ART. 22 TERTIARY FOSSIL PLANTS FROM ARGENTINA — BERRY 25 



Occurrence. — Three miles north of Estancia Chalia and li/o miles 

 south of Mata Amarilla, upper Rio Chalia, Territory of Santa Cruz. 

 Eolotyye.—Q2ii. No. 37874, U.S.N.M. 



DICOTYLEDONAE INCERTAE SEDIS 

 PHYLLITES NIRIHUAOENSIS, new species 



Plate 3, Figures 18, 19 



Leaf or leaflet tiny, orbicular in outline, with large irregular 

 crenate teeth. Length 6 millimeters. Maximum width 4.5 milli- 

 meters. Apparently sessile. Venation relatively enormously stout 

 and prominent. Midvein flexuous, terminating in an apical tooth. 

 Secondaries 3 or 4 on each side, alternate, stout, often forking, recurv- 

 ing as marginal veins in the teeth. Areolation irregular and mostly 

 rectangular, gradually diminishing in strength. 



This typical form is based on the single specimen figured. It is 

 somewhat similar to a slightly larger fragment from Barancas de 

 Carmen Sylva, recorded by Dusen as E scaloniiphyllwni species." 

 The venation suggests a relationship with the Cunoniaceous genus 

 Weinrrianrda, but this resemblance does not warrant a decision. 



Occurrence. — Southeast side of Rio Nirihuao, 150 yards southwest 

 of Casa Piedra and about 12 miles south of Lago Nahuel Huapi, 

 Territory of Rio Negro. 



Bolatype.—Q2X. No. 37876, U.S.N.M. 



PHYLLITES MOLLINEDIAFORMIS, new species 



Plate 3, Figure 16 



Leaf small lanceolate, coriaceous, with toothed margin and cras- 

 pedodrome secondaries. Based on the single specimen figured and 

 possibly representing a narrow Nothofagus. Shows considerable re- 

 semblance to MoUinedia seymourenms Dusen -^ of Tertiary of Sey- 

 mour Island, Antarctica. 



Occurrence. — Southeast side of Rio Nirihuao, 150 yards southwest 

 of Casa Piedra, about 12 miles south of Lago Nahuel Huapi, Terri- 

 tory of Rio Negro. 



Holotype.—C?it. No. 37877, U.S.N.M. 



PHYLLITES species (cf. SCHINOPSIS) 



Plate 3, Figures 10 to 12 



More or less complete specimens of small linear-lanceolate leaves 

 or leaflets are not uncommon at this locality. They do not show suf- 



2^ Dusen, P., Svenska Exped. Magellansliinderna, vol. 1, No. 4, p. 102, pi. 11, fig. 5, 18y9 

 28 Dus6n, P., Schwed. Sudpolar-Exped., vol. 3, Lief. 3, p. 4, pi. 1, fig. 18, 1908. 



