842 SYSTEMATIC PALEONTOLOGY 



Description. " L. foliolis parvulis, ovalibus, breviter petiolatis, nervis 

 secundariis distantibus, curvatis, subtilissimis." Heer, 1874. 



Leaflets small, oval and unsymmetrical in outline. Length ranging 

 from 1.5 cm. to 2.8 cm. Width ranging from 8.5 mm. to 12 mm. Mar- 

 gins entire. Petiolule short. Midrib stout. Secondaries thin, remote, 

 three to five pairs, alternate, camptodrome, often obsolete. 



Leguminous leaflets from a number of widely removed localities have 

 been referred to this species, and while all of these are very similar in 

 general characters their positive identity cannot be affirmed with any 

 great confidence. Described originally from the Atane beds of Green- 

 land, they have been detected by Lesquereux in the Dakota group, by 

 Newberry in the Earitan formation, by Hollick at Marthas Vineyard and 

 Staten Island, and by the writer from Maryland. They are very similar 

 to other species of Leguminosites, as, for example, Leguminosites frigidus 

 Heer l described from the Patoot beds. 



Professor Heer in his last report (loc. cit.} refers this form to the old 

 world genus Colutea, but it does not seem wise to follow him in this ref- 

 erence with no more evidence than is available. 



Occurrence. MAGOTHY FORMATION. Grove Point, Cecil County. 



Collection. Maryland Geological Survey. 



LEGUMINOSITES CANAVALIOIDES n. sp. 

 Plate LXXVI, Fig. 6 



Description. Leaves compound, probably trifoliate. Leaflets large, 

 elliptical in general outline, with a rounded apex and base. Length 

 about 7 cm. Maximum width, in the middle part of the leaflet, about 

 6 cm. Margins entire. Texture subcoriaceous. Petiolule wanting. Mid- 

 rib stout, becoming attenuated diatad. Secondaries numerous, thin, 

 camptodrome, about ten pairs, diverging from the midrib at angles of 

 about 55. Tertiary areolation papilionaceous, mostly immersed. 



This species respresents a leguminous leaflet of unknown generic 

 affinity named from its resemblance to the leaflets of the existing species 



1 Heer, Fl. Foss. Arct, Bd. vii, p. 44, pi. Iv, figs. 21, 22; pi. Ixv, fig. 13, 1883. 



