GEOLOGICAL SURVEY OF THE TERRITORIES. 6d6' 



FlCUS PLANICOSTATA, Sp. nov. 



Leaves large, thickisb, entire, elliptical or broadly ovate, slightly 

 pointed or obtuse, rounded — subcordate to a short petiole, three-nerved 

 from the top of the petiole, penninerve above, nervation comptodrome. 



Species represented by a large number of fine specimens. The basi- 

 lar secondary veins are branched outside, 5 to 6 times, the upper lateral 

 veins at a distance from the basilar ones, are closer to each other, all on 

 the same acute angle, 30°, to the broad, flat, medial nerve, ascending to 

 the immediate borders where they curve, following them as marginal 

 and anastomosing in bows from one to the other. These secondary 

 veins, too, are broad and flat ; nervilles very distinct in right angle to the 

 veins. The size of these leaves vary from 7^ to 12 cent, long, and from 

 5 to 10 cent. wide. This fine species is distantly related to Ficiis Schim- 

 peri, Lsqx., of the Mississippi flora. 



Ficus PLANICOSTATA, var. LATiPOLiA, Lsqx. 



This form difl'ers so much from the primitive type that it should, per- 

 haps, be considered as a distinct species, though the nervation is the 

 same. The leaves are broadly round, broader than long, with a short, 

 scarcely-marked, obtuse point, cordate at base, with the borders curv- 

 ing downward and slightly decurring on the short broad petiole. 

 These leaves are 10 cent, broad and 7 to 8 cent, long, resembling Ficus 

 tilicefolia, A. Br., but 'of a thinner texture, of equilateral base, and of 

 less coarse nervation. Though there is no transitional form between, 

 this form and that described in the former species, I consider them as, 

 yet as varieties. 



The shales bearing these leaves have also some small fruits of Ficus, 

 probably referable to the same species. They are nearly round, abruptly 

 narrowed to a short, broad pedicel, irregularly wrinkled, of the same 

 size and form as the fruits ®f Ficus dimidiata, Gray, of Cuba. 



On the same specimens, too, there is a slender branch with oppo- 

 site, small leaflets, which, though still unopened, are referable to this, 

 species by their nervation. The branch is smooth, inflated at the point 

 of attachment. It bears two pairs of these leaves at a distance of 2^ 

 cent., with naked opposite branchlets between them. These leaves are 

 scarcely 2 cent. long. 



Ficus TILL^FOLIA, (?) Al. Br. 



A mere fragment of a large leaf, referable to this species on account 

 of its coarse nervation and rugose surface. 



Ficus clintoni, sj). nov. 



Leaves of a thinner substance, comparatively small, entire, broadly 

 ovate, oblong, obtuse, rounded at the base, three-nerved from the top 

 of the petiole, with two upper x^airs of secondary veins at a distance 

 from the base, camptodrome. 



This species, represented by numerous specimens, has, too, some like- 

 ness with the varieties of Ficus planicostata, Lsqx. It has, however, 

 leaves of much thinner texture, with only two pairs of secondary veins- 

 at a great distance from the basilar ones, all much smaller in size, va- 

 rying from 3 to 6 cent, long, broadly oval, entire, and more or less un- 

 dulate on the borders. The two basilar lateral veins ascend bv an acuta 



