 densiores quam Pino sylvestri. Folia gemma, numerosa, 

 pnelonga (6-7-uncialia), lenta, patentia, acicularia, semicy- 

 lindracea, subtus lucida, supra canaliculata atque leviter 

 striata, margine scabre serrulata, apicc mucronc corneo in- 

 structa, colore jucunde viridi. Vagina foliorum unciales, 

 subintegrae, argenteo-fusca?, nitida?. Strobili sessiles, ovati, 

 horizontaliter porrccti, subsolitarii : squamis induratis, lig- 

 neis, cinereo-fuscis, apice cuneatis depressis, obsolete 4-an- 

 gulis, spina umbonata minuta durissima armatis. 



This tree is totally distinct from all the varieties of Pinus syl- 

 vestris, with which, however, it in some respects agrees. The 

 tree in the Arboretum on the buttes, is 30 feet high and 3 feet in 

 circumference, and immediately beside it is growing P. sylves- 

 tri.s, or, as Professor Thouin calls it, P. scolica. The diffe- 

 rence is at first sight very striking. P. Laricio is a much 

 handsomer and finer tree, and is of a more pyramidal habit. 

 Its branches are shorter and more regularly verticillate. Its 

 leaves are a third longer, and of a lively green, with their sheaths 

 nearly entire. Its cones are shorter, ovate and quite straight, 

 with depressed scales; and its bark is finer and much moro 

 entire. The enlightened Professor of Agriculture informed 

 us, that it is equally hardy with P. sylvesiris, and that its wood 

 is milch more weighty and resinous, and consequently more 

 compact, stronger, and more flexible, than that of P. sylves- 

 It grows wild on the summits of the highest mountains 

 in ( it seems to bear cones very freely, which ripen 



y about the same time as those of P. sylvestris. The 

 tree from which the above description was taken, stands near 



