DESCRIPTION OF SPECIES— LACUINI-L-E. 221 



now no otlirr Amoi-ican spcciiiiciis positively rcprosctijing this species. All 

 the others rormcrly considered as referable to if had to lie cliniiiuitcd, cither 

 on account of their too incomplete state of preservation or as forcibly pass- 

 ing by transitions to C. offine. 



Habitat. — Spring Caiion, ]\Ioiitana {Dr. F. V. Hai/dcn). 



C 1 11 n a in o in ii in p o I y in o r p li ii in. Al. Br. 



Plato XXXVII, Fig». (i, 10. 



Cinnamomum poltjmorphum, Heer, Fl. Tert. Helv., ii, p. 88, pi. xciii, figs.25-28 ; xciv, figs. 1-26; iii, p. 185.— 

 Ludw., Palajout., viii, p. 110, pi. xlii, tigs. 1-11.— Sap., fit., ii, p. 278; iii, p. 173, pi. v, figs. 

 l_4._Massal., Seuogal., p. 2G3, i>l. vii, figs. 10-13 ; viii, figs. 5-9. 11, 12, IG, 17 ; xxxviii, fig. lU.— 

 Sisni., M^iu. Pal., p. 52, pi. xxiv, figs. 2-4 ; sxv, fig. 4.— Ett., Bil. Fl., p. 198, pi. xxxiii, figs. 14, 

 15, 17-22. 



Ceanothtis pohjmorphus, Al. Br., Stizeub. Verzeich., p. 88. 



Ceanothus subroiundus, Ung., Cblor. Protog., p. 144, pi. xlix, fig. 7.— O. Web., Pal^ont., ii, pi. xxiii, fig. 6. 



Daphnogene polymorpha, Ett., Tert. Fl. v. Wien iexparie), p. 16, pi. ii, figs. 22-23 ; Foss. Fl. d. Monte Proni., 

 p. 14, pi. vi, figs. 1-8. 



Daphnogene cinuamomifolia, Ett., Foss. Fl. d. Monte Prom., p. 15, pi. vii, fig. 8. 



Camphora poltimorpUa, Hecr, Fl. Tert. Holv., i, p. 112. 



PhijlUUs climamomtHS, Rossm., Versteiu., pi. i, fig. 1. 



Cinnamomum lionsm&sleri, Lesqx., Annual Report, 1872, p. 379. 



Leaves of medium size, varialdo in form, generally ov.al, rounded to a sbort acumen, broadly 



cuneate to the petiole ; lateral nerves tbick, branching outside, joining near the borders the divisions of 



the midrib. 



As seen by the quotation of Heer's figures in Report {he. cit.), the 

 reference was made by error of names, for the characters of these two leaves 

 relate them distinctly to C. pohjmorphum or perhaps to C. affine. The leaves 

 of C. polymorphum are comparatively broader, abruptly narrowed into a sharp 

 acumen; the branches of the lateral nerves are more numerous, at a more 

 open angle of divergence, generally joined by fibrillse to nervilles in right 

 angle to tlie borders. In the leaves which I refer to this species, the surface 

 is coarser, cut by deeper nervilles, the midrib more divided than in C. ajfine. 

 But the essential characters of G. 2)olymorphu77i are not sufficiently distinct 

 upon our specimens, none of them having the upper part of the leaves or 

 the acumen preserved, and the areolation and fibrillne of the borders being 

 obsolete. Therefore, we may have, in the two leaves referred here to C. 

 polymorphum, mere varieties of C. affine, and thus it may be that all the Ameri- 

 can Cinnamomum leaves represent only one species. For this reason, I have 

 omitted the numerous references to European authors for C. Scheuchzeri, 

 described as it is above from too obscure specimens. 



HkmiKV. — Golden, Colorado. 



