DESCRIPTION OF SPECIES. 181 



secondaries parallel, equidistant, oblique, nearly straight towaitl the borders, 

 hranehiug- above, craspedodrome. 



The leaf is about 8"'" long, G.b""' broad near the base, where it is cut or 

 obliquely truncate, abruptly deflexed to the base of the midrib and decur- 

 ring to it by a short inside curve. The secondaries, of which there are 

 seven pairs, diverge from the midrib at an angle of 40° to 45°, the lower 

 branching, the others simple, entering the teeth directly or by intermediate, 

 shorter teeth, anastomosing at right angles with tertiary divasions, as often 

 observed in species of Grewiopsis. 



This latter is not, however, sufficient proof of the relation of the leaf 

 to any species of Grewiopsis. It differs from all the leaves referred to this 

 genus by the enlarged, subtruucate base, the longer, acute teeth, which are 

 separated by a broad .sinus, showing the same difference with any kind of 

 leaves of Quercus or Viburnum to which it might be compared by the 

 character of the nervation. 



Habitat: Ellsworth County, Kansas. No. 1188 of the collection of Mr. 

 R. D. Lacoe. 



Grewiopsis Mudgei, sp. nov. 

 PI. LXVI, Fig. 3. 



Leaf thickish, subcoriaceous, ovate, obhquely truncate at the base, 

 dentate; median nerve rigid ; secondaries oblique, equidistant, and jjarallel, 

 simple or with few thin l)ranches obliquely passing to the veinlets, joining 

 the border at right angles, lowest pair supra-basilar. 



The leaf is 7'"" to 8*^"" long (apex destroyed), 6.5""" broad near the base, 

 and has seven pairs of secondaries, the lowest supra-basilar, diverging 50° 

 from the midrib, joined by strong nervilles at right angles, simple or fork- 

 ing, some of them entering the teeth by deviating at right angles from the 

 point of connection or forking of the oblique nervilles. The border teeth 

 are very distinct, pointed and turnede outside or at right angles to the borders, 

 separated by broad sinuses; the basil borders are obliquely turned upward 

 from the base of the midrib. 



I do not find any point of comparison for this peculiar leaf except in the 

 large leaves of G. anisomera Sap. (Fl. Foss. Sc'zanne, p. 409, PI. xiii. Fig. 8), 

 and this even only in the character of the nervation and the peculiar dis- 

 tribution of the nervilles near the borders. G. credmricefornus Sap. (Fig. 7), 

 of the same plate, has also a degree of affinity by the direction and posi- 



