63 



97. PINUS Russelliaiia ; pcntapliylla, foliis longissimis, strobilis clongatis 

 ]iorizontalibus siibcernuis verticillatis rectiusculis scssilibus : squamis ajjicc 

 rlioniboideis j))ramiilatis rcctis obtusis, seminibus obloiigis ala nigricante 

 4-pl6 brcvloribus. 



Found on the road from San Pedro to S. Pablo, near 

 Real del Monte. It differs from P. Devoniana in its cones 

 being shorter, not pendulous, nor curved, with the ends of 

 the scales distinctly pyramidal. The cones are from seven 

 to eight inches long, about two inches wide near the base, 

 and almost acute at the upper end. I trust to be excused in 

 the eyes of His Grace the Duke of Bedford, if I propose to 

 attach the name of Russell to this fine species. 



98. PINUS viacropliylla ; pentaphylla, foliis longissimis, strobilis rectis liori- 



zontalibus ovatis elongatis solitariis : squamis apice transversis rliomboideis 

 runcinatis, seminibus subrhomboideis rugosis ala testacea 4-pl6 brevioribus. 



The leaves of this are from fourteen to fifteen inches 

 long ; the cones grow singly, and are about six or seven 

 inches long, about three inches broad near the base, and 

 taper gradually into an obtuse point. The species differs 

 from P. Russelliana in the longer leaves and shorter and 

 stouter cones, the ends of whose scales are strongly hooked 

 backwards. Mr. Hartweg found a single tree, of small size, 

 on the " Ocotillo." 



99. PINUS pseudostrobus ; pentaphylla, foliis'tenuissimis glaucescentibus, stro- 

 bilus ovalibus verticillatis horizontalibus ; squamis apice rliomboideis py- 

 ramidatis erectis rectiusculis linea elevata transversa, seminibus ovalibus ala 

 nigrescente quadruple v. quintuple brevioribus. 



Mr. Hartweg describes this as allied to Pinus Devoniana, 

 but quite distinct and resembling P. Strobus in habit ; he 

 found it very common at Anganguco, about 8000 feet above 

 the sea. The leaves are fine and glaucous, like those of the 

 Weymouth Pine. The cones are about four inches long, by 

 an inch and half in breadth over the middle. 



100. PINUS apulcensis; pentajihylla, foliis tenuibus abbreviatis ramisque 

 glaucis, strobilis pendulis verticillatis ovatis acutis : squamis rhomboideis 

 pyramidatis rcctis nunc elongatis medio constrictis, seminibus ovalibus ala 

 lineari quadruple brevioribus. 



The short leaves and very glaucous shoots distinguish 

 this, independently of the ovate cones, covered closely with 

 pyramidal elevations, which are sometimes prolonged and 



