/ 



( 



TO THE IIISTOIIV OF CERTAIN CONIFKllS. 195 



No 



p. 5; Parlafore in DC. Frodr.xvl ii. p. 420 (1868); Seemahn, 

 Holani] of ' Herald.^ 



Pinus hirtella, Ilumh. Bonpl. et Kunth^ L c. 

 Abies Iiirtella, Lindlc)/ ; Carriere. 

 Picea hirtella, Loudon. 



In montibus Moxici et Guatemalan, alt. 4000 peel., Hiimholdt^ 

 Hartweg !, Hoezl !, 'Linden 3 !, Bonrgeaii 1143 !, Christy !, Parry 

 et Palmer 847 !, Seemann ! ; Guatemala, Skinner ! 



This beautiful Pir varies in the amount of pubescence of the 

 stem, in the colour of the leaves and coues, and also in degree of 

 hardihood. 



The leaves start from all sides of the branches, but are so 

 tAvisted as to form about four rows, one on each side of the 

 branch, from which the leaves come off, at an angle of about 40'"*, 

 and two others disposed along the centre of the horizontal 

 branches, the individual leaves being given off at an angle of 10"^, 

 the lateral leaves thus spreading more or less horizontally away 

 from the branch, the uppermost ones aj^pressed to it, and more 

 or less parallel in direction to it. The largest leaves measure 

 about 1| inch. In form they are linear, pointed, curved, deeply 

 grooved on the deep green upper surface along the midrib, silvery- 

 grey on the under surface between the prominent midrib and tlie 

 strongly recurved margins. On a cross section the deep central 

 groove on the upper surface is very conspicuous, as also are the 

 revolute margins. The two resin-canals arc close to the epidermis 

 on the loAver surface, and the strengthening cells or hypoderm 

 are either continuous, or in other specimens tbey do not form a 

 continuous layer but are broken up into detached masses. In 

 all the native Mexican specimens examined by me the hypoderm 

 was continuous. 



The buds at the end of the lateral shoots are subglobose, 

 covered with whitish or pale violet obtuse scales. 



The cones are erect, 5 by 2| inches, cylindric, oblong, slightly 

 narrowed towards the top, rich dark violet, or in some cases paler, 

 covered with whitish resin, with prominent bracts ending in an 

 acuminate point and markedly reflected. (See PI. VI.) 



My knowledge of the cultivated plant is derived from speci- 

 mens grown in the garden of the Hon. and Eev. J. T. Boscawen, 

 Lamorran, Cornwall, and of Mr. Smith Barry, Fota Island, Cork. 

 In the latter garden there are two varieties, differing as above 



