DESCEIPTIOX OF SPECIES. 141 



ing one of the teeth. The uervilles, mostly obsolete, are seen especially at 

 their point of union to the secondaries. 



I do not find an}- other relation with these leaves than with the fjenus 

 Parrotia. I'.pristhia Ett.,' has a marked degree of analogy with these leaves 

 and witli those of the preceding species. A distant aflfinitv is also remarked 

 with the leaves figm'ed on PI. XXXIV, Figs. 4, 7, 8, described as Acerites. 



Habitat: Pipe Creek, Cloud County, Kansas. Nos. 4078c and 4081 

 of the collection of Mr. R. D. Lacoe. 



Parrotia Canfieldi, sp. nov.^ 

 PI. XXX, Fig. 6. 



Leaves coriaceous, entire, long-petioled, rhomboidal-ovate, palmately 

 trinerved from near the base; primary and secondary nerves thick, craspe- 

 dodi'ome; secondaries four paii's; nervilles deeply marked, simple or fork- 

 ing at the middle. 



This is a beautiful leaf, presei-ved entire, 7.5'"" long, 6"" broad in the 

 middle, witli a petiole nearly 2""° long. The texture of the leaf is thick, its 

 surface shining. Its apex is rather obtuse and slightly emarginate by the 

 pressure of the excurrent strong midrib. The secondaries are nearly as 

 strong as the primaries and pass like these straight to the borders, being 

 mostly simple or without branches, the branches only of the lateral 

 piiniaries being camptodrome. 



The leaf is, in its aspect, like those of some species of Populus, a genus 

 from which it differs evidently by the few secondaries, which are straight, 

 parallel to the ])rimaries, not ciu'ved at all in traversing the blade, not ramose 

 and distinctly craspedodrome. It seems at first related essentially to Par- 

 rotia, l)eiug comparable to P. pristina Ett.,^ the leaves of which are imdu- 

 late-dentate and the nervation less distinctly palmately ternate. But its 

 aflfinit'v is more marked with species of Hedera, like Hedera platanoidea 

 Lesq.,* the leaves of which, also of coriaceous texture, merely differ bv 

 their triuicate base, the supra-basilar disposition of the lateral primaries, 

 the secondaries V)eing thin and ramose. 



HaV)itat: Kansas. No. 7 of the nuiseum of the University of Kansas. 

 Collected by Mr. S. N. Canfield, for whom it is named. 



' Flora V. Biliii, jit. 3, p. 4, PI. xxxix, Fig. 2:!; PI. XL, Figs. H, 25. 



- This species was first described under Hedera, but in a subseciiieut note was changed to Parrotia. 

 Tlie remarks on its affinities, which were made while it was retained under Hedera, are here repro- 

 duced in their original form. — F. H. K. 



3 Flora V. Bilin, pt. 3, p. 4, PI. xxxix, Fig. 23; PI. XL, Figs. 24, 25. 



<Cret. and Tert. Fl., p. 65, PI. ui, Figs. 5, 6. 



