FLORA OF THE GREEN RIVER GROUP. 139 



TAXODIUM, Rich. 



Taxodiuin distiehum miocenum, Heec. 



"U. S. Geol. Eep.," vii, p. 7:!, pi. vi, figs. 13-14. 



Abies Nevadensis, Lesqx., " Hayden's Ann. Rep.," 1872, p. 372. 



WIDDRINGTONIA, Endl. 



Widdringtonin. linguaefolia, sp. nov. 



Plate XXI, Figs. 14, 14a. 



Ghjptostrubus Europaus, Lesqx., "U. S. Geol. Rep.," vii, p. 74, pi. vii, figs. 1, 2. 



Branches and branchlets short, pinnately divided ; divisions alternate; branch- 

 lets simple and slender; leaves appressed, irregularly two-ranked or subalteruate, 

 ovate, blunt-pointed or Ungulate. 



The specimens represent two forms of the same species, differing 

 merely by the size or the thickness of the branches and branchlets. The 

 more common form is figured; the other is more slender in all its parts, 

 a var. gracilis, mentioned in "Hayden's Ann. Rep.," 1872, p. 371, as 

 Thuites callitrina, Ung. 



Hal.— Florissant. U. S. Geol. Expl. Dr. F. V. Hayden. 



THUYA, Linn. 



Thuya Garmani, Lesqx. 

 Hayden's "Ann. Rep.," 1872, p. 372. 



GLYPTOSTROBUS, Endl. 

 Glyptostrobus Ungeri ?, Heer. 



Plate XXII, Figs. l-6a. 



Heer, " Fl. Tert. Helv.," i, p. 52, pi. xviii; "Fl. Alask.," p. 22, pi. iii, tigs. 10, 11. 



Stem leaves squamiform, appressed, lanceolate, acute or acuminate; branch- 

 leaves open, two-ranked, much longer, linear lanceolate, acute; male cone small, oval, 

 terminal; strobiles ovate on short branches; scales 6 to 9, obtusely dentate at the 

 upper border, obscurely striate lengthwise. 



This species, obtained in fine specimens, is in some of its characters 

 identical with Cupressites taxiformis, Ung., "Chloris," p. 18, pis. viii and ix. 

 The diversity of the leaves in regard to their position upon the stem and 

 the base of the branches, where they are shorter, appressed, and squami- 

 form, is not indicated by Unger. It seems also to be identical to Chamcecy- 

 parites Hardtii, Endl., as represented by Ett., "Haring FL," p. 35, pi. vi, 

 figs. 1-21, two species referred by Schimper to Sequoia Langsdorfii, Brgt. 

 The cones of the species of Florissant, however, are not those of a Sequoia 



