lesquekeux.1 ENUMERATION OF CRETACEOUS PLANTS. 340 



Aralia conoreta, spec. nov. PI. IV. figs. 2, 3, 4. Cret. Flora, PI. 



XXIX, figs. 8, 9. 



Leaves small, very thick, coriaceous, palmately five-lofted to below the 

 middle, cuneate and curving to the petiole; very entire; primary veins 

 three, from the top of the petiole or from a little above the border base of 

 the leaves, the lateral ones forking ; all thick, fiat, and deep, preserving the 

 same size to the top of the pointed lobes. 



These leaves vary in diameter from five and one-half centimeters 

 to eight, across the point of the lobes, not as long as broad; cuneate 

 to the thick petiole, which they reach by a more or less abrupt curve; 

 divided to below the middle in three to five equal oblong lanceo- 

 late-pointed or obtusely-pointed lobes, separated by narrow sinuses 

 and very entire. The primary veins are very thick and flat, the lateral 

 ones forking above the point of union, as it is the case in all the forms 

 of this type; the secondary nervation is totally obsolete, as in the 

 former species. This, however, differs from it, not only by the subdi- 

 vision in five lobes, but also by the remarkably broad middle nerve. 



I had originally separated as a different species, the leaf, fig. 4, under 

 the name of Aralia semi-orbiculata, on account of its remarkable half- 

 round base; of the difference of size of some of the lobes and of the 

 acute sinuses. As the primary nervation is the same and the secondary 

 one as obsolete as in the other leaves, the coriaceous consistence being 

 also a common character, I regard it as probably a mere variety. This 

 appears the more rational, as all these leaves come from the same locality. 



Habitat. — Clay Center, H. G. Towner. 

 Aralia Towneri, spec. nov. PI. IV, fig. 1. 



Leaves large, coriaceous with polished surface, five-lobed to below the mid- 

 dle; lobes oblong, obtuse, or obtusely pointed, entire ; primary nerves three 

 from the top of the petiole, the lateral ones forking above the base ; second- 

 ary veins on an open angle of divergence, camptodrome. 



This fine leaf of which a part only is figured, is, as seen from another 

 specimen, fifteen centimeters long, from the top of the petiole, and 

 twenty to twenty-four centimeters broad between the point of the lobes 

 which, descending much lower than the middle, are seven to ten centi- 

 meters long and three to three and one-half centimeters broad. The 

 primary nerves are comparatively narrow, not half as thick as in the 

 former species and gradually narrowing to the point; the form of the 

 lobe is obloug, the point slightly obtuse, the sinuses also obtuse. The 

 secondary veins, distant and on an open angle of divergence pass toward 

 the borders in curves and follow them in festoons, anastomosiug by nerv- 

 illes with those above; they are generally separated by tertiary shorter 

 veins, forming by their ramifications in more or less oblique directions 

 square or polygonal angular large meshes. Though the general out- 

 line and the division of these leaves are similar to those of the former 

 species, they evidently differ, by narrow, primary veins, less coriaceous 

 substance, polished surface, and distinct areolation. The type is, how- 

 ever, the same. 



Habitat. — Same as the former, H. G. Towner. 

 Aralia quinquepartita, Lesqx., Cret. Flora, p. 90, PI. XV, fig. 6. 



Leaves membranaceous, three-nerved from a distance above the base; five- 

 lobed by the forking of the lateral primary nerves ; lobes oblong or oblance- 

 olate, somewhat narrowed downward, distantly dentate toward the point; 

 base of the leaves deltoid cuneiform. 



We have now of this species, described in the Cret. Flora from a mere 

 fragment, a far better specimen. It represents a leaf sixteen centime- 



