22 



THE PINES OK MEXICO. 



Pixus Montezumae var. Lindleyi Loudon, Encycl. Trees & Shrubs, 1004, fig. 1883 

 (1842). 



Pinus Lindlevana Gordon, Pinctum, 229 (1858). 



Cones 10-15 cm. in length, their apophyses flat or somewhat pyramidal; leaves 15-25 cm. 

 long, often very slender ; conelets dark brown or nearly black. 



Nelson, 276 (347471, 398549) Mt. Orizaba, Puebla ; i486 (398561) Valley of Oaxaca ; 2180 (398568), 2189 

 (39S573) Chilpancingo, Guerrero; 3935 (398604) Pinal des Amoles, Quere'taro; 6599 (398631) Mt. Patam- 

 ban, Michoacan ; 6899 (398635) Mt. Tancftaro, Michoacan. Rose 6" Hough, 4292 (346236-7) Las Vigas, 

 Vera Cruz. Rose & Painter, 7015 (450584) Salazar, Mexico; 7952 (451572) Toluca, Mexico. Shaw, Toro, 

 Mexico ; Tres Marias, Morelos ; Nanacamilpa, Tlaxcala. 



The characteristic cone of this variety is pale brown with a conspicuously dark umbo ; the apophyses are com- 

 paratively mall and numerous, often rectangular in outline and very like those of the variety Hartwegii, but 

 brown not black. At Toro, on the Ajusco mountains, the two forms grow together with many intermediates, 

 and the evidence at this place is conclusive that they are of one species. 



The leaves of var. Lindleyi are often slender and drooping, like those of P. pseudostrobus. Without suffi- 

 cient material to determine the character of the bark and in the absence of characteristic cones the two are not 

 easily separated. Gordon, in his determinations of the Roezl species, confused this form of P. Montezumae 

 with P. pseudostrobus. 



Cone of Nelson 6599. 



Leaves of same. 



Leaf-section, magn. 30 diam. 



Leaf-section of Nelson 6899, magn. 30 diam. 



Pinus Montezumae var. rudis n. var. 



Pinus Montezumae Gordon, Jour. Hort. Soc. Lond. i, 234, fig. (1846). Gard. Chron. ser. 



3, viii, 466, figs. 91-94, 96 (1890); xv, 273, figs. 29-32 (1894); xxv, 146, fig. 53 (1899). 



Pinus rudis Endlicher, Syn. Conif. 151 (1847). 



Pinus Ehrenbergii Endlicher, Syn. Conif. 151 (1847). 



Pinus Hartwegii Parlatore, DC. Prodr. xvi, pt. 2, 400 (in part) (1868). 



Cones 6-10 cm. long, dull, sometimes lustrous brown; leaves 10-15 cm - m length; cone- 

 lets blue or blue black. 



Low temperate altitudes intergrading with the varieties Lindleyi and Hai'twegii. 



Nelson, 3939 (398607) Encamacion, Hidalgo; 4504(398617) Miquihuana, Nuevo Leon; 4567 (398621) 

 El Salto, Durango; 4916 (398623, 347470) Mt. Mohinora, Chihuahua; 6137 (347363) General Cepeda, Coa- 

 huila. Rose, 2193 (301 103) Santa Teresa, Tepic ; 2376 (302734), 2379 (302736) Sierra Madre, Zacatecas; 

 3004 (301980), 2727 (302713-4) Bolanos, Jalisco. Rose 6- Hay, 5537 (395299) Ajusco, Mexico. Shaw, 

 Eslava, Mexico; Pachuca, Hidalgo. Pringle, 8786,9484, 10012, Ajusco, Mexico. 



